You place an air-filled balloon in a closed chamber at STP. When the balloon doubles in size, what happens to the temperature of the gas in the balloon?
A) temperature decreases by 1/2
B) temperature stays the same
C) temperature doubles
D) temperature increases by 1/2

Identify the balanced chemical equation that represents a decomposition reaction. p4 + 3o2 ⟶ p2o3 2fe(oh)3 ⟶ 2feo3 + h2o cuso4 ⟶ cuo + 2so3 2fe(oh)3 ⟶ fe2o3 + 3h2o

An isotope undergoes radioactive decay by emitting radiation that has no mass. what other characteristic does the radiation have?

20 !! 1 a metal has higher reactivity than magnesium. which of the following statements about the location of this metal on the periodic table can be true? a. the metal is to the right of magnesium in the same row. b. the metal is to the left of magnesium in the same row. c. the metal is below magnesium in the same column. d. the metal is above magnesium in the same column.