Select the correct answer.
A piece of physical evidence is fused with sodium metal to form a solution. A deep yellow precipitate is obtained when nitric acid and silver nitrate is added to the solution. Which element does the physical evidence contain?

A.
carbon
B.
nitrogen
C.
iodine
D.
oxygen

Answers

Answer 1

Answer:

a

Explanation:

A


Related Questions

A victim has been shot in their car. Investigators perform a Greiss test around the bullet holes. What are investigators most likely hoping to learn from this test?


The exact time the bullets were fired

The caliber of the gun used

How far away the bullets were fired

The size of the bullets fired

Answers

Answer:

How far away the bullets were fired

Explanation:

Greiss test is a chemical test common with a crime scene and it is used to detect gunpowder residues that are very minute and hard to find.

The gun residues offers information about the distance of the shooter from the victim.

It determines if the crime was suicidal or not and if the crime occurred as a result of self defense.

Finally, Ana belle wants her students to understand the gestalt principles of grouping. how can she teach her students to use the following principles to demonstrate depth in their own paintings?

Answers

The principles of grouping (or Gestalt laws of grouping) are a set of principles in psychology, first proposed by Gestalt psychologists to account for the observation that humans naturally perceive objects as organized patterns and objects, a principle known as Prägnanz.

Explanation:

The Gestalt law of proximity states that "objects or shapes that are close to one another appear to form groups". Even if the shapes, sizes, and objects are radically different, they will appear as a group if they are close.

The principle of similarity states that perception lends itself to seeing stimuli that physically resemble each other as part of the same object. We seek differences and similarities in an image and link similar elements.

The principle of closure refers to the mind’s tendency to see complete figures or forms even if a picture is incomplete, partially hidden by other objects, or if part of the information needed to make a complete picture in our minds is missing.

THE PRINCIPLE OF GOOD CONTINUATION Then there is an intersection between two or more objects, people tend to perceive each object as a single uninterrupted object.

The law of common fate is used extensively in user-interface design, We group elements that move in the same direction..

The principle of good form refers .to the tendency to group together forms of similar shape, pattern, color, etc

If you could solve one of the world's greatest problems, which one would you choose?

Answers

Answer:

solve it maybe

Explanation:

because u would become famous

The economic system or animal cruelty

So recently I dropped out of honors in some of my classes. I am in 8th grade and moving to high school. However, can you change your class placement throughout the years of high school? I have read colleges won't accept you if you are not in honors.

Answers

Answer:yes, you can

Explanation:

The motor oil in a car's engine will accumulate dirt over time, and it is recommended that the oil in a car's

motor be changed regularly. Car mechanics use an instrument called a hydrometer to determine if the oil

needs to be changed. Explain the steps in using a hydrometer and how a hydrometer uses specific gravity to

test the motor oil for dirt.

BI y

(600)

Answers

Explanation:

A hydrometer is an instrument that is mainly used to measure the specific gravity. It works on the Archimedes principle

It measures the relative density liquid that is ratio of density of liquid to that of water.

To perform the test, the car mechanic would take the oil in some graduated cylinder and then hydrometer is lowered into the oil till it floats freely. The point at which the oil touches the stem of the hydrometer is noted. Now oils specific gravity would be more incase of more dirt and this is the benchmark of oil replacement

It measures the relative density of that

Natural selection is an evolutionary mechanism by which _________.
A)
advantageous traits are eliminated in a population
B)
organisms adapt to climatic changes
C)
inherited traits pass consistently through generations
D)
organisms choose which traits to look for in their offspring
E)
advantageous traits become more common in a population

Answers

The answer is B) organisms adapt to climatic changes

A recent study by Rover.com surveyed a random sample of 1500 dog owners. The research
revealed that 975 of the dog owners admit to taking more photos of their dog than their
significant other. Which of the following gives a 95% confidence interval for the proportion
of all dog owners that would admit to taking more photos of their dog than their significant
other?
(A) 0.65 = 1.96, 0.65(0.35)
(B) 0.65 +2.5
0.65(0.35)
1500
(C) 0.65 +1.96-1660
(D) 975 +2.576-975
(E) 975 + 1.96
975(625
Submit Answer

Answers

Answer:

The correct answer is (A).

Imagine that you need to prepare for three end-of-term tests. What steps will you take to make sure your study time is well spent?

Answers

Answer:

Sample Response: I will choose a good study area. Then, I will use highlighting, notes, flash cards, and checklists to study for the tests.

Explanation:

1.Identify and explain TWO ways that warfare changed in the 20th century?

