In the spring of 2008,petrol cost 1.179 per liter in london. on the same day, the exchange rate was$1= 0.504 . what was the price of London petrol in dollars ($)per gallon (1 gal= 3.7854L)

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

Is a chemical message sent by another individual.

What changes occur in the reaction indicated by the equation? check all that apply. the hydrogen nucleus loses protons. the oxygen nucleus gains protons. the bond in h2 is broken, and new bonds are formed between hydrogen and oxygen atoms. each electron associated with a hydrogen atom is shared with an oxygen atom.