Which equations represent precipitation reactions? Na2S + FeBr2 → 2NaBr + FeS
MgSO4 + CaCl2 → MgCl2 + CaSO4
LiOH + NH4I → LiI + NH4OH
2NaCl + K2S → Na2S + 2KCl
AgNO3 + NaCl → AgCl + NaNO3

150.0 grams of asf3 were reacted with 180.0 g of ccl4 to produce ascl3 and ccl2f2. if the actual yield of ccl2f2 was 127 g, what is the percent yield?

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397