Question

Classify the compounds as acids, bases, or salts. Acid Base Salt H2C2O4,LiCl,HCl,BaF2,LiOH,(NH4)2SO4,Ba(OH)2,HCiO4 Write a balanced equation for the combination of magnesium and oxygen to form magnesium oxide, MgO. balanced equation: Complete and balance the equation for the single-displacement reaction. Phases are optional. balanced equation: Write and balance the equation for the complete combustion of heptane, C7H16. Phase symbols and energy changes are optional. equation:

Answer 1

Acids:

They get completely ionised in water to give one or more proton per acid molecule. When acid dissociates 100% into ions its called strong acid.

Base:

They get completely ionised in water to give one or more hydroxide per base molecule.

H2C2O4: Acid

,LiCl: Neutral compound

HCl: strong acid

BaF₂: Neutral compound

LiOH: strong base

(NH₄)₂SO₄: Inorganic Salt

Ba(OH)2: strong base

HClO₄ : acid

MgO: Balanced Equation

2Mg(s) + O_2(g)= 2MgO

It is an ionic bond, Mg has 2+ charge while oxygen has 2- charge which reacts to form MgO

Single- Displacement reaction

MgO (s) + 2HCl (aq) = MgCl₂ (aq) + H₂ (g)

Balanced Equation of Heptane:

C₇H₁₆ + 11O₂ = 7CO₂ + 8H₂O