Inorganic chemistry and the periodic table; group 2 reactions

Question 1

when group 2 metals react what happens>

Answer 1

2+ ions are formed because the metal loose the 2 electrons.

Question 2

provide an example equation of a group 2 metal loosing electrons

Answer 2

M–> M 2+ + 2e-

Question 3

what do group 2 metals react with?

Answer 3

water OR oxygen to form bases

Question 4

whats the word equation for a metal reacting with water?

Answer 4

metal + water–> metal hydroxide + hydrogen

Question 5

whats the word equation for a metal reacting with oxygen?

Answer 5

metal + oxygen –> metal oxide.

Question 6

what is an example of a metal reacting with water?

Answer 6

2ca+ 2H2O–> Ca(OH)2 + H2

Question 7

what is an example of metal reacting with oxygen?

Answer 7

2Ca+ O2–> 2CaO

Question 8

how does reactivity change going down group 2 when reacting with water?

Answer 8

becomes more reactive
-first element doesnt react and magnesium reacts slowly.

Question 9

why does reactivity increase down the group

Answer 9

the shells increase–>electrons are more further away + more easily removed –>weaker attraction= more reactive

Question 10

what solid is produced when a metal reacts with oxygen?

Answer 10

a white solid

Question 11

eh

Question 12

w

what is another way to form metal hydroxides by itself?

Answer 12

react an oxide with water

Question 13

what does it mean if a hydroxide is more solouble?

Answer 13

-hydroxide is more solouble
-more alkaline=more oH- ions

Question 14

what happens when oxides react with water

Answer 14

-forms hydroxide which dissociates to form OH- ions
-soloution is more alkaline if group2 is more reactive -as hydorxide ions dissolve more= more solouble

Question 15

what a 4th way group 2 metals can react ?

Answer 15

can react to NEUTRALISE acids
-can react hydroixide or oxide with eg hcl
-to form metal chloride and water