If an element ends in s2p4 how many e - will it need to gain to have an octet

Which description is of the man in the graveyard? A) crying B) hungry C) fat cheeks D) undersized

I have 345mL of a 1.5M NaCl solution. If I boil the water until the volume of the solution is 250mL, what will the molarity of the solution be?

What is the pressure of 1.9 mols of nitrogen gas in a 9.45 L tank and at a temperature of 228 K

How to calculate molarity of stock solution?

You have two solutions separated by a semipermeable membrane that only allows water to pass through it. The right side of the membrane has 2.0 moles of sucrose (MW 324g/mol), and the left side has 2.0 moles of fructose (MW 180g/mol).

If you change the state of something, say, liquid to solid, is it a physical or chemical change?

What type of calorimeter would be best to use if you wanted to measure the heat that is released when gasoline is burned?

Tina has a sample of gaseous water at a temperature of 400 C and a pressure of 4 atm. If Tina increases the pressure to 200 atm, will the gaseous water liquefy? Why or why not?

Label the molecular shape around each of the central atoms in the amino acid glycine. hint

Which has more atoms, 2moles of carbon or 2 moles of aluminum