Question

Balance the equation. Select whether the type of reaction is a synthesis reaction, a decomposition reaction, a single-displacement reaction, a double-displacement reaction, or a combustion reaction with the letters S, D, SD, DD, C.

Answer 1

Synthesis reactions involve combining substances to form a new substance. In decomposition reactions, a single compound breaks down into multiple substances. Single-displacement and double-displacement reactions involve switching elements or compounds.

Step-by-step explanation:

A synthesis reaction is a type of chemical reaction where two or more substances combine to form a single new substance. A decomposition reaction is a reaction where a single compound breaks down into two or more new substances. A single-displacement reaction involves an element and a compound reacting so that their elements are switched. A double-displacement reaction occurs when two ionic compounds in aqueous solution switch anions and form two new compounds.

To balance an equation, follow these steps:

1. Identify the most complex substance.
2. Choose an element(s) that appears in only one reactant and one product, if possible, and adjust the coefficients to obtain the same number of atoms of this element(s) on both sides.
3. Balance polyatomic ions (if present on both sides of the equation) as a unit.
4. Balance the remaining atoms, usually ending with the least complex substance and using fractional coefficients if necessary. If a fractional coefficient has been used, multiply both sides of the equation by the denominator to obtain whole numbers for the coefficients.
5. Count the numbers of atoms of each kind on both sides of the equation to be sure that the chemical equation is balanced.