Counting Atoms

Front

What is the chemical formula for glucose?

Back

C6H12O6

Front

How many total atoms are in H2SO4?

Back

7

Front

What does it mean when a new substance is produced in a chemical reaction?

Back

It indicates that a chemical change has occurred.

Front

How many hydrogen atoms are in C6H12O6?

Back

12

Front

In the compound H2SO4, how many oxygen atoms are there compared to hydrogen atoms?

Back

There are twice as many oxygen atoms as hydrogen atoms.

Front

What is the significance of subscripts in a chemical formula?

Back

Subscripts indicate the number of atoms of each element in a molecule.

Front

What is the total number of atoms in C3H5(NO3)3?

Back

C = 3, H = 5, N = 3, O = 9 (Total = 20 atoms)

Front

What is a chemical reaction?

Back

A process that leads to the transformation of one set of chemical substances to another.

Front

What is the role of oxygen in combustion reactions?

Back

Oxygen reacts with substances to produce heat and light, often forming new products.

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 together.