Front

A candle wick burning is an example of a _________________________

Back

chemical reaction

Front

In a ___________change, a substance changes into a different substance.

Back

Chemical

Front

Which of the following IS a physical change?

• Getting a haircut
• Rusty metal
• A compound
• Sour milk

Back

Getting a haircut

Front

the starting materials in a chemical reaction

Back

Reactants

Front

The substances listed on the right side of a chemical equation are the

Back

Products

Front

The smallest particle of an element; made of electrons, protons, and neutrons

Back

Atoms

Front

The process by which one or more substances change to produce one or more different substances

Back

Chemical Reaction

Front

A chemical reaction or process that releases heat.

Back

Exothermic

Front

In the equation, 2Mg + O₂ ---> 2MgO, which are the reactants?

Back

Mg and O

Front

In which of these compounds are there twice as many oxygen atoms as hydrogen atoms? Options: H₃PO₄, H₂SO₄, HCIO₃, H₂0

Back

H₂SO₄