Avogadro's law relates the volume of a gas to the number of moles of gas when temperature and pressure are constant. according to this law, how would the volume of a gas change if a reaction produced 1 mole of gas from 2 moles of gaseous reactants? a. the volume would be one-fourth of the original volume. b. the volume would be four times the original volume. c. the volume would be two times the original volume. d. the volume would be one-half of the original volume.

Who is better, messi or cristiano, i need this for a chemistry class. asap

1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent