Which of the following statements is true of an aqueous solution of sodium chloride? one that has 30.0 grams of nacl dissolved in 100 grams of water is more concentrated than one that has 15.0 grams of nacl dissolved in 100 grams of water. one that has 30.0 grams of nacl dissolved in 100 grams of water is more dilute than one that has 15.0 grams of nacl dissolved in 100 grams of water. one that has 30.0 grams of nacl dissolved in 100 grams of water would have the same molarity as one that has 15.0 grams of nacl dissolved in 100 grams of water. one that has 30.0 grams of nacl dissolved in 100 grams of water has less solute than one that has 15.0 grams of nacl dissolved in 100 grams of water.

One that has 30.0 grams of NaCl dissolved in 100 grams of water is more concentrated than one that has 15.0 grams of NaCl dissolved in 100 grams of water.

Explanation:

answer; i believe the correct answer is (solid gold);

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.