Question

Write down the balanced chemical equations for the following reactions (no state symbols required): [4.5]

a) Aluminium reacts with oxygen to form aluminium oxide.

b) Calcium hydroxide reacts with hydrochloric acid to form calcium chloride and water.

c) Zinc sulphide reacts with oxygen to form zinc oxide and sulphur dioxide​

Answer 1

You call an expression with a single term a monomial, an expression with two terms is a binomial, and an expression with three terms is a trinomial. ... For example a polynomial with five terms is called a five-term polynomial.

Answer 2

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a) 4Al + 3O₂ → 2Al₂O₃

b) 2HCl + Ca(OH)₂ → CaCl₂ + 2H₂O

c) 2ZnS + 3O₂ → 2ZnO + 2SO₂

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