John is lifting a 1.5 kg toy to a height of 1.2 m above the ground. How much work is done?

What causes red giants expand to become larger than main-sequence stars?

Calculate the pressure in atm, if 0.00825 moles occupies 174 mL at - 15 celcius.

How could you safely determine if a base is stronger than an acid?

5. What do you think earth would be like if the continental drift never took place?

What volume will 0.875 moles of Kr occupy at STP

Which statement is true at STP? (The atomic mass of Zn is 65.39 u.)

A sample of gas has a volume of 2.4 L and a pressure of 1.2 atm. What would the pressure of the same gas sample be if the volume is reduced to 1.8L at a constant temperature?

The elements most likely to form more than type of ion are the ... A. Transition metals B. alkali metals C. halogens D. alkaline earth metals

Mole-Mass Conversions How many moles in 28. o grams of Oxygen? What is the mass of 5.0 moles of Iron? Find the number of moles of argon in 452 g of argon. Find the grams in 16.5 mol of Hydrogen.

What is equal solute concentration inside and outside of the cell so water moves at equal rates?