Helppp pleasee Part A
Calculate the density of sulfur hexafluoride gas at 93.6 kPa and
23 °C. Express the density in grams per liter to three significant digits.

Part B
Calculate the molar mass of a vapor that has a density of 7.125 g/L at
11 °C and 99.1 kPa. Express the molar mass in grams per mole to three significant digits.
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i believe the answer is c. "baking" is the gerund, while "baking blueberry muffins" would be the gerund phrase. hope this ! : )

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.