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tester [92]
3 years ago
14

What is the boyle's law

Chemistry
1 answer:
zloy xaker [14]3 years ago
4 0

Answer:

states that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature;(i.e., in equation form, pv = k, a constant.)

Explanation:

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Which of these activities might involve a chemist?
goldfiish [28.3K]
B - A chemist might determine the fat content in a candy bar. 

1) Fatty acids stored in candy bars are (in fact) composed of chemical substances.

2) Choice A makes no sense. This activity belongs in the Biology field. Or if you're an animal activist, you might be interested in undertaking this as a hobby.

 3) Choice C is absurd because either you're a Physicist who enjoys an occupation such as this, or you're just plain crazy.

4) Choice D is preposterous because either you're a Meteorologist, or a Geoscientist. Both of which have nothing to do with chemistry. 
5 0
3 years ago
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QUICK PLEASE HELP!!!during a combustion reaction, 5.00 grams of oxygen reacted with 5.00 grams of CH4.
stealth61 [152]
The balanced chemical reaction is:

CH4 + 2O2 —> CO2 + 2H2O

You need to convert mass to moles (divide by molar mass):

CH4 moles = 5 / 16 = 0.31 mol
O2 moles = 5 / 32 = 0.16 mol

To figure out which reactant is limiting, divide the actual moles by the corresponding coefficient in the reaction:

CH4: 0.31 / 1 = 0.31
O2: 0.16 / 2 = 0.08

O2 is the lower number, so it is the limiting reactant. From the reaction we know it takes 2 moles of O2 to react with each mole of CH4. Therefore, for however many moles of O2 we actually have, half as many moles of CH4 will react. Since we have 0.16 mol of O2, only 0.08 mol of CH4 will react, leaving behind 0.31 - 0.08 = 0.23 mol of CH4.

Now convert back to mass (multiply by molar mass) to find the mass of CH4 remaining:

0.23 x 16 = 3.68g

The closest answer is B.
6 0
3 years ago
When does the chemical system reach dynamic equilibrium?
Oksana_A [137]
Dynamic equilibrium of a chemical system is reached when the rate of forward reaction equals to that of the the backward reaction.
7 0
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Tcecarenko [31]
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∴ if moles of Hydrogen = 6.34 mol 
then moles of nitogen = 6.34 mol ÷ 3
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∴ 2.11 moles (OPTION 2) of Nitrogen is needed to convert 6.34 moles of Hydrogen into ammonia. 
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solmaris [256]
I believe it is false i just finished my chemistry class
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