A gas has a volume of 80.0ml at a temperature of 293 C and 101.3kPa of ressure. what is the volume of the sample when the temperature changes to 586.0 k and the pressure to 50.65 kPa?

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?