10. What do you have to do to the coefficients of equation I below to get to equation II? i. 2 SnO2 + 4 H → 2 Sn + 4 H 0
ii. Sno, + 2 H, → Sn + 2 H2O
Can you divide equation II by another factor and still have it be correct? Why or why not

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]

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Explain what happens at the saturation point when adding salt to water at room temperature.