3HNO3 + Na3PO4 -> H3PO4 + 3 NaNO3 how many grams of NaNO3 are made if it required 15.4mL of 0.5 M HNO3 to finish the titration

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

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

Why is retrograde motion an apparent motion