You dissolve 0.56 g of potassium chloride (KCl) in 650 ml of water. What is the molarity of the solution?

(From the periodic table: 1 mol K = 39.10 g; 1 mol Cl = 35.453 g)

Enter the value rounded to three decimal places with no units

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

i'm wiling to try and you : )

може ли да зареждате повече информация, моля