Basic Chemistry

Front

How many atoms of carbon (C) are in C6H12O6?

Back

6

Front

The blue numbers in a chemical formula represent _______

Back

Subscripts

Front

How many atoms of carbon are present in a molecule of bleaching powder?

Back

0

Front

The substances on the left side of the arrow in a chemical equation are called ______

Back

reactants

Front

Which of the following is a compound: Na, O2, C, CO2?

Back

CO2

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What are products in a chemical reaction?

Back

Substances formed as a result of a chemical reaction.

Front

Define a molecule.

Back

A group of two or more atoms bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded.

Front

What does the coefficient in a chemical equation indicate?

Back

The number of molecules or moles of a substance.