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Introduction to Chemical Reactions

Posljednje ažuriranje over 5 years ago

5

1

1

1

Pitanje 3

3.

New products are formed when a chemical reaction takes place.

Tačno

Netačno

1

1

Pitanje 1

1.

Why did the pocket rocket explode during the demonstration at the beginning of today's lesson?

A build up of water

A build up of vitamin C

A build up of gas (carbon dioxide)

Pitanje 2

2.

When the vitamin C tablet was dropped in the water, how did you know a reaction was occuring?

Bubbles began to form

The vitamin C tablet was dissolving in the water

Gas was being produced

All of the above

Pitanje 4

4.

Choose the correct words that correctly complete the above definition.

products, reactants

elements, reactants

elements, materials

Pitanje 5

5.

Acids + Carbonates = Salt + Water + _____________________.