Calculate the quantity of H+ ions present in 200 cm3 of a solution of nitric acid with a concentration of
0,25mol. dm^-3

Drive down any three characteristic of modern periodic table

What is the molar mass of a gas that has density of 2.054 g/l

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space