What was used in the first voltaic cell to allow for ion flow between the solutions of CuSO4 and ZnSO4?

A. a porous barrier

B. a non-porous barrier

C. a platinum bridge

D. a salt bridge

What mass of water forms when 2.75 x 10-4 mol NaOH reacts completely

What happens when the compound NaCl is formed? A. Sodium transfers an electron to chlorine. B. Sodium receives two electrons from chlorine. C. Sodium forms an ion with - 1 charge and chlorine forms an ion with + 1 charge. D.

How many moles of N are in 0.209 g of N2O?

A little aluminum boat (mass of 14.50 g. has a volume of 450.00 cm3. The boat is placed in a small pool of water and carefully filled with pennies. If each penny has a mass of 2.50 g, how many pennies can be added to the boat before it sinks?

What happens to solubility when the temperature of a solvent is increased.

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.

The compound KOH is called

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?

If 100 mL of a gas were enclosed in a buret at 500 mm Hg, what volume would the gas occupy at 1000 mm Hg at the same temperature? P1V1=P2V2

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?