A solution is made by dissolving 70.0 grams of KNO3(s) in 100. grams of water at 50.00 and standard pressure. Calculate the percent by mass of KNO3 In the solution.
A) 0.41%
B) 41.2%
C) 70.0%
D) 0.70%

What are the major products produced in the combustion of c10h22 under the following conditions? write balanced chemical equations for each. a. an excess of oxygen b. a slightly limited oxygen supply c. a very limited supply of oxygen d. the compound is burned in air

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.

A40 kilogram skier starts at the top of a 12 meter high slope. at the bottom, she is travelling 10 meters per second. how much energy does she lose to friction