Elements and compounds

Front

Which of the following represents an element? H₂O, NaCl, H₂, CaCO₃

Back

H₂

Front

Which of the following is not a compound? Options: HCl, NaCl, Cl, CO₂

Back

Cl

Front

Salt has a chemical formula of NaCl. Salt is a...

Back

Compound

Front

What cannot be broken down into other substances?

Back

Element

Front

What is made up of two or more elements that are chemically combined?

Back

Compound

Front

How many elements are represented in the compound Na₂CO₃?

Back

3

Front

A combination of substances that are not chemically combined is called a(n)____________.

Back

mixture

Front

The smallest particle of matter that makes up an element and a compound?

Back

Atom

Front

Hydrogen Peroxide bubbling on your cut is an example of a:

Back

Chemical Change

Front

Which statement best describes an element?

Back

pure, made of only one thing