Convert the following word equations to balanced chemical equations mentioning the states of the reactants and products and identify the type of reaction - (Each question carries 2marks each)
1. Glucose + Oxygen
2. Barium chloride + Aluminium Sulphate 3. Sodium hydroxide + Sulphuric acid
4. Magnesium oxide + Water
5. Zinc + Hydrochloric acid
6. Silver chloride
7. Lead nitrate Sunlight
8. Zinc + Copper sulphate
9. Zinc oxide + Carbon
10. Methane + Oxygen
Answers
Answer:
a) Hydrogen gas combines with nitrogen to form ammonia.
H2(g)+N2(g)→NH3
The balanced equation for this reaction can be written as:
3H2(g)+N2(g)→2NH3
(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
H2S(g)+O2(g)→H2O+SO2
The balanced equation for this reaction can be written as:
2H2S(g)+3O2(g)→2H2O+2SO2
(c) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
BaCl2+Al2(SO4)3→AlCl3+BaSO4↓
The balanced equation for this reaction can be written as:
3BaCl2+Al2(SO4)3→2AlCl3+3BaSO4↓
(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
K+H2O→KOH
1. The reaction of glucose, C6H12O6, with oxygen produces carbon dioxide and water.
2. When barium chloride reacts with aluminum sulphate it gives aluminum chloride and barium sulphate as a product. Barium sulphate is represented as BaSO4 barium has oxidation state and sulphate has oxidation state. ... So, 1 aluminum reacts with 3 chlorines.
3. When sodium hydroxide react with sulphuric acid they form Sodium sulphate and water. The reactants involved in the process are sodium hydroxide and sulfuric acid. The reactants is base and an acid, which leads to neutralization process and yields a salt .
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4. Magnesium oxide (MgO). In aqueous media combines quickly with water to form magnesium hydroxide. ... It is used as an antacid and mild laxative and has many nonmedicinal uses.
Molecular Formula: MgO
Structure: Find Similar Structures
Molecular Weight: 40.305
5. Metals with dilute acid
When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas. We can measure the rate of the reaction by measuring how fast the reaction produces hydrogen. This requires a conical flask and gas syringe.
6. Silver chloride is a chemical compound with the chemical formula AgCl. This white crystalline solid is well known for its low solubility in water. Upon illumination or heating, silver chloride converts to silver, which is signaled by grey to black or purplish coloration to some samples