Placing sodium metal into water creates a bright light and a lot of heat – an explosion. Sodium metal disappears during this explosion. Is this a chemical change?

What are the major products produced in the combustion of c10h22 under the following conditions? write balanced chemical equations for each. a. an excess of oxygen b. a slightly limited oxygen supply c. a very limited supply of oxygen d. the compound is burned in air

Identify and describe the three ways that mutations affect organisms.

If you burn 10 kilograms of wood in a fire (combustion) what is the weight of the products after the fire has finished burning the wood?