5. Which of the following would BEST indicate an exothermic reaction is taking place? a. The ice melts
b. Bubbles appear
c. A sweet odor or smell is produced
d. The temperature of the mixture rises 14 degrees in two minutes

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.