Is osmosis the same quality of diffusion but in different molecules

Scientists use their to make observations

Do valence electrons have larger or smaller ionization energies that the inner-shell electrons?

What happens to water when it changes to ice? Its density increases. Its density decreases. Its mass increases. Its mass decreases. Its volume increases. Its volume decreases.

Which is the correct chemical equation for the following statement? "Sodium reacts with oxygen in a 2 to 1 ratio to produce sodium oxide."

What is the temperature of 1.25 moles of an ideal gas if it occupies 20.0 liters at a pressure of 1.45 atm?

What can the student predict if she finds the mass of the whole candy bar, including the wrapper?

A hardware salesman measures the mass of a box containing 1000 washers. The mass is 1.1298kg. What is the mass of a single washer in milligrams? Write your answer as a decimal.

according to the law of conservation of, the number of atoms in the products of a chemical and equation must be balanced with the number of atoms in the reactants

whats the specific heat of an unknown substance if the addition of 800 joules of heat energy caused a 30 gram sample to warm from 20 to 40 degrees celsius?

How much energy (in kj) is required to ionize 2.52 moles of hydrogen atoms?