2. Identify and explainONE long term effect of this new type of warfare on societies?

Answers

Answer

Type of weapons used and technology are two ways

Society will become more creative and intelligent at the long run.

Explanation

20th century has recorded a massive turnaround in terms of how warfare has taken place. For instance, there is a drastic shift from the use of ammunition to that of biological weapons. This leverage on the manufacturing of contagious and destructive organisms. Secondly, the use of artificial intelligence and other technological instruments like robots, drones and other viable and faster means are on the increase These are some of the means adopted band used in warfare today.

LONG TERM EFFECT ON SOCIETY

The application of variable technological tools at warfare will bring an increased awareness, alertness and most especially, more creative in bringing about remedies. It will spur societies into active involvement as well as a change in behaviour.

The number of years that have passed since the rock formed is the rock's ______

absolute age

geologic timeline

relative age

half life

Answers

Answer:

absolute age

Explanation:

The company A produces products a, and the company B produces products b. It is known that 3 percent of companies that produce products a go bankrupt over the year. Plus, the probability for companies producing products b to go bankrupt over the year is 6.1. What is the probability (given in decimal number) that both companies are going bankrupt over the year?

NB! Give the answer as a decimal number and round it to two decimal places.

Answers

Answer:

probability = 0.183 %

Explanation:

given data

produce products = 3 %

probability for producing products b = 6.1

solution

Both companies produce different products and the likelihood of bankruptcy varies depending on the product produced. So, the bankruptcy potential of A and B companies is independent.

we will  multiply the probability of each company's bankruptcy and that will be

probability = P(A=bankrupt) ×  P(B=bankrupt)

probability = 3% × 6.1%

probability = 0.183 %

Which of these is NOT an important thing to consider when choosing a path after high
school?

A. Figuring out what you want.

B. Determine if your path matches most of your peers.

C. Research your options in different schools or training opportunities.

D. Determine if a school or academy offers programs you are interested in.

Answers

Answer:

the answer would be B.

Explanation:

it would be B because you don't have to choose what matches most with your peers, if you we're to choos B, you wouldn't try anything new because you would only choses what your already good at instead of trying somthing new

The deep ocean floor communities contain very little life. In constant darkness, the water at these depths hovers around 2°C . Sparsely distributed in this environment are hydrothermal vent ecosystems. Superheated water streams out of the vents at temperatures approaching 400°C . These waters are rich in inorganic materials, including carbon dioxide and hydrogen sulfide. Hydrothermal vent zones have a density of organisms 10,000 to 100,000 times greater than found on the surrounding seafloor.

Scientists have studied these vents to determine the energy source for these communities and the identity of the primary producers in the perpetual darkness of the ocean floor. As expected, they found a total absence of photosynthetic organisms at all vents, identifying mats of bacteria as the producers of the carbon compounds that are used by the rest of the community for growth, repair, and as an energy source.

Which of the following describes how the vent bacteria harvest energy to produce organic compounds for use by the vent community?


The bacteria use the heat from the hot water to assemble carbon-based materials from inorganic molecules.

A

The bacteria function as chemoautotrophs, extracting energy from hydrogen-rich inorganic molecules.

B

Organic matter drifting down from the ocean’s surface is used to make molecules with enough energy to sustain the vent community.

C

The bacteria can recycle the energy from the waste products and dead material produced by the heterotrophs of the vent community into energy-rich carbon compounds that can be recycled.

D

Answers

Answer: B. The bacteria function as chemoautotrophs, extracting energy from hydrogen-rich inorganic molecules.

Explanation: The bacteria use the energy stored in hydrogen sulfide to produce carbon compounds that are used by the heterotrophs in the community. This process is known as chemosynthesis.

The option that describes how the vent bacteria harvest energy to produce organic compounds for use by the vent community is B. The bacteria function as chemoautotrophs, extracting energy from hydrogen-rich inorganic molecules.

From the information given, the waters are rich in inorganic materials, including carbon dioxide and hydrogen sulfide.

Therefore, the vent bacteria can harvest energy to produce organic compounds for use by the vent community. This can be done by extracting energy from hydrogen-rich inorganic molecules.

Read related link on:

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Do you think there is any way to increase your intelligence? What sort of things might you do?

Answers

Answer:

You can increase your intelligence. Scientists have proven this with tons of experiments on animals. We are also animals, meaning ours can be increased too. Simple things such as reading, strategic board games, crossword puzzles, and word searches are great ways to improve intelligence.

Explanation:

“The castle at Elmina* has justly become famous for its beauty and strength and has no equal on the Gulf of Guinea. The castle’s garrison typically consists of one hundred Europeans and perhaps as many black African soldiers, all of whom are in the Dutch West India Company’s pay.

