Answers
Here we ignore the prefix for the first element if it is 1. Mono. Then pay attention to the second one, it would be tetra, because tetra means 4. Here there are 4 fluorines.
Drop ine and place ide
CF4 = carbon tetrafluoride.
Related Questions
HELP FAST PLZ!!!!
which statement describes the role of decomposers in the carbon cycle?
A they release the carbon that remains in the bodies of dead organisms.
B they prevent carbon from escaping into the atmosphere
C they absorb carbon dioxide in the atmosphere
D they change carbon dioxide into a form that organisms can use.
Answers
Answer:
Your answer would be A.
Explanation:
I took a quiz with the same exact question
An air mass of volume 6.5 x 10 to the fifth L starts at sea level, where the pressure is 775 mm HG. It rises up a mountain where the pressure is 622 mm HG. Assuming no change in temperature, what is the volume of the air mass?
Answers
Thus, Vα1/P
= V = k/P where k is a constant
P1V1=P2V2
Therefore; V2 = P1V1/P2
= ( 6.0 ×10^-5 × 775) /622
= 7.476 × 10^-5 L
Hence, the new volume of the air mass is 7.476 × 10^-5 L
HEELLP PLEEASEE I GIVE 30 POINTS + BRAINLIEST!!!!!! HELPP PLEEAASEE
Answers
Are you male or female? It won't help for this question. It would have if I'd known before hand. It will help me to answer you later on. Do you cook is the point? If you do, you should know something about what happens when you bake a cake. But you may not be able to guess, even if you do cook. How about dough rising (for bread or buns?) Is that chemical or physical? This time I'll tell you. It's chemical.
To make a cake you need to blend a whole bunch of things together, sugar flour, eggs (most of the time). What happens? Do the look the same when you've finished baking?
That's right. Something new results especially to the egg. Chemical.
Burning a log is another common example. What are you left with after you've burned a log? Can you get the log back. Is there anything you can do to get the log back? If it was physical, you could. So what's left? And what do you see when you burn a log? Do you live where it snows? If you do, you must have seen a log burn.
What is the source of energy that is released in an exothermic reaction? what absorbs the energy that is released ?
Answers
Here are your answers:
The proper answers to your questions are....
1. "Chemical bond energy is converted to kinetic energy"...... which causes it to release energy around its surroundings!
2. "Endothermic reactions"...... Endothermic reactions are the things that absorb the energy!
If you need anymore help feel free to ask me!
Hope this helps!
As part of a science experiment, Jose did a test for starch on a slice of apple and a slice of potato. The yellow-orange iodine solution stayed the same color when it was put on the apple, but it became black on the potato. Why did the iodine solution change color on the potato? A. The iodine evaporated into a gas. B. The iodine mixed with the colors of the potato so it looked black. C. The iodine burned the potato and turned it to ash. D. The iodine reacted with the potato to form a new substance.
Answers
Answer:
The iodine reacted with the potato to form a new substance.
Explanation:
How hot or cold is Mercury
Answers
(-279F or -173C)at night to very hot (800F or 430C) during the day. This is due to the lack of atmosphere this planet has. And although it is the closest planet to the sun it is only the 2nd hottest planet
How many milliliters are in 22 mm3?
Answers
ll of the following could be considered reconstruction except :
A. scientists assume an area was once undersea due to the types of rock deposits
B. scientists assume an animal was a meat eater because of the teeth in its fossil
C. scientists assume an animal could climb trees because of its hand structure
D. scientists predict a volcano will erupt in the near future because of current volcanic activity
Answers
Answer: -
D. scientists predict a volcano will erupt in the near future because of current volcanic activity
Explanation: -
Reconstruction involves analyzing evidence present to understand what happened before. For example scientists assume an area was once undersea due to the types of rock deposits. The area was under sea before.
Scientists assume an animal was a meat eater because of the teeth in its fossil. Again the animal was before.
Scientists assume an animal could climb trees because of its hand structure . The animal existed before. Now no longer present.
But in D scientists predict a volcano will erupt in the near future because of current volcanic activity, the event of eruption could occur in the future. It has not happened already like in the previous cases.
When an electron moves to another orbital farther from the nucleus, does it gain or lose energy?
