Alculate the heat change in calories for freezing 40 g of water at 0 ∘C . Express your answer as a positive value using two significant figures and include the appropriate units.

2.0 cal

3200 cal

0.50 cal

40.0 ca

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