A solid white substance A is heated strongly in the absence of air. It decomposes to form a new white substance B and a gas C. T

Question

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A solid white substance A is heated strongly in the absence of air. It decomposes to form a new white substance B and a gas C. T

he gas has exactly the same properties as the product obtained when carbon is burned in an excess of oxygen. Based on these observations, can we determine whether solids A and B and the gas C are elements or compounds? Explain your conclusions for each substance.

Chemistry

1 answer:

Nikolay [14] · Answer 1 · 2022-01-25T21:43:25+03:00

Explanation:

The substance which is white in color is heated which give further different products which means that A is composed of different elements and thus A is a combination of elements and is a compound.

The product obtained when carbon is burnt in excess of air is carbon dioxide gas. Since, it is mentioned in the question that gas C has exactly the same properties as carbon dioxide which also suggests that C is also definitely a compound.

It is not very sure about B, whether it is a compound or a element as there is not much information available for B. But, B is likely to be a compound because a very few elements have white color but still it's not sure.