Question

Balance the following equation

1. Al + O2 - Al2O3
2. C3H8 + O2 - CO2 + H2O
3. Al(NO3)3 + NaOH - Al(OH)3 + NaNO3​

Answer 1

Answer:

1. 4Al + 3O2 - 2Al2O3

2. C3H8 + 5O2 - 3CO2 + 4H2O

3. Al(NO3)3 + 3NaOH - Al(OH)3 + 3NaNO3

Answer 2

The balanced chemical equations are as follows:

1. $4Al + 3O_{2}$ → $2Al_{2} O_{3}$.

2. $C_{3} H_{8} + 5O_{2}$ → $3CO_{2} + 4H_{2} O$.

3. $Al(NO_{3})_{3} + NaOH$ → $Al(OH)_{3} + NaNO_{3}$​

Balanced chemical equation:

• A balanced equation is a chemical reaction equation in which the total charge and the number of atoms for each element in the reaction are the same for both the reactants and the products.
• In other words, the mass and charge on both sides of the reaction are balanced.
• When the number of atoms involved in the reactants side equals the number of atoms involved on the product side, the chemical equation is balanced.
• Reaction = $N_{2} + 3H_{2}$ → $2NH_{3}$
• Nitrogen ($N_{2}$) reacts with hydrogen (H) to produce ammonia in this chemical reaction ($NH_{3}$).
• Nitrogen and hydrogen are the reactants, and ammonia is the product.

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