Chemical and Physical Changes

Front

A green powder is heated & a gas is given off while it turns to a black solid. This describes

Back

Chemical Change

Front

A Chemical Change is also known as what?

Back

Chemical Reaction

Front

Which of the following could indicate that a chemical change took place? Change in color, Production of Energy, Formation of Gas, All are correct

Back

All are correct

Front

The formation of a solid when two liquids combine is called?

Back

Precipitate

Front

Difference between a Physical change and a Chemical change.

Back

All are correct: Physical change is only a change to the outside appearance. Chemical change is when matter is changed into something new. Atoms are rearranged in chemical changes & not in physical.

Front

What does a chemical change result in?

Back

A change in the way atoms are bonded to each other.

Front

Which type of change is most often easily reversed?

Back

Physical

Front

How did the rust form on the steel car Alex saw in an abandoned lot?

Back

Oxygen in the air chemically combined with the iron in the steel to form rust.

Front

Identify what type of change happening in the picture below...

Back

Physical Change

Front

Identify what type of change happening in the picture below...
Options: Chemical Change, Physical Change, Endothermic Reaction, Exothermic Reaction

Back

Chemical Change