There are 2 moles of NaCl. How many atoms of NaCl do you have?

The substances in a compound may be separated by what

The Doppler effect indicates that the universe is expanded because A. light from other galaxies is different colors B. light from other galaxies are blue shift C. light from other galaxies are red shift D. light from other galaxies is the same color

Determine the approximate amount of potassium hydrogen phthalate, KHP, that you will need to neutralize 6.00 ml of 0.100 M NaOH. The formula weight of KHP is 204.233 g/mol.

Can anyone tell me 5 things that would happen if we didn't have helium?

In which location would a free neutron from a decaying U-235 atom be most likely to cause another atom to go split? A. In a sample of naturally occurring uranium B. In a sample of enriched uranium C. In a sample of rock or soil D.

How many different values of l are possible in the third principal level?

15 mL of a 0.16 M solution of glucose was diluted until the total volume reached 95 mL. What is the concentration of new solution?

Mendeleev used his arrangement of elements in order of increasing mass and repeated properties to predict the mass and properties of undiscovered elements. true or false

Describe the basic characteristics of each group of elements on the periodic table

When a 0.1 M H2SO4 solution is added to pulverized blackboard chalk, the following reaction takes place. CaCO3 (s) + H2SO4 (aq) - -> CaSO4 (s) + CO2 (g) + H2O (l) At 25°C, the reaction is spontaneous and has: A. negative ΔG' and positive ΔS' B.