Iodine has 53 protons and 74 neutrons: what is the atomic number? What is the atomic mass?

How many sublevels of an atom are there? And how does it relate to the periodic table

If the equation, C2H5OH (l) + 3O2 (g) → 2CO2 (g) + 3H2 (l), were performed in a laboratory at room temperature, both of the gas volumes: would depend on the surrounding temperature and pressure conditions must always be equal because the molar

What is a magnetic separation?

Sublimation and boiling both happen at the surface of the substance. a. True b. False

What two conditions meat be met in order for a collision to be effective

Elements have been discovered with up to how many energy levels

How many minutes are in 33.6 days

Select the equations that are correctly balanced. a. H2O + 2O2 → H2O2 b. Fe2O3 + 3H2 → 2Fe + 3H2O c. Al + 3Br2 → AlBr3 d. CaCO3 → CaO + CO2

Identify the reactants and products of 3ba (c2h2o2) 2 (aq) + 2na3po4 (aq) = ba3 (po4) 2 (s) + 6nac2h2o2 (aq)

How many moles of copper are needed to react with sulfur to produce 0.25 moles of copper sulfide