Answers
what are the four main spheres of the earth system
Answers
1) lithosphere
2) hydrosphere
3) atmosphere
4) biosphere
If the wavelength of one wave is 0.25 or ¼ meters, how many waves will be formed in one meter?
Answers
An electromagnetic wave that has a lower frequency than infrared radiation will have ____ than the infrared radiation. longer wavelength and higher energy longer wavelength and lower energy shorter wavelength and higher energy shorter wavelength and lower energy
Answers
Explanation:
1) The wavelength is inversely related to the frequency. So, an electromagnetic wave with lower frequency will have longer wavelength.
This is the formula for electromagnetic waves:
λ = c / ν
where λ is the wavelength, c is the speed of light, and ν is the frequency.
2) Energy is directly related to the frequency.
This is the formula E = hν,
where E is the energy, h is Planck constant, and ν is the frequency.
So, the lower the frequency the lower the energy.
3) Conclusion:
An electromagnetic wave that has a lower frequency than infrared radiation will have longer wavelength and lower energy than the infrared radiation
The answer is longer wavelength and lower energy.
Properties such as luster, conductivity, and flexibility are used to describe what type of elements
Answers
Answer:
A.metals is the correct answer
Which equation shows conservation of mass? A. H2O → H2 + O2 B. PCl5 → PCl3 + Cl2 C. Na + Cl2 → NaCl D. Al + Br2 → AlBr3
Answers
Answer:
B. PCl₅ → PCl₃ + Cl₂.
Explanation:
The conservation of mass is a phenomena that is applicable and found in chemical reaction but only balance chemical reactions.Balanced chemical reaction means that: The number of atoms of the reactants = the number of atoms in the products.In balanced chemical reaction; the atoms that enter and participate in the reaction will result from it and maintain the mass of each atom.The first choice (A) is wrong that it is unbalanced chemical reaction,H₂O → H₂ + O₂, the oxygen has 1 atom in the reactants side while has 2 atoms in the products side.
to be balanced and apply conservation of the mass it should be: H₂O → H₂ + 1/2O₂.
The second choice (B) is the right answer: PCl₅ → PCl₃ + Cl₂.The number of atoms of P (1 atom) and Cl (5 atoms) are the same in both sides of reactants and products.
The third choice (C) is wrong that it is unbalanced chemical reaction,Na + Cl₂ → NaCl, the Cl has 2 atoms in the in the reactants side while has 1 atom in the products side.
to be balanced and apply conservation of the mass it should be: Na + 1/2Cl₂ → NaCl.
The fourth choice (D) is wrong that it is unbalanced chemical reaction,Al + Br₂ → AlBr₃, the Br has 2 atoms in the in the reactants side while has 3 atoms in the products side.
to be balanced and apply conservation of the mass it should be: 2Al + 3Br₂ → 2AlBr₃.
The law of conservation of mass states that matter cannot be created nor destroyed. In chemical equations, this is demonstrated by having an equal number of atoms for each element on both sides of the equation. Thus, the balanced chemical equation PCl5 → PCl3 + Cl2 shows the conservation of mass.
Explanation:The principle of the conservation of mass is demonstrated by a balanced chemical equation, which has an equal number of each element's atoms on both sides. In the options given, the correct equation demonstrating mass conservation is PCl5 → PCl3 + Cl2. This equation rightly represents the law of conservation of mass as the number of atoms for each element is equal on both the reactant and the product side.
Out of the other options, H2O → H2 + O2 is incorrect because there is only 1 oxygen atom in the reactant side (in H2O) but 2 in the product side (in O2). Both Na + Cl2 → NaCl and Al + Br2 → AlBr3 do not conserve mass, as they don't have equal number of atoms for each element on both sides of the equation.
Remember, to show conservation of mass in a chemical reaction, the equation must be balanced, meaning it must contain equal atoms of each element on the reactant side and the product side, highlighting the fact that in any process, matter is neither created nor destroyed.
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What evidence do scientists have that Earth has been hit by large objects, like asteroids, in the past? Check all that apply.
Answers
Answer:
layer of burned organic matter
change in average global temperature
mass extinctions
Explanation:
Asteroids are external rocks/objects that hit the surface of the earth.
Let's check the options:
1- layer of volcanic ash: This option is rejected as volcanoes are caused as a result of the internal heat and combustion in the layers of the earth. Therefore, volcanoes are independent of external bodies as asteroids.
2- layer of burned organic matter: This option is accepted. When bodies , as asteroids, hit the earth, their clash with the earth's surface usually lead to burns and/or fires leading to layers of burnt organic matter that is found on the surface of the earth and its underlying layers.
3- change in average global temperature: This option is accepted as these bodies usually have different temperatures than that of the earth's climate. Therefore, when they penetrate the earth's atmosphere, they can lead to a change in the global temperature.
4- mass extinctions: This option is accepted as the collision of these bodies with the earth's surface can lead to destruction of creatures/objects which may lead to mass extinctions.
5- earthquake activity: This option is rejected as earthquakes are formed as a result of the motion of plates within the layer's of the earth and not as a result of external bodies.
Hope this helps :)
A 100 meter dash was held with 20 contestants. The best time was 10.7 seconds, and the worst time was 15.3 seconds. Only the fastest 10 contestants advance to the final race. Which measure of central tendency should be used to calculate the cutoff time for the final race? A. median B. mode C. mean D. range
Answers
Answer:
median
Explanation:
study island i got it right
Answer:
median
Explanation:
Both algae and amoeba are in the domain Eukarya. Which of the following characteristics do they most likely share?
They both belong to the plant kingdom.
They both have cells with no nucleus.
They both have cells with membrane-bound organelles.
They both belong to the animal kingdom.
Answers
Answer: They both have cells with membrane- bound organelles.
Explanation:
The domain eukarya includes the eukaryotic organisms, which range in diversity from single celled to multicellular. These organisms have cells that have membrane bound organelles, nucleus is present in them. These organisms range from simple to complex life cycles.
Hence, both algae and amoeba which belong to domain eukarya have membrane bound organelles in their cells.
Answer:
C, They both have cells with membrane-bound organelles.
Explanation:
I did the module exam
A piece of copper at 10 °C is dropped into a glass of water at 35 °C. Which statement is correct?
A. Heat will flow from the copper to the water in the glass until both reach the same temperature.
B. Heat will flow from the water in the glass to the copper until both reach the same temperature.
C. The final temperature of the water in the glass and the copper will be 10 °C.
D. The final temperature of the water in the glass and the copper will be 35 °C.
Answers
Answer:
The correct answer is option B, that is, heat will flow from the water in the glass to the copper until both reach the same temperature.
Explanation:
Let us see a perfectly thermal insulation system with a glass of water at higher temperatures and a piece of copper at a lower temperature, and when both encounters each other than water will lose some of the heat and that heat will be gained by the copper. The procedure will take place until and unless both attain a similar temperature. After attaining a similar temperature, there will be no change in temperature or heat between the two. The change in heat is a function of temperature difference.
Earth's path around the sun is _____.
a) eliptical
b) circular
c)random
d) triangular
Answers
Hope this helps
~ Jordan ~
How many atoms of oxygen are in one formula unit of Al2(SO4)3? 4 6 7 12
What is the name of the compound Cr2(CO3)3?
Which of the following contains both ionic and covalent bonding?
NaClO
NO2
FeBr3
HI
Answers
2) name of the compound is chromium(III) carbonate. Chromium has oxidation number +3 and carbonate has -2.
3) NaClO contains both ionic and covalent bonding, ionic bond is between sodium and chlorine and covalent bond is between chlorine and oxygen.
What is a physical property of water?
A) liquid at room temperature
B) not flammable
C) pH of 7
D) reacts with sodium
Answers
Why are sound recordings needed to preserve sound information
Answers
How will the arrangement of salt particles most likely change?
Answers
Answer:
Salt particles will diffuse and towards where it is less that is left !!
so your answer is A !! left through diffusion !!
Explanation:
Which of the following is an example of a population?
Question 7 options:
all of the western diamondback rattlesnakes in Big Bend National Park
all plants and animals in Grand Canyon National Park
all leopard frogs in the world
all of the trees in Yellowstone National Park
Answers
In biology, a population is made up of all individuals of a specific species within a certain area. Thus, the example that best fits this definition is all of the western diamondback rattlesnakes in Big Bend National Park.
Explanation:In biology, a population consists of all the individuals of a certain species living within a specific area. Therefore, the best example of a population among the options provided is all of the western diamondback rattlesnakes in Big Bend National Park. This is because this group contains only one species (western diamondback rattlesnakes) and is limited to a specific area (Big Bend National Park).
