A solution of pH6 has a ______ [H3O+] than does a solution of pH4.
400
.71 moles of NaOH
You are given 4.3 x 10^23 particles of NaOH, how many moles does this equal?
400
39.2g MgCl2
If 20.0 g of magnesium react with excess hydrochloric acid, how many grams of magnesium chloride will be produced?
400
the force that acts on the surface of a liquid and that tends to minimize the area of the surface
What is surface tension?
400
C. They appear to be more than one substance.
Which of the following is NOT true of solutions? a. The contain a dissolved substance called a solute. b. They are composed of two or more evenly distributed substances. c. They appear to be more than one substance
When butane, C4H10 burns in oxygen, the products are carbon dioxide and water. What
mass of carbon dioxide will be produced when 4.42 g of butane is burned in excess
oxygen?
500
the process in which a solid changes directly into a gas (the term is sometimes also used for the reverse process)
What is sublimation?
500
solute
In a solution, the ________ is the substance that is dissolved.