How many copper atoms are in this amount of copper?

Explain why ice is able to float on water

1.00 L of a gas at standard temperature and pressure is compressed to 473 mL. What is the new pressure of the gas?

A group of giraffes feeds on leaves and grasses during the daytime. Right now, it is dark out and the giraffes are not eating. Is carbon dioxide moving into the living things, moving out of the living things, or both?

A 225-g sample of aluminum was heated to 125.5 oc, then placed into 500.0 g water at 22.5 oc. (the specific heat of aluminum is 0.900 j/goc). calculate the final temperature of the mixture. (assume no heat loss to the surroundings.)

What is the percent by mass of water in Na2SO4*10H2O

Select the correct answer. Which of these elements is rarely found in organic molecules? A. hydrogen B. oxygen C. barium D. carbon

Can a solution with undissolved solute be supersaturated

What family is the mineral lead in?

What is a greenhouse gas?

What symbol of xenon would be a part of the noble gas notation for the element?