What chemical change will occur when a more reactive substance replaces a less reactive substance in a compound? a. Oxidative b. Reduction c. Displacement d. Endothermic

How do the small bodies in the solar system differ from one another?

Identify the compound with the smallest dipole moment in the gas phase. identify the compound with the smallest dipole moment in the gas phase. lif cl2 clf hf

Thomson's experiments were significant in that they questioned A. whether matter is made up of atoms. B. whether the atom has a positive or negative charge. C. whether atoms will form compounds with other atoms. D.

Sodium only has one naturally occuring isotope, 23 Na, with a relative atomic mass of 22.9898 u. A synthetic, radioactive isotope of sodium, 22 Na, is used in positron emission tomography. 22 Na has a relative atomic mass of 21.9944 u. A 1.

A chemist is using a solution of HNO3 that has a pH of 3.75. What is [H+] for the solution? * 10n M n =

Imagine that you have a 7.00 LL gas tank and a 3.50 LL gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.

Which profession is likely to use a radiation shield

What is the solution to the problem expressed to the correct number of significant figures? 2.13 + 1 = ?

What are the names of groups of metalloids

What is the attractive force that occurs between the sun and the earth called? friction magnetism weight gravity