Chemical Reactions Flashcard

Front

What are the two key characteristics that groups of atoms can vary in?

Back

type, number

Front

What does the image in the box represent?

Back

repeating group of atoms

Front

What are letters and numbers that show the types and number of atoms in a substance called?

Back

chemical formula

Front

If two samples are made of the same repeating groups of atoms, what can be said about their other properties?

Back

The other properties will be the same because the repeating groups of atoms that make up the two samples are the same.

Front

What are the tiny pieces that all matter is made of?

Back

atoms

Front

What is a group of two or more atoms bonded together called?

Back

molecule

Front

What is the process called when substances combine to form new substances?

Back

chemical reaction

Front

What is the term for the starting materials in a chemical reaction?

Back

reactants

Front

What do we call the substances formed as a result of a chemical reaction?

Back

products

Front

What is the law that states that matter cannot be created or destroyed in a chemical reaction?

Back

law of conservation of mass