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svlad2 [7]
3 years ago
6

Question 16(Multiple Choice Worth 5 points)

Chemistry
1 answer:
stiks02 [169]3 years ago
8 0

Answer:

It is equal to the total mass of the products.

Explanation:

Hope this helps :)

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C) Fe(s) + S(s) →FeS(s)

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It is necessary to develop alternative sources of energy because____.
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scientists are uncertain of how long the resources will last.

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What happens to the luminosity of stars in the main sequence as temperature decreases
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3 0
3 years ago
What mass of ch4 is consumed when 587. 9 kj of energy is evolved from the combustion of a mixture of ch4(g) and o2(g)? show the
katen-ka-za [31]

Mass of CH₄ is 10.591 g.

The molar mass is a crucial characteristic of the material that is independent of sample size. The coherent unit of molar mass in the International System of Units (SI) is kg/mol. However, molar masses are usually generally given in g/mol due to historical considerations.

A chemical compound's molar mass is calculated by dividing its mass by the number of moles of the substance that make up the sample.

Δg = 587.9 KJ

CH₄ Molar mass = 16.05 g/mol

mol CH₄ = Δg / ΔH°

              = 587.9 / 890.3 KJ/ mol

              = 0.6603 mol CH₄

Mass CH₄ = 0.6603 × 16.05 g/mol

                = 10.591 g

Therefore, the mass of  CH₄ is 10.591 g.

Learn more about molar mass here:

brainly.com/question/24236159

#SPJ4

8 0
1 year ago
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