If you could measure the mass of the substances inside the cup before and after the reaction, you would see that the mass decreased over a course of the reaction. Explain the difference.

Do you think this is an ethical decision

What holds earths atmosphere in place

Which of the following mixtures may be act as a buffer solution? A) HBr, NaBr B) HF, NaF C) HCl, NaCl D) HI, NaI

What is the correct form of the equilibrium constant for the reaction of hydrogen and oxygen to form water? the equation is:?

Which of the following best explains why J. J Thompson's Plum Pudding model had to be revised?

What do astronomers use to calculate the age of the universe? Check all that apply. dark energy the age of rocks on Earth the age of the oldest stars patterns of background radiation how fast distant galaxies are moving away from us

Determine the distance of closest approach (in fm) before the alpha particle reverses direction. Assume the lead nucleus remains stationary. Assume the alpha particles are initially very far from a stationary lead nucleus.

Why does the bottom of the boat appear to be longer than the top of the boat

Which best explains why greg's hands get warm as he holds a bowl of hot soup? heat energy is created from the thermal energy in greg's hands. heat energy is absorbed by the soup from greg's hands. thermal energy from the soup moves to greg's hands.

What are the units of k in the following rate law? Rate = k[X][Y]M/s1/Mss/M^2M/sM^2/s