Write the word and formula equations representing the chemical reaction that occurred between the. barium chloride solution, BaCl2 (aq), and the sodium sulfate solution Na2SO4 (aq).

What is the term for substances that prevent drastic changes in pH

In science, a vacuum is defined as space that contains absolutely no matter (no molecules, no atoms, etc.) Can energy be transferred as heat through a vacuum? A. True B. False

How many liters of 0.1107 M KCI contains 15.00 g of KCI (FW = 74.6 g/mol)

Identify the 2 numbers given for each element

A nail is attracted to a magnet. What does this tell you about the nail? O A. It is harder than the magnet. O B. It is a poor thermal conductor. O C. It contains iron. O D. It is a good electrical conductor.

Which scientist proposed the "plum pudding" model of the atom?

Find the radius (r) of an aluminum cylinder that is 2.40 cm long and has a mass of 13.0 g . For a cylinder, V=π r 2 l . (The density of aluminum is 2.70 g/c m 3 .)

A mixture of nitrogen gas and oxygen gas has a total pressure of 123.5 kPa. If the nitrogen gas has a partial pressure of 104.5 kPa, what is the partial pressure of the oxygen gas? 6 Ptotal = P1 + P2

Select four of the following that are true of compounds. A They are held together by chemical bonds. B They are made up of a single type of atom. C They can be represented with a chemical formula. D They cannot be broken down by physical processes.

Element named for the scientist known for theory of relativity?