Question

Which is the correct formula of calicium phosphate?

2 points

Ca3(PO4)2

Ca2(PO4)3

Ca3(PO4)4

Ca(PO4)2

Clear selection

2.A chemical equation in which number of atoms of each elements is same on the sides of reactants and products is called........

2 points

Unbalanced equation

Balanced equatioin

Reactants

Products

3.Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s), what type of chemical reaction ?

2 points

decomposition reaction

Combination reaction

Metal displacement reaction

Double displacement reaction

4. When a decomposition reaction is carried out by heating, it is called.......

2 points

Thermal decomposition

Displacement reaction

Addition reaction

None of this



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Answer 1

Answer:

1. Ca3(po4)2

2.Balanced equation

3.metal displacement reaction

4.thermal decomposition

Answer 2

1)Calcium phosphate=Ca3(PO4)2.

2) Balanced equation.

3) Metal displacement reaction.

4) Thermal decomposition.