Which of the following will have the biggest impact on freezing point? 2 moles KOH

1.5 moles C2OH

1.5 mole CaBr2

1 mole Mg(NO3)2

2 moles C6H12O6

Express the following number in scientific notation. 0.026890 =

How many molecules are found in 1.32 mol of nacl?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat