List two ways to measure the gravitational potential energy of the ball when it's dropped from different heights. Think about the motion of the ball and your energy flow diagram. Give an argument to support your choices.

If a given power plant released so2 gas with a volume v of 1200 m3 at a density ρ of 2.86 kg/m3 at standard pressure and temperature, how many moles n of so2 are released?

What is the ground-state electron configuration of a neutral atom of cobalt? express your answer in condensed form, in order of increasing orbital energy. for example, [he]2s22p2 would be entered as [he]2s^22p^2?

onsider two aqueous solutions of nitrous acid (HNO2). Solution A has a concentration of [HNO2] = 0.55 M and solution B has a concentration of [HNO2] = 1.55 M. You may want to reference (Page 743) Section 16.6 while completing this problem.

How do the atoms of a molecule stay together? A. chemical bonds B. magnetic force C. attraction of electrons and neutrons D. through physical changes

Kinetic energy and potential energy are often considered to be forms of mechanical energy. List three other forms of energy and state a source for each.

Which statement about the electron-cloud model is true? A. It is the currently accepted atomic model. B. it can easily be replaced by existing models C. It specifies the location and momentum of an electron. D.

To the nearest gram, what is the mass of one spoonful of sugar?

What is the molarity of a solution that contains 28g of KOH in 2L of solution?

For any enzyme, what would the initial velocity be, as a percent (%) of Vmax, if the [S] was equal to Km/10?

It was determined through analysis that a compound, sodium carbonate with a molar mass of 263 g/mol contained 68.4% water. determine the toilet number of water molecules in this hydrate