Ireally need ! calcium metal reacts with a potassium chloride solution to form calcium chloride and potassium ions. balance this reaction. (s) + (aq) → cacl2(s) + +(aq) a) 1, 2, 1, 2 b) 1, 2, 1, 1 c) 1, 1, 1, 1 d) 2, 1, 2, 1

A because KCL 2 and K + CL cancel out and Both of the Ca cancel each other out

Option (A) is the correct answer.

Explanation:

When calcium reacts with potassium chloride then  it results in the formation of calcium oxide and potassium ions.

The given equation is as follows.

Number of atoms on reactant side are as follows.

Number of atoms on product side are as follows.

To balance the given equation, multiply KCl by 2 on the reactant side and multiply potassium ions by 2 on product side. Therefore, balanced chemical equation will be as follows.

Explanation:

Chemical property is the property which can be observed by changing the chemical composition of a substance. For example, melting point, boiling point etc are chemical properties.

Whereas a physical property is the property which can be observed without changing the chemical composition of a substance. For example, shape, size, density etc are all physical properties.

On burning wood, it turns into ashes that is its chemical property as there a change in chemical composition then.

Wood is brown in color, this shows its physical property.