What is the molar mass of sand (SiO2) to the hundredths place in g/mol?

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]

What does the symbol (–hfus) indicate in a phase change?

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above