This castle was brought to its perfect state under the Dutch West India Company after they captured it from the Portuguese in 1637, and they found in it thirty good pieces of brass cannon, large amounts of gunpowder, and a great deal of other ammunition. It was not nearly as strong nor as beautiful when the Portuguese controlled it. Now it looks as if it had been made for a king than for a trading-post in Africa. This proves that the Dutch are the most curious and the most fit to make settlements abroad of all European nations, because they spare neither time, nor money, nor labor in their undertakings.

The Dutch attempted to use their control over the castle to monopolize trade along the West African coast. I was told that the Dutch used to export much gold and roughly eight thousand slaves, most of whom were sent to the Dutch island of Curacao in the Caribbean, from where the Spaniards purchase the slaves. The Dutch also export from West Africa vast quantities of wax, pepper, red wood, cloths, and other goods.”

*Located in the modern African nation of Ghana.

Jean Barbot, French Protestant and agent of the chartered Senegal Company (Compagnie du Sénégal), book describing his travels in West Africa, written circa 1682

a) Describe the broader historical situation in Africa at the time that Jean Barbot wrote his book.

b) Explain ONE way in which the passage illustrates the continuing development of the Atlantic in the seventeenth century.

c) Explain ONE way in which Barbot’s background might have influenced his comments about the Dutch and the Portuguese in the second paragraph.

Answers

Answer:

The broader historical situation in Africa at the time that Jean Barbot wrote his book was that dutch was making profit by exporting slaves in Spaniards and goods such as wax, pepper , red wood, and cloths, etc at that time. According to the text,"roughly eight thousand slaves, most of whom were sent to the Dutch island of Curacao in the Caribbean, from where the Spaniards purchase the slaves. The Dutch also export from West Africa vast quantities of wax, pepper, red wood, cloths, and other goods.”ONE way in which the passage illustrates the continuing development of the Atlantic in the seventeenth century is that the dutch took the control over the Africa and and used prisoners and black Africans as slaves. They first became friends with the African people and then they took control over them. ONE way in which Barbot’s background might have influenced his comments about the Dutch and the Portuguese in the second paragraph. That paragraph talks about how the dutches were really curious about everything and gave africa a name by reconstructions those buildings nicely and then by using advanced technology such as gunpowder. According to the text," thirty good pieces of brass cannon, large amounts of gunpowder, and a great deal of other ammunition. It was not nearly as strong nor as beautiful when the Portuguese controlled it". It also talks about how Portuguese was nothing compared to the dutch at that time because they nearly controlled everything.

Explanation:

The study by George Perkins Marsh published in 1864 showed that the farmlands in Vermont had more organic matter than the farmlands in Italy. Which horizon of the two farmlands soils was he comparing?

Answers

Answer: vermount and Middle East

Today he is best remembered for his contribution of Man and Nature. The work incorporates observations he made as a youth in Vermont, as well as on his travels in the Middle East. He was the first to suggest that human beings were agents of change, or "disturbing agents." The conventional idea held by geographers of the day, Arnold Guyot and Carl Ritter, was that the physical aspect of the earth was entirely the result of natural phenomena, mountains, rivers, oceans. No one had ever turned to the study of the earth as the home of humankind. Marsh was the first to describe the interdependence of environmental and social relationships.

Explanation:

He was a good diplomat. But we remember Marsh the scholar. He was a student of Scandinavian languages. As a philologist, he wrote an important book on the character of the English language. He was an art collector. As a scientist, he gathered reptiles for the Smithsonian. He was instrumental in the Army's attempt to use the camel in the American Southwest

Over the next few years, Marsh gave a series of lectures on the English language. In 1861, President Lincoln appointed him the first United States minister to the kingdom of Italy, and on April 27, at the age of 60, he set sail, with Caroline, for Europe. In Italy, he found time and capacity for his environmental concerns. He made several fruitful excursions to the Alps where he studied glaciers, moraines, and avalanches. Marsh witnessed Alpine erosion and the devastating contribution of grazing and deforestation, in disastrously accelerating natural erosive processes. In 1862, he began working on the manuscript for Man and Nature, a pioneering study in ecology and conservation.

