Question 5 (4 points)

a reaction begins with 15 grams of reactants. how many grams of product will in the

new substance after the reaction?

Explanation:

According to law of conservation of mass, mass can neither be created nor it can be destroyed. It can only be changed from one form to another.

Therefore, when 15 grams of reactants will combine together to result in the formation of a new compound then mass of the new substance formed will also be 15 grams.

Because, mass of reactants has converted into the mass of product.

Thus, we can conclude that 15 grams of product will in the  new substance after the reaction.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )