How many moles is 2.80 x10^24 atoms of silicon?

Does a neon-filled tube have mass?

When a wave moves, what happens to the medium? A it moves forward with the wave B it moves only perpendicular to the energy of the wave C it moves up and down or back and forth, but it does not move forward with the wave D it moves only parallel to

What would most likely be the transmittance of a 0.70 M solution of solute A?

A catalyst increases the rate of a reaction without being consumed. It accomplishes this by providing another mechanism that has a lower activation energy. True or false?

What type of rock is formed after magma or lava cools hardens? A. layers form B. heat and pressure are applied C. lava cools D. erosion breaks down

When the Sun is in its maximum solar cycle, which of the following occurs? A. One CME is produced every five days B. There is an unpredictable amount of energy C. Up to three CMEs are created in one day D. Protons and neutrons accelerate

How many daughter cells are produced in meiosis?

Sodium chlorite - > sodium chloride + oxygen what type of chemical reaction is represented by this equation

The mixing of which pair of reactants will result in a precipitation reaction? the mixing of which pair of reactants will result in a precipitation reaction?

A balloon has 18.9 moles of hydrogen gas at a volume of 428 L. What would the volume of the gas be if the balloon had 14.0 moles of hydrogen gas left after 1 day?