Metals and Water

Question 1

Equation for Water and metal

Answer 1

Metal + water → metal hydroxide + hydrogen

Question 2

Group 1 metals

Answer 2

React vigorously with water

Question 3

which elements reacts quickly with cold water?

Answer 3

metals on the far left of the periodic table( so magnesium does not react with cold wateer, i reacts with hot water)

Question 4

write word equation for reaction between sodium and water?

Answer 4

sodium + water -> sodium hydroxide + hydrogen

Question 5

what is the test for hydrogen gas?

Answer 5

burns with squicky pop

Question 6

Name three metals that are too reactive to use for building bridges?

Answer 6

lithium
sodium
potassium

Question 7

how sodium should be kept? why?

Answer 7

under oil

to prevent the reaction with oxygen in air

Question 8

which metal from group 1 starts to burn when reacts with water?

Answer 8

potassium

Question 9

Group-1 metals

Answer 9

Potassium, lithium, sodium

Question 10

Reactivity of metals and water (steam)

Answer 10

-Calcium and metals above it in the reactivity series react
vigorously with cold water.
-Copper and metals below it in the reactivity series do not react with cold water or steam.
-The metals between calcium and copper react with steam but not cold water.

Question 11

What is the reactivity series?

Answer 11

lists metals in order of reactivity towards other substances the higher a metal is the more reactive it is (more easily it form positive ions)