Question

question 1: formulae, equations and relative formula mass

magnesium reacts with oxygen to form magnesium oxide. write the word equation.

write the balanced symbol equation, including state symbols.

calculate the relative formula mass, mr, of magnesium oxide, mgo. ar: mg = 24, o = 16.

Explanation:

Write the word equation

$$ \text{magnesium} + \text{oxygen} ightarrow \text{magnesium oxide} $$

Write the balanced symbol equation with state symbols

$$ 2\text{Mg(s)} + \text{O}_2\text{(g)} ightarrow 2\text{MgO(s)} $$

Calculate the relative formula mass of magnesium oxide

$$
LATEXBLOCK0
$$

Answer:

Question 1

magnesium + oxygen \(
ightarrow\) magnesium oxide

Question 2

\(2\text{Mg(s)} + \text{O}_2\text{(g)}
ightarrow 2\text{MgO(s)}\)

Question 3

\(40\)