Answer:
631.3 milligrams of oxygen gas will react with the TNT.
Explanation:
[tex]4C_7H_5N_3O_6+21O_2\rightarrow 28CO_2+10H_2O+6N_2[/tex]
Moles of TNT = [tex]\frac{0.853 g}{227 g/mol}=0.003758 mol[/tex]
According to reaction , 4 moles of tNT react with 21 moles of oxygen gas.
Then 0.003758 moles of TNT will react with:
[tex]\frac{21}{4}\times 0.003758 mol=0.01973 mol[/tex]
Mass of 0.01973 moles of oxygen ;
[tex]0.01973 mol\times 32 g/mol=0.6313 g=631.3 mg[/tex]
( 1 g = 1000 mg)
631.3 milligrams of oxygen gas will react with the TNT.
Kim described two subatomic particles below:
Particle P: Has the least mass
Particle Q: A more massive particle with a charge
Which of the following statements is correct based on the descriptions of each particle?
Particle P repels Particle Q.
Particle P attracts Particle Q.
Particle P is a neutron and Particle Q is a proton.
Particle P is a proton and Particle Q is an electron.
Answer:
#2
Explanation:
Describe three signs that a chemical reaction has taken place and give an example of each sign
Change in state, change in color, and change in odor are three signs that a chemical reaction has taken place.
What is a chemical reaction?A chemical reaction is a process in which the atoms or molecules of one or more substances (known as reactants) are rearranged to form one or more different substances (known as products).
During a chemical reaction, chemical bonds between atoms are broken and new bonds are formed between different atoms. It results in the creation of new chemical compounds with unique properties.
Chemical reactions can be represented by chemical equations that show the reactants and products involved in the reaction. These reactions can be exothermic (releasing energy) or endothermic (requiring energy). They play a crucial role in various natural and industrial processes.
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In addition to resembling One another, what other criteria of organisms to be grouped in the same species
Answer:
The answer is they reproduce with only one another.
Explanation:
In biology, species is a term that can be defined as a group of organisms that can reproduce with one another and give birth to fertile offspring. In other words, the organisms in one species cannot reproduce with organisms in another species. So, to be considered as part of the species, this criteria is very important.
What kind of energy is required for photosynthesis to occur?
A. Solar energy
B. Energy from nutrients in the ground
C. Energy stored in chemical bonds
D. Thermal energy
A, Solar energy
Hope it helps :)
Finish & balance the equation for the dissolution of sodium carbonate in water. This is a neutralization. 2HCl + Ca(OH)2 ---->
A balloon with a volume of 0.851 L holds 0.783 mol He gas at a temperature of 150.0 K. The temperature then increases to 305 K, and the pressure is changed to 0.800 atm. The original pressure of the gas was ______ atm. The final volume of the balloon is _____ L.
Answer:
Original pressure = P1 = 11.3 atm
Final volume = V2 = 24.5 L
Explanation:
Given data:
Initial conditions:
Volume V1 = 0.851 L
Temperature T1 = 150.0 K
Moles of He n1 = 0.783
From ideal gas equation:
[tex]PV = nRT\\\\P = \frac{nRT}{V}[/tex]
Substituting the initial V, T and n using R = 0.0821 L.atm/mol-K we get:
[tex]P1 = \frac{0.783*0.0821*150.0}{0.851} = 11.33 atm[/tex]
Final conditions:
T2 = 305 K
P2 = 0.800 atm
Since the number of moles of He will remain constant we can write:
[tex]\frac{P1V1}{T1} = \frac{P2V2}{T2} \\\\V2 = \frac{P1*V1*T2}{T1*P2} = \frac{11.33*0.851*305}{150*0.800} =24.50 L[/tex]
Which of the following is not a organic compound, a -corn oil b -b r o m i n e c -m e t h a n e d- protein
THE BOAT WAS MOORED ON THE BANK WHICH SENTENCE USES THE WORD BANK IN THE SAME CONTEXT AS THE EXAMPLE SENTENCE A a row of cypress trees lined the bank B i deposited my check in the bank C the information was stored in the computer memory bank D the biplane had to bank right
A row of cypress trees lined the bank uses the word bank in the same context as the example sentence. Therefore, the correct option is option A.
What is reference to context?
