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stiv31 [10]
3 years ago
15

Explain what happens to energy and matter during a chemical reaction.

Chemistry
1 answer:
AlekseyPX3 years ago
4 0
According to law of conservation of matter and energy, amount of both of them will remain same

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Explain why oil is called a fossil fuel.
Dmitrij [34]

Oil is referred to as a fossil fuel because it is derived from fossils.

Fossil fuels are the result of dinosaur remains being put under pressure for millions of years.

3 0
3 years ago
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28.7 l of propane, c3h8, are consumed in a combustion reaction. how many grams of water are produced?
lora16 [44]
The chemical reaction would be:

C3H8 + 5O2 = 3CO2 + 4H2O

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28.7 L C3H8 ( 1 mol / 22.41 L ) ( 4 mol H2O / 1 mol C3H8 ) ( 18.02 g / mol ) = 92.31 g H2O produced

Hope this answers the question.
7 0
3 years ago
Which law relates to the ideal gas law?​
ella [17]

Answer:

equation (4.16) depends on Boyle's law and Charles' law. The above relates the adjustment in perfect gas volume to the progressions in winning weight and temperature, separately. Moreover, equation (4.16) is alluded to as the condition of state for a perfect gas.

hope it helps:))

4 0
3 years ago
Circle only those of the following reactions that are redox reactions:
Citrus2011 [14]

Answer: options B,D and F

Explanation:

Since redox reactions are those which involves both oxidation and reduction

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F, carbon gets oxidized and Oxygen gets reduced

In g, there is no change in oxidation no of s in both product and Reactants is same +4

Similarly in the case of Ag and Mg.

5 0
3 years ago
What is the density of an unknown substance that has a mass of 30 g and a volume of 10mL? a. 300 g/mL b. 30 g/mL c.3 g/mL d.1 g/
balu736 [363]

Answer:

the answer is 3g/cm3 I am pretty sure

6 0
2 years ago
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