A the top of a hill, an athlete on a skateboard has X joules of mechanical energy. How much mechanical energy will she have at the bottom of the hill? Ignore the effects of friction.

What is the [OH-] in a solution of pH 3.00? a. 1.0 x 10-9 M b. 1.0 x 10-6 M c. 1.0 x 10-3 M d. 1.0 x 10-11 M e. 11.00 M

What is an advantage for a single cells organisms

Write the balance radox reaction by half equation when permanganate (vii) ion produces iodine molecule (iv) manganese (iv) oxide in a acidic medium

What are the advantages of deep tap root

What happens to the outlet temperatures of the hot and cold fluid when the both the hot fluid is at a maximum and the cold fluid is at a minimum flowrate?

Gasoline catches on fire is it flammability?

Enzymes are proteins that speed up chemical reactions in the body how do they work A. they increase the surface area of reactants B. they increase the concentration of reactants C. they decrease the concentration of products D. They act as reactants

Atomic number for bromine

A reaction with ΔH = - 13 kJ/mol and ΔS = - 22 J/K·mol, at 2°C, the reaction is: A) spontaneous B) nonspontaneous C) at equilibrium D) impossible to determine reactivity E) none of the above

A sample of an unknown liquid has a volume of 30.0 mL and a mass of 6 g. What is its density? i need this hella quick