When baking soda, sodium bicarbonate is heated it decompose and produce; carbon dioxide gas, sodium carbonate and water. Write a balanced equation for the decomposition of the compound.

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

The answer for #3 is c but i don't know why

Drug abuse will not lead to physical and psychological dependence. true or false ?