3 years ago

3. Are quartz and coal minerals or only naturally occurring substances?

Chemistry

1 answer:

klasskru [66]3 years ago

6 0

Answer:

minerals

Explanation:

coal is made from decomposing matter

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Answer:

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Explanation:

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3 years ago

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professor190 [17]

0.74 Kcal/min x 1000 cal/60 s

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1 year ago

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Calculate the mass of CO2 that can be produced if the reaction of 54.0 g of propane and sufficient oxygen has a 64.0% yield.

Oduvanchick [21]

Answer:

103.9 g

Explanation:

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First we convert 54.0 g of propane (C₃H₈) into moles, using its molar mass:

54.0 g ÷ 44 g/mol = 1.23 mol C₃H₈

Then we convert 1.23 moles of C₃H₈ into moles of CO₂, using the stoichiometric coefficients:

1.23 mol C₃H₈ * $\frac{3molCO_2}{1molC_3H_8}$ = 3.69 mol CO₂

We convert 3.69 moles of CO₂ into grams, using its molar mass:

3.69 mol CO₂ * 44 g/mol = 162.36 g

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2 years ago

Calculate mass of hydrogen chloride produced from 11.3g H and 11.3g Cl. H2 + Cl2 -> 2HCl

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Answer:

22.6According to the law of conservation of mass, the total mass of reactants should be equal to the total mass of products. Here, total mass of reactants= 11.3+11.3=22.6

•

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3 years ago