Which isotope has a relatively short half-life?

carbon-12

carbon-14

uranium-238

oxygen-16

What is the mass of an electron? A. Electrons do not have mass. B. - 1.0 amu C. 0.0005 amu

How to find thr solute and solvent

Sodium (chemical symbol Na) is atomic number 11 and is in the first column of the periodic table so it has one valence electron. What is the typical charge when sodium forms a charged particle (ion) A) + 1 B) + 2 C) - 1 D) - 2

On Earth, the white colored paper represents areas that are A) covered with snow and reflect sunlight. B) heavily populated and use the sunlight. Eliminate C) covered with water and reflect sunlight. D) covered with concrete and absorb sunlight.

Nitric acid reacts with silver metal 4hno3 + 3ag = no + 2h2o + 3agno3. calculate the number of grams of no formed when 10.8 g of ag reacts with 12.6g of hno3

What could you predict about a methane molecule that would most likely be made by using both the quantum model of the atom and John Dalton's model?

What is the molar mass of an unknown hydrocarbon whose density is measured to be 1.97 g/l at stp?

Which is an example of flow of heat through conduction

Which of the following is an extensive physical property of matter? volume viscosity odor density

When is Ksp determined for a system?