A chemical reaction in which all of the reactants and products are gases takes place in a closed system. How would the chemical equation for that reaction be described? The mass of the product gases is equal to the mass of the reactant gases.

The mass of the product gases is greater than the mass of the reactant gases.

The mass of the reactant and product gases will vary with the temperature.

The mass of the reactant gases is greater than the mass of the product gases.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

d

explanation: