A runner has a mass of 75 kg and a speed of 10 m/s. What is her kinetic energy? (KE = 1/2mv2)

One mole of ideal gas goes through an isothermal compression at a temperature of 12 °c. if 7.80 * 102 j of work is done in compressing the gas, what is the change in entropy of the system?

In a solution at 25°c the [H+] is 3.5x10^-6 M. What is the [OH-]? A) 3.5x10^-20 M B) 2.9x10^-9 M C) 1.0x10^-7 M D) 3.5x10^-6 M

Copper (cu) is an example of what? heterogeneous mixture element homogeneous mixture compound

Which of these is a chemical property of a substance? A. texture B. ductility C. reactivity D. conductivity

Which is more acidic black coffee or orange juice

Limiting Reactant For the general reaction stoichiometry of 2A + 3B → D+E, which reactant is the limiting reactant (A or B), if the initial number of moles is 3 moles of A and 4 moles of B?

Molar mass is measured in units of A. amu. B. milliliters. C. milligrams. D. grams/mole.

A compoundwhose water solution conducts electricity and turns phenolphthalein pink is? A. CH3OH B. HC2H3O2 C. HCl D. NaOH

The specific gravity of an object is 14.5. The object displaces 4 mL of water. What is its mass

Select the correct electron configuration for Vanadium. (Atomic Number 23) 1s 2 2s 6 2p 3 3s 2 3p 4 4s 2 3d 5 1s 2 2s 2 2p 6 3s 2 3p 8 4s 2 3d 1 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 3 1s 2 2s 2 2p 5 3s 2 3p 7 4s 1 3d 4