A flask contains 2.00atm of nitrogen and 2.00atm of helium and an unknown number of moles of argon. What is the partial pressure of the argon if the total pressure is 8atm

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

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.