The mass of an atom may be determined by adding the masses of the protons and neutrons in the nucleus. Why is it unnecessary to include the electrons when determining the mass of an atom?

President Nixon promised over $3 billion in economic aid to North Vietnam after the war. a. true b. false

At some temperature, the reaction: 3 clo - ? clo3 - 2 cl - has an equilibrium constant kc = 3.2 x 103. if the components of this reaction are mixed such that their initial concentrations are [cl-] = 0.05 m; [clo3-] = 0.32; and [clo-] = 0.

The quantity 44 liters expressed in cubic meters

How much of the air we breath comes from a distant volcano

What are the parts of a chemical equation?

What is the Ka'aba? an Islamic deity a Muslim pilgrim a book of Sharia laws an ancient stone temple

A cylinder has a height of 5.3 cm and a diameter of 3.0 cm. What is its volume?

Define density and erute the formula and units for calculating density

A student intended to make a salt solution with a concentration of 10.0 grams of solute per liter of solution. When the student's solution was analyzed, it was found to contain 8.90 grams of solute per liter of solution.

What value is the closest to the atomic mass of cerium? Isotope Percent Abundance 136Ce 0.185% 138Ce 0.251% 140Ce 88.450% 142Ce 11.114%