When hydrochloric acid is dripped onto marble, bubbling is observed while dripping hydrochloric acid onto granite does not lead to bubbling. Based on these observations, what compound may be a component of marble but not granite?

Calcium carbonate

Explanation:

Marble is mainly composed of calcium carbonate.

When hydrochloric acid is dipped on the marble a reaction occurs between the carbonate group of the calcium carbonate and hydrochloric acid which results in the formation of carbon dioxide. The bubble which are seen are of this carbon dioxide gas.

Granite is mainly composed of quatrz and feldspar and no carbonate is found in the granite that's why there are no bubbles of carbon dioxide released when hydrochloric acid is dropped on to the granite.

what is the volume occupied by 40 grams of argon gas (ar) at standard conditions? what volume, in liters, is occupied by 1.5 x 1023 

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.