C3.1.3 - Conservation Of Mass Flashcards Preview

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Flashcards in C3.1.3 - Conservation Of Mass Deck (8)
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1

Can atoms be created or destroyed by chemical reactions?

No

2

What is the law of conservation mass?

The total mass must remain the same during the reaction

3

How can you investigate law of conservation of mass?

Carrying out a reaction in a closed system

4

What is a closed system?

A container in which no substances can leave or enter during a reaction

5

Give an example of a closed system.

A beaker carrying a substance that is not gas

6

What is a non-enclosed reaction?

A reaction where substances can leave or enter the reaction

7

Give an example of a non-enclosed reaction.

Creating a gas in a beaker with no lid

8

Why might the mass seem to change in a reaction?

Some of the substances may have left or entered the reaction