If a sample of pure sodium has a mass of 8.2 grams and sodium has an average atomic mass of 22.99 g/mol, how many sodium atoms are there in the sample?

If a reaction starts with 0.480 mol Mg how many moles of silver are produced Mg + 2AgNO3 - -> Mg (NO3) + 2Ag

In the event that you are exposed to infectious materials by being accidentally stuck with a used needle, you should report it to your supervisor and seek medical attention. However, what is the one thing you should do first? A. Bandage the wound B.

Identify a situation in which you would want to have a high resistance and a situation in which youwould want to have a low resistance

How water leaves the atmosphere

How many moles of zinc are needed to react with 45.60 moles of nitric acid?

Identify and describe the appearance of the type of muscle tissue found in your heart

Calculate the coulombic force (in Newtons) felt by an electron and a proton separated by a distance of 1 angstrom. An angstrom is 10-10 meters.

Why does stirring increase the rate of dissolution? A. Stirring the solution decreases the kinetic energy of the solution. B. Stirring the solution increases the surface area of the solution. C.

How many moles of ba (oh) 2 are present in 275 ml of 0.200 m ba (oh) 2?

The molecular weight of vitamin C, CH06, is 176.12 8 mol What is the mass, in grams, of 0.000142 mol of vitamin C? Express the answer using 3 significant figures. 09