Metals and oxygen/water, Displacement reactions

Question 1

Metal + acid makes

Answer 1

Salt + hydrogen

Question 2

Metal + water gives you

Answer 2

• metal hydroxide + hydrogen, if the metal is very reactive

- metal oxide + hydrogen, if it is not very reactive

Question 3

Metal + oxygen

Answer 3

Metal oxide

Question 4

Test for hydrogen

Answer 4

• a lighted splint makes a squeaky pop sound

Question 5

Test for oxygen

Answer 5

• a glowing splint will re ignite

Question 6

Magnesium + oxygen makes

Answer 6

Magnesium oxide

Question 7

State symbol for solid

Answer 7

S

Question 8

State symbol for gas

Answer 8

G

Question 9

State symbol for liquid

Answer 9

L

Question 10

Aq is which state symbol and definition

Answer 10

• aqueous

- substance that is dissolved in water

Question 11

Patterns with reactivity in metals with acids and oxygen

Answer 11

• vigorous reaction in dilute acids tend to make vigorous reactions with oxygen as well
• metals that do not react in dilute acid, do not react with oxygen

Question 12

Very reactive metals in group 1 and 2 react with water how

Answer 12

• vigorously

- make metals hydroxide & hydrogen

Question 13

Why do some metal give oxide and hydrogen when reacting with water

Answer 13

-if they are less reactive then they produce a metal oxide + hydrogen

Question 14

Why do some metal have to react with steam

Answer 14

-as they are less reactive the steam gets the chemical reaction going

Question 15

Displacement reaction

Answer 15

-where a more reactive metal will displace (push out) a less reactive metal from its compound

Question 16

Example of a displacement reaction:

Magnesium + copper oxide ->

Answer 16

Copper + magnesium oxide

Question 17

Order of reactivity

-starting from most reactive

Answer 17

potassium
Sodium
Lithium
Calcium
Magnesium 
Aluminium
Carbon
Zinc
Iron
Tin
Lead
Hydrogen
Copper
Silver
Gold
Platinum