Answer: A) Horizon O

Explanation: Horizon O is made up of mostly organic matter which is what farmers utilize for agriculture. The other three horizons listed are farther down underground which is not where organic matter primarily resides.

do you got a dog
cause i do her name is zoey lou

Answers

I have 6 fishes and i don’t name them bc they all look the same

Answer:

I have a husky named Vegas and a Pitbull named diamond

Explanation:

Hydrochlorofluorocarbons (HCFCs) are human-made chemicals that have been used as temporary replacements for chlorofluorocarbons (CFCs) in refrigerants because they decompose more readily in the atmosphere and thus pose less of a threat to Earth’s protective ozone layer. Levels of HCFCs have been measured in the stratosphere, and the concentrations of many different HCFCs have been steadily increasing since the mid- to late 1990s.

One important drawback of the use of HCFCs as a replacement for CFCs is that HCFCs:

a) biomagnify in food chains in the Arctic ecosystem

b) combine with water vapor to form acid precipitation

c) are greenhouse gases that contribute to climate change

d) react with carbon monoxide ( CO ) to form ozone in the troposphere

Answers

Answer:

c) are greenhouse gases that contribute to climate change

Explanation:

The CFCs and the HCFCs are fully and partially hydrogenated carbons and contains carbon and hydrogen and chlorine and fluoride and other volatile substance and being a component of the greenhouses gases like the methane. These contribute to climate change and the greenhouse effects on the earth and this is due to the government have phased put the use of CFCs and though this gas has a short lifespan.

It should be noted that one drawback of the use of HCFCs as a replacement for CFCs is that HCFCs is C. are greenhouse gases that contribute to climate change

It should be noted that CFCs and HCFCs contain carbon, hydrogen, chlorine, fluoride and other volatile substance and are a component of the greenhouses gases like methane.

They contribute to climate change and the greenhouse effects on the earth. This illustrates the drawback of the use of HCFCs as a replacement for CFCs.

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Which instrument is an ancestor of the modern oboe?
A. Shawm
B. Serpent
c. Sackbut
D. Cornetto

Answers

A. Shawm, is the ancestor of the modern oboe

Shawm instrument is an ancestor of the modern oboe.

What is Shawm?

The loud double-reed shawm, a forerunner of the oboe, is an instrument. It makes its initial appearance in the thirteenth century, and by the end of the Middle Ages, it had become the most significant loud instrument in use, finding a position in dance bands as well as ensembles for official rituals held by the government and courts.

For example, most medieval towns had shawm bands to play the "all's well" from the tower and be available for social and ceremonial occasions.

According to the theorist Johannes Tinctoris, who lived in the late 15th century, the instrument's gentle tone and constrained range, both of which were likely caused by its cylindrical rather than conical bore.

Therefore, Shawm instrument is an ancestor of the modern oboe.

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#SPJ7

can you name me 3 rappers that died

Answers

Juice wrld,pop smoke,xxxtentacion
XXXTENTACION
Tupac
Juice Wrld

In women’s tennis, a player must win 2 out of 3 sets to win a match. If a player wins the first 2 sets, she wins the match and the third set is not played. Player V and Player M will compete in a match.

Answers

Answer:

what is the question

Explanation:

If today is October 9th and we observe a full moon, how many more weeks will
it be before we observe the next first quarter?​

Answers

Answer:

aproximately october 16th

How do the different perspectives effect how each story is told?

Answers

Answer: Different perspectives affect how the story is told because everyone has different point of views or their shift of focus varies from each other. for example one character may talk extensively about his grandmothers hair while the other one might talk about her face.

Are people born intelligent, or does the environment “make” them intelligent? Explain.

Answers

The environment makes them intelligent because that’s why school was invented and being intelligent doesn’t run through genes

If someone, the most special person/friend died, what would you do? Answer properly. Best one get's brainliest. {15 pts}

Answers

I would mourn the loss of such a beautiful soul. You’re never prepared to lose someone who you hold close, so there is no proper reaction. The best thing you could possibly do is to celebrate and honor their life. Appreciate them for all they have done for you and taught you up until the day they left. Forgive them for the mistakes they’ve made, because it’s hard to live a life that is full of grudges. Remember them for their perfections and not their flaws, as they’ll do the same for you up above. Always know, they’re here even if it’s not physically and they have your back if you ever feel alone. Don’t ponder on the days you could’ve had with them, but remember the good days you did have with them. The days might’ve been short, but you have memories that’ll last forever.
I would be sat but try to keep my head high that way I wouldn’t feel as sad but how ever, I would not forget them. That’s a hurtful thing and a nice question.

What is one major empire or state BEFORE the mongol invasions in:

East Africa?
And South Asia?

Answers

Jin Dynasty which was in China and for east africa I cant find or remember anything from their the closest is the Islamic empire.

