The chemical equations are reactions which happen in interaction of substances, expressed by means of special formulas. Chemical equations show to experimenters what substances enter interaction (reaction) and what turn out as a result of such chemical reaction.
Instruction
1. First of all, it would be desirable to tell - to solve any chemical equation, it is important to know certain methods, ways and approaches to this process about what the speech will go below.
2. For a start it is important to know that the mass conservation law is the cornerstone of drawing up any chemical equation. And also any chemical equation shows a ratio of amount of substances which participate in reaction. Knowing it, it is possible to start the following actions.
3. Study attentively a condition of the task. Write down briefly a condition on the sheet of paper or in a notebook. Work out the equation of chemical reaction. Write down all known and unknown sizes over the worked-out equation. Making such actions, it is important not just to specify figures, but also to deliver the corresponding units of measure for pure substances without impurity.
4. Determine initially the content of pure substance at the introduction in reaction of the substances containing impurity. Write down the corresponding values of the sizes found on the equation of chemical reaction under formulas of substances with known and unknown. Make a proportion and solve it. Write down the answer.
5. Do similar actions, having taken other substances. Remember that the more you will find for time for the solution of the chemical equations, the this process will be easier for you.
6. At study and the solution of the chemical equations it is necessary to know and remember that these equations are other than other (mathematical). In the chemical equation it is impossible to interchange the position at all of the right and left parts as substances of the right part are products of reaction, and substances of the left part – the name of reagents. In case you make shift of the specified two parts, the chemical equation of absolutely other reaction as a result will turn out.