Mary roller skates 18 miles in 1 1/2 hours what is her average speed in miles per hour

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2