Which properties describe elements that are nonmetal gases? Select all that apply. A) composed of an extended structure

B) composed of individual atoms or diatomic molecules

C) high melting point

D) low melting point

E) strong attractions between particles

DF)

weak attractions between particles

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]

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.