The volume of a sample of hydrogen gas was decreased from 14.19l to 7.48 l at constant temperature. if the final pressure exerted by the hydrogen gas sample was 6.14 atm, what pressure did the hydrogen gas exert before its volume was decreased?

The difference between atomic mass and molar mass

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate