Freddy mixed 10 g of a powdery substance with 200 g of an acid solution. A bubbly solution weighing 205 g was formed. Which best explains why the mass of the new product does not equal the mass of the reactants?

Question 2 options:

the other 5 grams weighed less in the acid

the other 5 grams created a percipitate (solid)

the other 5 grams were released as a gas

the other 5 grams changed colors

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

there’s no image attached but i can if you want: )

condensation. good luck!