You have 100 grams of potassium fluoride (kf) .

how many moles do you have?

1.00 mol

1.50 mol

1.72 mol

3.57 mol

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.