Context in writing is information that aids readers in correctly interpreting a text's meaning. Context can take many different forms, such as background information or specifics of the events, setting, or period of time in which a work is set. Context is characterised by its ability to make a written work's meaning more clear.
The circumstances whereby a specific piece of writing is produced are referred to as the rhetorical context. It takes into account things like the author's background, the situation or purpose for the writing, as well as the intended readership. A literary work is made richer by context, which also aids in drawing readers fully into the narrative. For both writers and readers, context is crucial. A row of cypress trees lined the bank uses the word bank in the same context as the example sentence.
Therefore, the correct option is option A.
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According to the question the correct answer is: A. a row of cypress trees lined the bank.
The sentence that uses "bank" in the same context as the example is: 'a row of cypress trees lined the bank'. Here, 'bank' refers to the land beside a river or body of water.
In this context, the word "bank" refers to the land alongside a river or body of water, similar to the example sentence where the boat was moored on the bank (the edge of a river).
Which statement best describes the role of the sun in creating wind? Question 2 options: The rays of the sun push the air in all directions, creating wind The radiation of the sun reacts with water over the ocean The energy of the sun heats the land and water surfaces unevenly, creating wind The energy of the sun directly heats the gases in Earth's atmosphere, creating wind
The statement best describes the role of the sun in creating wind is "The energy of the sun heats the land and water surfaces unevenly, creating wind".
What is wind?Wind is the movement of air. Sometimes it is fast and sometimes it is slow.
It happens because of pressure differences and it is caused by temperature differences. It is caused by uneven heating of air due to earth's own rotation.
Given options for the role of sun in creating wind are-
The rays of the sun push the air in all directions, creating wind.
The radiation of the sun reacts with water over the ocean.
The energy of the sun heats the land and water surfaces unevenly, creating wind.
The energy of the sun directly heats the gases in Earth's atmosphere, creating wind.
Therefore, The statement best describes the role of the sun in creating wind is "The energy of the sun heats the land and water surfaces unevenly, creating wind".
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(need 12) project due monday!
what are things we use in everyday life that contain minerals (please list the minerals) <3
Explain the difference between commensalism,parasitism,and mutualism and give examples of each
Answer:
In commensalism one of the organisms benefits while the other receives no benefit but is unharmed. In mutualism, both organisms benefit.
Explanation:
The exact answer on Edg
What pressure will be exerted by 0.650 mol of a gas at 30.0°C if it is contained in a 0.700L vessel? A) 2340kPa B) 2340atm C) 231kPa D) 231atm
What role do triglycerides serve in the human body?
A. Long term storage of energy
B. Enzymes that catalyze reactions
C. Protective coating for outer tissues
D. Information storage
Answer: Long term storage of energy
Explanation: Triglycerides are the fats or basically lipids which are found in the blood.
They are the source of the long term storage of energy.
They are primarily used as storage of the energy because the its oxidation will produce twice as much energy than the oxidation of the carbohydrates.
Thus it is better to store the energy which we take from the food to store as triglyceride.
C6h12(l)+9O2(g)->6CO2(g)+6h2O(g)
Yes, the reaction is balanced as shown
Since the same number of each type of atom occurs on both sides of the arrow, the reaction in the above chemical equation is balanced. Ensuring that the total mass of reactants and products is equal, the law of conservation of mass is respected.
One molecule of [tex]C_6H_{12[/tex] and nine molecules of oxygen (O₂) can be converted into six molecules of carbon dioxide (CO₂) and six molecules of water (H₂O) by varying the coefficients, resulting in a balanced chemical equation.
Missing parts;
Is the reaction; [tex]C_6H_{12}(l)+9O_2(g)- > 6CO_2(g)+6H_2O(g)[/tex] balanced
which of the following equations does not demonstrate the law of conservation of mass
The equation P4 + SO2 → 2P4O10 does not demonstrate the law of conservation of mass.
What is law of conservation of mass?According to law of conservation of matter, "the mass in an isolated system can neither be created nor be destroyed but can be transformed from one form to another."The law of conservation of matter is a general law in chemistry applicable for any system closed to all transfers of matter and energy.According to this law, the mass of a substance or an object never changes over time, no matter how the constituent parts rearrange themselves. To put it in simple words, the mass can neither be created nor be destroyed.In equation P4 + SO2 → 2P4O10, the mass of the reactants are not equal to the mass of the products. Therefore, this equation does not obey the law of conservation of mass.
