UNIT4-physical and chemical change

Question 1

What is the scientific term for bubbles?

Answer 1

Effervescence

Question 2

What is precipitation?

Answer 2

When a solid forms after an reaction.

Question 3

qualities

Answer 3

Colour
temperature
density
volume
solubility
boiling point
lustrous
sonorous
conducter of heat or electricity
ductility
malleability

Question 4

What is a chemical change?

Answer 4

Chemical change is when a new element or compound is formed. This happens during a chemical reaction.

Question 5

What is a product?

Answer 5

The new element or compound that has formed after a reaction.

Question 6

What is physical change?

Answer 6

When there is a change in physical properties.