A 22.5 g sample of X reacts with a sample of Y to form 68.3 g of XY. What is the mass of Y that reacted.

Order the planets from nearest to farthest from the sun

A team of engineers has decided to design a new shoe for people suffering from a painful foot condition. What should the engineers do during the planning stage of their project? A.

Dr. Garcia is conducting an experiment to see how caffeine affects a person's brain activity. She asks ten test subjects to drink a cup of tea and tells them that there is caffeine in it.

These to particles are found in the center of an atom blank and blank

Is hydrogen a molecule and a compound?

What do you call an equation that has all the correct formulas, but is not a balanced equation

What were some reasons why it was a good idea to remove the lid from the separatory funnel after each extraction? Select all that apply.

The half-life of iodine is 8 days. If 700.00 g sample decays to 43.75, how much time has passed

The size of a minerals crystals depends on what?

The density of gold is 19.3 g/cm3. What is the mass of 15cm3 of gold?