Chemistry

Question 1

Cl2 (g) +2 KBr (aq) –> Br2 (g) +2KCl (aq)

What is (aq) in the above equation

Answer 1

Aqueous

Question 1

Cl2 (g) +2 KBr (aq) –> Br2 (g) +2KCl (aq)

What is (g) in the above equation

Answer 1

Gas

Question 2

Cl2 (g) +2 KBr (aq) –> Br2 (g) +2KCl (aq)

Why is it Cl2 and not Cl

Answer 2

As Cl2 is a halogen, it is a diatomic molecule, thus it needs to form with another Chloride molecule to form Chlorine

Question 3

How many oxides are there in

Sulfur Monoxide

Answer 3

1

Question 4

How many oxides are there in

Sulfur dioxide

Answer 4

2

Question 5

How many oxides are there in

Sulfur trioxide

Answer 5

3

Question 6

what is the meaning of estimate

Answer 6

估计

Question 7

what is the meaning of predict

Answer 7

预测

Question 8

List the three physical states

Answer 8

gas, liquid and solid

Question 9

explain boiling point

Answer 9

Boiling point is the temperature when a liquid turns into a gas.

Question 10

explain melting point

Answer 10

Melting point is the temperature when a solid turns into a liquid.