Question

A pure sample of carbon dioxide gas was obtained by strongly heating calcium chloride. What is the ratio by mass of the elements present in the gas?

Answer 1

Answer:

as cacl2+O2=CO2 +cl2

so carbon and its compounds are used as a few hours week because they burn in a releasing lot of heat energy saturated hydrocarbon generally burnt in air with blue and non sooty flame and saturated hydrocarbon burns in air with yellow suit frame because percentage of carbon is higher than saturated hydrocarbon which does not get completely oxidized in their alcohol can be prevented to carboxylic acid in presence of oxidising agent alkaline potassium permanganate for acid potassium dichromate unsaturated hydrocarbon and hydrogen in the presence of catalyst palladium on nikal vegetable oils are converted into vegetable hi using this process it is also the hydrogenation of vegetable oils.when a metal is exposed to moisture in air acid for sometime a layer of hydrated oxide is formed which becomes the metal and has metal is said to be cold sore in this carbon is a corroded .chemical reaction can be represented by chemical equation it involves uses of symbols of elements or chemical formula of reactant and product with mention of physical state the necessary conditions such as atmosphere pressure for any catalyst should be written or Arrow between resistance and product of conservation of mass mass can neither be created nor be destroyed in a chemical reaction so number of elements involving chemical reactions to trim a sum at reaction product state.the process in which news of stanzas be new properties are formed from one or more substances called chemical reaction the substances which take part in a reaction are called reactance the substance which are formed in a chemical reaction are called products for example digestion of food aspiration and rusting of iron burning of magnesium ribbon former formation of curd chemical reaction involved change in state change in colour change in temperature evolution of gas

Answer 2

So the element carbon and oxygen are present in ratio of 3:8 by mass.