Alternatively, the other options contain either multiple specie (all plants and animals in Grand Canyon National Park and all of the trees in Yellowstone National Park) or include a species that is not confined to a specific area or region (all leopard frogs in the world).
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The reactant Zn is an
element
an ionic compound
a molecule
an oxide.
Answers
Helpp pleaseeeeeeeee
Answers
Answer:
The Sarah will arrive at 5.00 P.M..
Explanation:
Distance covered by Sarah = D = 30 miles
Time taken by Sarah to travel 30 miles = T
Speed by which Sarah cycling = S = 10 mile/hr
[tex]Speed=\frac{Distance}{Time}[/tex]
[tex]Time = \frac{Distance}{Speed}[/tex]
[tex]T=\frac{30 mile}{10 mile/hr}=3 hr[/tex]
Sarah will reach her grandmother's house in 3 hours.
If she leaves the home at 2.00 P.M. ,then she will reach at her grandmother's house by 5.00 P.M..
The equation Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) is an example of which type of reaction?
Answers
Answer : This is an example of single-displacement reaction.
Explanation :
Single-displacement reaction : It is a type of reaction in which the more reactive metal displaces the least reactive metal from its solution.
It is represented as :
[tex]A+BC\rightarrow AC+B[/tex]
where A is the most reactive metal and BC is the compound in which the B is the least reactive metal which is displaced by the most reactive metal A.
The given balanced reaction is,
[tex]Mg(s)+2HCl(aq)\rightarrow MgCl_2(aq)+H_2(g)[/tex]
This reaction is an example of single-displacement reaction in which the magnesium metal displaces the hydrogen metal from its solution to give magnesium chloride and hydrogen gas as a product.
Hence, the given reaction is an example of single-displacement reaction.
for an experiment, you need 0.10 moles of NaCl for a chemical reaction. how much NaCl must you weigh out?
A. 0.14g
B. 3.2 g
C. 8.2 g
D. 5.8 g
Answers
∴mass = mole×Mr =0.10 × (23+35.5) = 5.85
the answer is D...
The Mr is obtained from the periodic table
The mass of NaCl needed for the reaction, you can use the molar mass of NaCl and the given number of moles. The molar mass of NaCl is 58.44 g/mol. By multiplying the number of moles (0.10) by the molar mass, you can calculate the mass of NaCl needed, which is approximately 5.844 g. Option D, 5.8 g, is the closest answer.
To calculate the mass of NaCl needed for the reaction, you can use the molar mass of NaCl and the given number of moles. The molar mass of NaCl (sodium chloride) is the sum of the atomic masses of sodium (Na) and chlorine (Cl). The atomic mass of sodium is approximately 22.99 g/mol, and the atomic mass of chlorine is approximately 35.45 g/mol.
Molar mass of NaCl = Atomic mass of Na + Atomic mass of Cl
= 22.99 g/mol + 35.45 g/mol
= 58.44 g/mol
Now, you can use the formula:
Mass = Number of moles × Molar mass
Mass = 0.10 moles × 58.44 g/mol
Mass = 5.844 g
Therefore, the correct answer is closest to 5.8 g, which corresponds to option D. Therefore, you should weigh out 5.8 g of NaCl for the chemical reaction.
Choose all that apply.
Gas pressure within a fixed container will increase when ____
A) gas is cooled
B) gas is heated
C) gas volume changes
D) mass of gas is increased
Answers
B) Gas is heated, And D) Mass of gas increased.
Gas pressure within a fixed container will increase when gas is heated and also when mass of gas is increased.
Answer: Options B and D
Explanation:
In a closed container, the temperature is proportional to pressure according to the pressure law. When the gas presents in a container, it means that the size of the container remains constant unless/until it is changed by increasing its size or decreasing it.
When the container gets heated, gas particles gains more kinetic energy, moves faster and hits the inner walls of the container. The amount of gas particles also seems to be more.
And so, it hits the container's wall more frequently and with more speed and force. Hence, these make the gas pressure in the container to increase. According to the Boyle’s law,
[tex]p V=n R T[/tex]
Where, p – pressure, V – volume, n – no. of moles, R – gas constant, T – temperature.
This also tells the reason how the gas pressure increases when the amount of gas and temperature get increased.
Name two other compounds with bonding similar to that in hydrogen bromide