How many O2 molecules are present in 0.470 g of oxygen

gas? Can you guys tell me how answer this kind of problem ... I appreciate it.

A solution in which the maximum amount of solute is dissolved is said to be

List 2 salts that would NOT be neutral and show/explain why.

Match the term to its description. Ammonia A. nitrogen fixers Nitrogen gas B. NH3 Nitrification C. unusable by most organisms Lightning and bacteria D. nutrient overload in the environment Eutrophication E. conversion of ammonia to nitrates

The molality of a solution that was made by dissolving NaCl in 1.5 kg of water is 0.40 m. If the molar mass of NaCl is 58.44 g/mol, what is the mass of NaCl that was dissolved? 0.27 g 23 g 35 g 39 g

What is hybridisation

How many grams of methane, CH4 are produced from the complete reaction of 5.15 moles of carbon monoxide, CO

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