Fourteen Colorado counties were surveyed to see what percentage of children under 18 were living with their grandparents. The results are shown here. What is the interquartile range of the data? A) 1.425 B) 1.875 C) 2.125 D) 2.375

Answers

Answer:

The answer is A

1.4

Case Studies

1. Thomas counts everything in sets of four. He does this while brushing his teeth,

doing his homework, eating his cereal or watching television. Thomas counts both out

loud and internally depending on the situation. He is currently failing out of school

because he devotes so much of his time to counting.

Answers

Answer:

Thomas has psychological disorder

Explanation:

Thomas is suffering from a psychological disorder called as OCD or obsessive compulsive disorder.

It is a condition where the person has some obsessions about something, which he cant overcome and in response of these, he performs some actions or compulsions. These behaviours are performed frequently and they are not in control of the person

Now Thomas has some obsession of counting and in response to that he keeps on counting I sets of four

Based on the Case Studies of Thomas, he has Behavioral Disorder called OCD.

What is OCD behavior?

The OCD connote Obsessive-Compulsive Disorder (OCD). This is known to be a type of severe and long-lasting disorder where a person is said to have an uncontrollable, reoccurring thoughts or behaviors.

Thomas is showing of OCD as he has unreasonable thoughts and obsessions that may result to compulsive behaviors.

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This is the phase of the business cycle, where there are large unemployment rates, a decline in annual income, and overproduction.
a.
recession
c.
recovery
b.
depression
d.
peak

Answers

You mixed up the answers haha but it’s okay. The answer is B. Depression
Explanation: Large unemployment rates, overproduction, and a mass decline in annual income.

As a senior in high school, Ludy worked as an assistant to the children's librarian in his town library. He
enjoyed shelving the books in the library because he was able to work alone and focus on his task.
Although the library was normally a quiet place, sometimes the children's section became quite noisy
when groups of children visited. After working in an unfulfilling desk job for 30 years, Ludy recalls how
much he enjoyed working at the library and decides to go back and work as a volunteer creating new
programs for disadvantaged children.
Describe how each of the following concepts relates to Ludy's return to working at the library.
Crystallized intelligence
Altruism
Big Five trait of extraversion
Broca's area
Self-efficacy
Episodic memory
Self-actualization

Answers

Answer:

Check below for answers and explanations

Explanation:

a) Crystallized intelligence is a form of knowledge that is garnered from past experiences or adequate study. Lucy has previously worked in the library as a high school student before going there for the volunteering service. The experiences she has gotten from her past works in the library will be deployed into her current program for a successful outcome.

b) Alrtruism is a philosophical term that describes the concern of an individual for the well-being of others. Lucy's volunteering service that is targeted at assisting disadvantaged children is a proof of her altruistic lifestyle.

c)The Big five trait of extraversion describes how sociable a personality is. While Lucy was walking in her community library, a good number of children visited, her return to the library to organize a program for children proves that she loves being around and socializing with children.

d) The Broca's area is a part of the brain that plays a vital role in producing and understanding speeches. For Lucy to organize such a developmental program like this, she must be very eloquent with an admirable leadership skills. Her ability to even attend to library users as a high school student is a proof that she has a sound oratory prowess.

e) Self efficacy is the ability to control one's actions and deal with situations that require critical decision making. Lucy's decision to leave a paid job that doesn't give her satisfaction for a volunteering program in the library is an attribute of self efficacy.

f) Episodic memory is the process of bringing back and combining past experiences and events. Lucy recalled how much she enjoyed working at the library and decided to return there.

g) Self actualization is a fulfilment of one's dreams and goals. Lucy's return to the Library is like bringing back the sweet work experiences she once had. This indeed is self actualization.

There are different concept to how human behave,

Crystallized intelligence is previous experiences that help an individual function well  Lucy has previous experience at the library that helped him.

Alrtruism is the concern of an individual towards the well-being of others. Lucy's altruistic lifestyle was shown in his volunteer service helps to assist disadvantaged children.

The Big five trait of extraversion tells of a sociable personality, Lucy was sociable she organize a program for children.

The Broca's area helps to produce and understand speeches. it is a part of the brain,  Lucy ability to organize a developmental program shows she has a good oratory prowess.

Self efficacy, Lucy's was able to control her own action, she left a paid job for a volunteering program in the library.

Episodic memory helps to bring back past experiences and also combine them. . Lucy remembered how she enjoyed working at the library and she made up her mind to return there.

Self-actualization is fulfilling one's goals. Lucy returned to the Library to get fulfillment in what she loves to do.

What is human behaviour?

Human behavior is the way humans act or react which is based on environment such as culture and genetic make-up.

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