Hence, we can conclude that option C is the answer.
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The curves represent two possible reaction paths for the decomposition of ammonia, NH3- one can conclude correctly from the graph that the heat of the reaction corresponds to which labeled interval (A,B,C,D,E)
Which formulas shows the relationship between momentum, mass and velocity
Answer:
P=m*s
Explanation:
The linear momentum of a particle of mass m or body m moving with a speed v is defined as the product of the mass times the speed:
P = m * v
Where, as previously stated, P = moment, m is the mass of the body, v is the speed.
The standard units for moment are [tex]kg*\frac{m}{s}[/tex], and moment is always a vector quantity. Its direction and direction coincide with those of the velocity vector.
**CHEMISTRY!! PLEASE HELP ASAP!!**
How many atoms of each element does calcium sulfate, CaSO4, contain?
Calcium = 1 atom, Sulfur = 4 atoms, Oxygen = 4 atoms
Calcium = 1 atom, Sulfur = 1 atom, Oxygen = 4 atoms
Calcium = 4 atoms, Sulfur = 4 atoms, Oxygen = 4 atoms
Calcium = 4 atoms, Sulfur = 1 atoms, Oxygen = 4 atoms
To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. The correct option is option B.
What is atom?Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.
In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron. In the given compound, Calcium = 1 atom, Sulfur = 1 atom, Oxygen = 4 atoms.
Therefore, the correct option is option B among all options.
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What most likely happens when water loses heat?
Because of hydrogen bonding,
Select one:
a. lakes freeze from the bottom up
b. ice is less dense than liquid water
c. ice sinks to the bottom of water
d. liquid water is less dense than ice
Because of hydrogen bond, ice is less denser than liquid water.
What is hydrogen bond?The force of attraction existing between hydrogen atom which is attached to highly electronegative atom in a covalent molecule and more electronegative atom of another covalent molecule is called hydrogen bond. Hydrogen bond is possible mostly in polar covalent molecules where partial charge separation is there.Hydrogen bond is possible mostly in polar covalent molecules where partial charge separation is there. They specifically occur between compounds that contain hydrogen and one or more of the electronegative atoms: oxygen, fluorine, or nitrogen. As this bond existed between partial charges, it is considered to be weak bond than ionic and covalent bonds.When water freezes, the water molecules form a crystalline structure by hydrogen bonds. An ice is less denser than liquid water, because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
Hence, option b is the answer.
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Please help me on #7,9,10
Which of the following threats to biodiversity is a result of over-fishing?
Global Climate Change
Habitat Loss
Human Impact
Invasive Species
Over-fishing is a threat to biodiversity resulting from human impact, specifically through unsustainable resource exploitation. Thus option C) 'Human Impact' is correct.
The correct answer to the question is Human Impact.
Over-fishing is a form of overexploitation, which is one of the main threats to biodiversity resulting from human activity. Over-fishing depletes fish populations faster than they can reproduce, leading to a reduction in biodiversity and the disruption of marine ecosystems.While global climate change and habitat loss are significant threats to biodiversity, they are typically not the direct result of over-fishing. Instead, over-fishing directly exemplifies how human impact on the environment can lead to unsustainable resource use and endanger species.
Complete question: Which of the following threats to biodiversity is a result of over-fishing?
A)Global Climate Change
B)Habitat Loss
C)Human Impact
D)Invasive Species
Correct option: C) Human impact
The automatic switch found in a electric kettle is consideres an energy saving device. Jow does the automatic switch saves energy?
The automatic switch in an electric kettle saves energy by cutting off power when the water inside boils. By reducing the time over which power is consumed, the automatic switch prevents the kettle from wasting energy.
Explanation:The automatic switch in an electric kettle saves energy by shutting off power to the kettle once the water inside reaches its boiling point. This prevents the kettle from consuming unnecessary power and thereby wastefully heating water that's already boiling. Without the automatic switch, the kettle would continue to draw electricity, converting it to heat, even after the water is boiling. This automation reduces the time over which power is consumed, leading to fewer units of energy used.
An example of this can be likened to a light bulb that is turned off when not in use. Even if it consumes high power, the light bulb does not waste energy because it is only in operation for the necessary period, wherein the automatic switch in the kettle plays the role of a person switching off the light bulb.
So, it is through this method of selectively controlling the 'on' state of the electrical device, the electric kettle in this case, significant energy savings can be realized over time.
