Which of the following elements is radioactive and synthetic?

A.

cesium

B.

xenon

C.

barium

D.

neptunium

A length of a #8 copper wire has a mass of 24.0 kg and a resistance of 2.061 ohm per km. what is the overall resistance of the wire

What is the key characteristic of an oxidation-reduction reaction? A. Electricity is gained. B. Electricity is lost. C. Electrons are exchanged. D. Electrons are gained. E. Electrons are lost.

Thallium-207 emits a beta particle

50 grams of sodium chloride is dissolved in a liter of water. identify the solute in this process. your answer

What is the molarity of the following solution given: 1.0 moles of potassium fluoride (KF) is dissolved to make 0.10 L of solution

To what chemical reaction class does this reaction belong? 2 mg (s) + o2 (g) 2 mgo (s)

Which best illustrates how particle arrangement changes when solids change into liquids

Express in scientific notation (6.0x10^4) (3.1x10^-1)

How do you measure the mass of a liquid?

Given the following information, calculate the mass for B-11. B-10 has a natural abundance of 19.9 percent, while B-11 has a natural abundance of 80.1 percent. The mass of B-10 is 10.013 amu.