Conservation Of Mass

Question 1

What happens in a chemical reaction?

Answer 1

Mass is always conserved

Question 2

What happens if mass changes

Answer 2

There is usually a gas involved

Question 3

What happens when mass increases?

Answer 3

• At least 1 reactant is a has found in the air
• products are solid liquid or aqueous
• can’t measure has mass because it’s floating in the air
• when gas reacts it gets trapped in the vessel thus mass increase

Question 4

What happens when there is a mass decrease?

Answer 4

• reactants solid liquid or aqueous
• products gas
• vessel not closed gas escapes and mass decreases