How does sandstone change into quartzite

12. complete each of the following word equations for synthesis reactions. a. sodium + oxygen -> b. magnesium + fluorine -> 13. complete and balance the equations for the decomposition reactions. a. hgo -> [with the triangle heat symbol above the arrow] b. h2o(l) -> [with "electricity" written above the arrow]

50 pts plz what is the physical state of matter of baking soda.

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)