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scoundrel [369]
3 years ago
7

What is a main difference between a mixture and a pure substance?

Chemistry
2 answers:
vlada-n [284]3 years ago
5 0

A mixture can vary in composition, but a pure substance cannot. think of salad dressing in a bottle and then think of pure water.

alex41 [277]3 years ago
4 0
The answer is to this question is D
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Which is longer, the carbon-oxygen single bond in a carboxylic acid or the carbon-oxygen bond in an alcohol?
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How many grams of calcium chloride will be produced when 29.0 g of calcium carbonate is combined with 15.0 g of hydrochloric aci
horsena [70]

Answer:

22.7 g of CaCl₂ are produced in the reaction

Explanation:

This is the reaction:

CaCO₃ +  2HCl  →  CaCl₂  + CO₂  +  H₂O

Now, let's determine the limiting reactant.

Let's divide the mass between the molar mass, to find out moles of each reactant.

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3 years ago
Sue is building a bike with a metal frame in a warm, sunny area. Which material would be best for Sue to use for the grips on th
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The word equation is therefore:

 1 mole of propane combines with 5 moles of oxygen gas to produce 3 mole of carbon dioxide and 4 moles of water.

For such a combustion reaction, carbon dioxide and water are produced in the process.

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