Metals and their uses

Question 1

What would be the word equation for tungsten and chlorine ?

Answer 1

Tungsten + Chlorine = Tungsten Chloride

Question 2

What is more reactive calcium or gold ?

Answer 2

Calcium

Question 3

What is a catalyst ?

Answer 3

Something that speed up reaction without being used up

Question 4

What is the word equation for corrosion ?

Answer 4

Metal + Oxygen = Metal oxide

Question 5

What is the word equation for rust in iron ?

Answer 5

Iron + Water + Oxygen = Iron Hydroxide

Question 6

What is used to stop iron from rusting ?

Answer 6

Paint less reactive metals plastic

Question 7

What is the word equation for metal reacting with water and what is an example ?

Answer 7

Metal + Water = Metal Hydroxide + Hydrogen

Sodium + Water = Sodium Hydroxide + Hydrogen

Question 8

What is the word equation for a metal reacting with an acid ?

Answer 8

Metal + Acid = Salt + Hydrogen

Question 9

The name of the salt depends on the acid what would these acids be called if Sodium reacted with
Hydrochloric acid
Sulfuric acid
Nitric acid

Answer 9

Sodium Chloride
Sodium Sulphate
Sodium Nitrate

Question 10

What is an alloy ?

Answer 10

An alloy is a mixture of a metal then other elements they don’t have to be another metal