The density of an unknown gas is at and 101000 Pa . (a) Calculate the molar mass of the unknown gas. (5) (b) The unknown gas ...

Boric acid is a white solid often used as an antiseptic. The formula of boric acid can also be written as . (i) Draw a dot-an...

Boric acid is a white solid often used as an antiseptic. Boric acid contains by mass of boron, of oxygen and the remainder is...

This question is about magnesium, magnesium oxide and magnesium sulfate. Hydrated crystals of magnesium sulfate, , can be mad...

This question is about magnesium, magnesium oxide and magnesium sulfate. Magnesium sulfate can be made by reacting magnesium ...

This question is about magnesium, magnesium oxide and magnesium sulfate. The table gives some data about the electrical condu...

This question is about magnesium, magnesium oxide and magnesium sulfate. Magnesium oxide and magnesium sulfate are ionic comp...

This question is about magnesium, magnesium oxide and magnesium sulfate. A sample of magnesium contains three isotopes and ha...

This question is about 2-Chloropropane. 2-Chloropropane can also be produced from the reaction of propene with hydrogen chlor...

This question is about 2-Chloropropane. 2-Chloropropane can also be produced from the reaction of propene with hydrogen chlor...