Group 2 Alkaline Earth Metals

Question 1

What are the elements in group 2 called?

Answer 1

The alkaline earth metals

Question 2

What are some observations when strontium is added to water?

Answer 2

• vigorous reaction
• effervescence
• hydrogen gas created

Question 3

What are some observations when calcium is added to water?

Answer 3

• effervescence
• vigorous reaction
• white precipitate (calcium hydroxide)

Question 4

What are some observations when magnesium is added to water?

Answer 4

• nothing

Question 5

What is the trend in reactivity of group 2 metals?

Answer 5

The reactions become more vigorous as you go down the group.

Question 6

Describe the relative reactivity between the Alkali metals vs the Alkaline Earth metals.

Answer 6

Group 1 and 2’s relative reactivity are both quite vigorous reactions, however the difference between them is that Alkaline Earth metals are less reactive than the Alkali metals.

Question 7

Complete the word equation below, including state symbols:
magnesium + water -> ……………….. + ……….

Answer 7

magnesium (s) + water (l) -> magnesium hydroxide (aq) + hydrogen (g)

Question 8

Complete the word equation below, including state symbols:
calcium + water -> ……………….. + ……….

Answer 8

calcium (s) + water (l) -> calcium hydroxide (aq) + hydrogen (g)

Question 9

Complete the word equation below, including state symbols:
strontium + water -> ……………….. + ……….

Answer 9

strontium (s) + water (l) -> strontium hydroxide (aq) + hydrogen (g)

Question 10

What are the first three Alkaline Earth metals in order?
Bonus: give their symbols as well

Answer 10

Magnesium (Mg)
Calcium (Ca)
Strontium (Sr)