what is the efficiency of a machine if your work on the machine is 1,200 j and the machines output work is 300j

How many atoms are present in 2 molecules of C6H12O6

How do you prove law of conservation of mass?

if the energy in a serving of food can heat up 450,000 grams of water 1°C, how many Calories are in the serving?

What would happen if IgE were produced against a self molecule? a) The hypersensitive reaction would lead to anaphylactic shock. b) It would enhance immune function. c) The hyposensitive reaction would lead to anaphylactic shock.

What makes an increase in temperature change the reaction rate? O A. It increases the equilibrium constant of the reaction. O B. It decreases the activation energy of the reaction. O C. It prevents the backward reaction from happening. O D.

Why do you think that the particles of a suspension settle out but the particles of a colloid do not

A solution that is 33.6 % by mass of phenol (C6H5OH) in water is prepared. What is the mole fraction of the phenol?

Describe the law of conservation of momentum

14. What steps should you take to keep parents and the public from viewing your personal information on social networks?

Match the factors which affect the rate of dissolving/dissociation/diffusion.