How many moles are equal to 3.82x10^20 atoms of helium?

The largest number from among the following is: 1.80 x 10-6 1.80 x 10-4 1.80 x 10-8 1.80 x 10-2

Is potassium hydroxide amphoteric?

When heat is added to a liquid at the boiling temperature, it converts the liquid into a gas at the same temperature because A) the heat added is lost by the system. B) the heat added is absorbed by the container.

Identify the mixture of powdered charcoal and powdered sugar and suggest a technique for separating their components

A tank contains a mixture of 52.5g oxygen gas and 65.1g carbon dioxide gas at 27c. the total pressure in the tank is 9.21 atm calculate the partial pressure of each gas in the containter

4.05 kg + 567.95 g + 100.1 g add the correct value using the correct sig figs and or least precise degree of precision. When i did least degree of precision i got 4718.

Dinitrogen pentoxide gas is formed by the reaction of nitrogen trioxide gas and nitrogen dioxide gas balanced equation

In an experiment to test a new drug's effectiveness, one group is given a larger dosage than is typically prescribed, and a second group is given a smaller dosage than is typically prescribed.

Waves move out through the ground from the source of an earthquake. True or false

The 14C content of a wooden harpoon handle found in the remains of an Inuit encampment in western Alaska is 61.9% of the 14C content of the same type of wood from a recently cut tree. How old is the harpoon?