Balanced equation:
Al2(SO4)3 +3 Ca(OH)2 ---> 2Al(OH)3 + 3CaSO4?
Check:
Left side: Al:2; [SO4]: 3; Ca: 3; [OH] 3*2 = 6
Rigth side: Al: 2; [OH]: 2*3 = 6; Ca:3; [SO4]: 3
Mole ratio of Ca(OH)2 : Al (OH)3
3 moles of Ca(OH)2: 2moles of Al(OH)3 = 3:2
Answer: Option B.
Answer:
K2CO3(aq) + H2O(l)
Explanation:
Balance the equation
2KOH(aq) + CO2(g) ------ K2CO3(aq) + H2O(l)
Answer:
1280J are required.
Explanation:
Heat of fusion is defined as the amount of heat required to change its state from liquid to solid at its melting point at constant pressure.
As heat of fusion of gold is 64J/g, there are required 64J to melt 1g of gold at its melting point. The energy required to melt 20g is:
20g * (64J/g) =
1280J are required
Tell the teacher, do NOT clean it up yourself.
