A ABSORBS HEAT.....................
Answer: The balanced equation for given reaction is
.
Explanation:
A chemical equation which contains same number of atoms on both reactant and product side is called a balanced chemical equation.
For example, 
Number of atoms on reactant side are as follows.
Number of atoms on product side are as follows.
Since atoms on both reactant and product side are equal. Therefore, this equation is balanced.
Thus, we can conclude that balanced equation for given reaction is
.
The correct answer among the choices is option A. The term that defines the following: grams of solute divided by 1,000,000 grams of solution is called ppm. This is one
way of expressing concentration. Parts per million is also equal to 1 milligram of solute per kilogram of
solution.
The difference between a chemical change and a physical change lies in how the change affects the composition a substance. A chemical change occurs on the molecular level and produces a new substance. However, a physical change rearranges molecules and does not produce a new substance.