Is sodium element a metal nonmetal or metalloid

Hydrogen pumps move hydrogen ions into which structure?

When a substance freezes, what happens to the mass? The mass stays constant as it changes from a liquid to a solid. The mass increases as it changes from a liquid to a solid. The mass decreases as it changes from a liquid to a solid.

How many grams of iki would it take to obtain a 100 ml solution of 0.300 m iki? how many grams of iki would it take to create a 100 ml solution of 0.600 m iki?

02:59:56 A 60.0-g sample of fermium-253 was placed in a sealed vessel 9.0 days ago. Only 7.5 g of this isotope is now left. What is the half-life of fermium 253? 3.0 days 4.5 days 17.5 days 20.0 days

The decayed organic material that gives soil its dark brown or black color is called A) clay. B) humus. Eliminate C) loam. D) silt.

How many orbitals are possible in the third energy level?

The density of a gas is 1.49 g/l at a temperature of 24 âc and a pressure of 0.787 atm. calculate the molar mass of the gas.

Why does the concentration of a product increase as the amount of the reactant decreases? (More 10 + pt questions on profile)

In a balanced equation, coefficients always represent a the ratio of volumes of substances b the volume ratios of reactants and products c the mole ratios of reactants and products d the number of atoms present

What is the amount of moles for 12.0 g Ar?