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Heat energy can be produced in many ways. Which of the following sources can produce heat energy? A. the Sun B. electricity C. burning wood D. all of these
The answer is D. all of these
When part of earths surface is tilted towards the sun what does it cause
REDOX WS1
Identify the species being oxidized and reduced in each of the following reactions
a. Cr+1 + Sn+4 Cr+3 + Sn+2
b. 3Hg+2 + 2Fe 3Hg + 2Fe+3
c. 2As + 3Cl2 AsCl3
d. NaBr + Cl2 NaCl + Br2
e. Fe2O3 + 3CO 2Fe + 3CO2
If Kp = 0.15, which statement is true of the reaction mixture before any reaction occurs?
how many moles are in 1.5 x 10^20 molecules of NH3?
.249 moles are in 1.5 x 10^20 molecules of [tex]NH_3[/tex].
What is a mole?A mole is a very important unit of measurement that chemists use. A mole of something means you have 602,214,076,000,000,000,000,000 of that thing, like how having a dozen eggs means you have twelve eggs.
To solve this equation, you will use Avogadro's constant (6.02 x 10^23) to convert the number of molecules to moles. we need to divide the molecules given by this constant:
[tex]\frac{1.50 X 10^2^3}{6.02 X 10^2^3}[/tex] = .249
So, the answer is .249 moles.
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Which term names the underground region between where water saturates pores and where it does not? A. water zone B. water table C. aqua zone D. porous zone
Water table is the underground region between where water saturates pores and where it does not.
Answer: B
Explanation
It is known that water is present below the ground. The rocky terrain inside the ground contains water and the water will be filled in the pores between the rocks.
The water filled in the saturated region below the ground is separated from the unsaturated region which is the region above the ground by a surface termed as water table.
The unsaturated region is the soil above the ground and the plants get water from this region.
The water is present in unsaturated region occupy between the pores of rocks and soils but they are loosely filled so that plants can extract water from them.
Then below the ground water table region will be present and below the water table the saturated water region is present.
So water table is the region dividing the saturated and unsaturated water pore regions.
What type of energy transformation takes place during cellular respiration? Use complete sentences to explain how energy is conserved during cellular respiration.
In this exercise we will have to explain the transformation of energy in cellular respiration, as:
The type of energy transformation takes is chemical energy and the energy is conserved because The ATP molecule stores energy from cellular respiration and photosynthesis for immediate consumption.
Recalling how cellular respiration works we have:
Cellular respiration is a process by which organisms obtain energy to perform the most diverse activities. Cellular respiration occurs in mitochondria, in the presence of oxygen, and is divided into three steps: glycolysis, the citric acid cycle (or Krebs cycle) and oxidative phosphorylation.How is energy stored in ATP?Energy is stored in the bonds between phosphates. The molecule acts as a cellular currency, that is, it is a convenient form of energy transformation. The ATP molecule stores energy from cellular respiration and photosynthesis for immediate consumption.
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During cellular respiration, chemical energy in glucose is converted to ATP, conserving energy efficiently across glycolysis, the Krebs cycle, and the electron transport chain. Energy conservation ensures no net loss of matter or energy, illustrating a fundamental principle of biology where substances can change form but are never lost.
Explanation:Energy Transformation in Cellular RespirationDuring cellular respiration, the type of energy transformation that takes place involves converting the chemical energy stored in glucose into a form that cells can use, primarily adenosine triphosphate (ATP). This process begins with glucose and oxygen being transformed into carbon dioxide, water, and energy. The conservation of energy during cellular respiration occurs through a series of biochemical reactions that extract energy from glucose and transfer it to ATP, which cells utilize for various functions. The overall process encompasses three main stages: glycolysis, the Krebs cycle (or citric acid cycle), and the electron transport chain.
Conservation of Energy in Cellular RespirationIn cellular respiration, there is no net loss of matter or energy as they are both conserved. Glucose, upon oxidation, releases its energy in a controlled manner through several steps. This released energy is captured in the form of high-energy phosphate bonds in ATP. ATP then serves as a versatile energy currency for the cell, enabling it to perform various tasks such as muscular contractions, nerve impulses, and biosynthesis. The efficiency of this process means energy is conserved within biological systems, maintaining life processes without waste.
Phases of Cellular RespirationThe four phases of cellular respiration are:
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