The valence electrons in tin are Type your answer here
strongly attracted to the
nucleus than those in silicon and the valence electrons in germanium are
Type your answer here
strongly attracted to the nucleus than those in bromine.
In each blank choose either of the following two words: more or less.

As a part of an experiment a student burns propane to produce carbon dioxide and water she remembers that she must follow the law conservation of matter when writing a balanced chemical equation which of these equation adheres to the law of conservation of matter

Which statement justifies that phosphine (ph3) is a polar molecule?

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]