What is the most suitable technique to seperate the following. 1. Helium from a mixture of helium and methane.
2.Ethanol from a mixture of ethanol and propane.

Calculate the number of moles of ethane in 100 grams

What is a metal replacement reaction

Write the formula for the following chemicals. 7. e. trinitrogen tetraoxide a calcium phosphate f. magnesium acetate b. potassium sulfide g nickel(iii) cyanide c carbon dioxide h. silver sulfate d. cobalt(ii) chloride