A horse pulls a 95 kg sleigh to the top of a snow-covered hill. If the hill is 6.2m high, how much work does the horse do on the sleigh? ignore friction

What is an oxidizing agent? O A. A substance that oxidizes another substance O B. A substance that is oxidized in a reaction O C. A substance that reduces another substance O D. The product of an oxidation reaction SUBN

Classify the reaction: N2 (g) + 3H2 (g) à 2NH3 (g)

Which of the following is nicknamed the "powerhouse" of the cell?

How many total atoms are in 3Na2SO4?

Why is something that stores chemical energy?

Which of the following statements best describes the basic structure of an atom? Electrons and protons are in motion around a nucleus that contains neutrons Neutrons are in motion around a nucleus that contains protons and electrons Protons are in

Which of the following elements is released into the atmosphere by all of these processes: volcanic outgassing, animal respiration and flatulence, burning of fossil fuels, and metamorphism of limestone? a. Carbon. b. Nitrogen. c. Oxygen. d. Sulfur

A phase change from a solid to a gas is called what

What is the meaning of semipermeability?

What type of reaction does Fe+Ag2SO4-FeSO4+Ag