# chemistry

Could you please explain to me how to balance a chemical equation? I've been trying to figure it out, but I can't seem to understand it at all.

1. 👍 0
2. 👎 0
3. 👁 183
1. There are two types of equations to balance.
1)non-redox which are balanced by trial and error.
2) redox equations which have rules that can be followed (although sometimes they can be balanced by trial and error also).
I assume you want #1. Here is a simple one.
CH4 + O2 ==> CO2 + H2O
1. I look at the equation and just start with the first element. C is 1 on the left and 1 on the right. Temporarily, at least, this one is ok for now unless something else changes it.

2. Then I look at H. There are 4 atoms on the left and I can make it 4 on the right by adding a coefficient of 2 for H2O so now the equation looks like this.
CH4 + O2 ==> CO2 + 2H2O

3. When balancing oxygen, I notice it stands by itself; therefore, I NEVER try to add O2 and try to balance it on the right. I ALWAYS count up what I need on the right, then make the one on the left the number I need. On the right I have 4 O atoms (2 from CO2 and 2 from 2H2O = 4). So I need 4 on the left and I can get that by placing a coefficient of 2 for O2 so the balanced equation reads as
CH4 + 2O2 ==> CO2 + 2H2O.

4. I ALWAYS check it to make sure it is right. I see 1 C on left and right.
I see 4 H atoms on left and right.
I see 4 O atoms on left and right. Equation is balanced.

5. How do you get more proficient at this? Practice, practice, practice.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### chemistry

Balance the following chemical equation: C3H7OH(l) + O2(g) CO2(g) + H2O(g)

asked by love on February 6, 2012
2. ### Chemistry

Complete and balance each of the following equations for gas-evolution reactions. HNO3(aq) + Li2S produces ? Express your answer as a chemical equation. Identify all of the phases in your answer.

asked by Anonymous on October 8, 2010
3. ### Chem

Balance the chemical equation for the important industrial process: C2H4 + O2 + HCl → C2H4Cl2 + H2O. Given 610.0 kg of hydrochloric acid, calculate how many kg of C2H4Cl2 can be produced.

asked by DEN on October 18, 2012
4. ### chemistry

For each of the following chemical reactions: a.)classify the reaction as combination, decomposition,single replacement, or double replacement. b.)complete the word equation. c.)using the formulas for both reactants and products,

asked by Yeah on September 23, 2008
5. ### chemistry

What is the difference between biochemical, pharmaceutical, and diagnostic chemical reactions in healthcare? What is a specific example that exists for each of these chemical reaction types above and why might it be of importance

asked by slomomo on May 16, 2014
1. ### chemistry

Represent this reaction with a balance chemical equation. Solid aluminium hydride is formed by a combination reaction of its two elements.

asked by Shane on November 25, 2012
2. ### Chem

Balance the chemical equation given below, and determine the number of grams of MgO needed to produce 15.0 g of Fe2O3. _MgO(s)+_Fe(s)->_Fe2O3(s)+_Mg(s) 1. a. 11.4 g 2. b. 3.78 g 3. c. 1.26 g 4. d. 0.0877 g I got equation balanced

asked by Mark on April 24, 2010
3. ### Calculus

A chemical reaction proceeds in such a way that after the first second, the amount of a certain chemical involved in the reaction changes at a rate that’s inversely proportional to the product of the mass of the chemical present

asked by Sarah on October 10, 2019
4. ### Chemistry

Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2g of ammonia are reacted with 787.3 g of carbon dioxide. a. Which of the two reactants is a limiting reactant? Show your calculations

asked by Nyla on February 27, 2014
5. ### Chemistry

Use a balance chemical equation to explain the behaviour of tetraoxosulphate(vi)acid when it reacts with magnesiumtrioxocarbonate(iv)?

asked by Aondona on June 21, 2019
6. ### Chemistry

Write the balanced chemical equation for the decomposition of sodium azide. If this is a redox reaction, show half reactions and determine if spontaneous. The chemical equation is 2NaN3(s) -> 2Na(s)+3N2(g) right? I am confused on

asked by Heather on October 8, 2012