Reference no: EM133253885

1. What is the law of conservation of mass? How do you know if a chemical equation is in accord with this law?

2. Define and give an example in the form of a balanced equation of (a) a combination reaction (b) decomposition reaction © replacement reaction (d) redox reactions

3. Balance the equation

H2(g) +N2(g) →NH3(g)

C3H8(g) + O2)g) → CO2 (g) +H2O(g)

Ca(OH)2(aq) +Al2(SO4)3(aq) →CaSO4(aq) + Al(OH)3

4. Write the balanced equations for

a) Silver (s) + sulfur(g) → silver sulfide(s)

b) Aluminum (s) + iron(III) oxide(s) → aluminum oxide(s) + iron(s)

c) Sodium chloride(aq) + silver nitrate (aq) →sodium nitrate (aq) + silver chloride