Which element is the most active nonmetal?

What might be useful for adding solids to a tube A / syringe B / wire crimpers C / funnel D / shovel

Find the number of moles of water that can be formed if you have 150mol of hydrogen gas and 70mol of oxygen gas.

A 5.34 g sample of an aluminum alloy is reacted with hydrochloric acid to produce aluminum chloride and hydrogen gas. At a temperature of 298 Kelvin and a pressure of 1.03 atm, a volume of 1.53 L of hydrogen gas is collected.

When electrons are removed from the outermost shell of a calcium atom, the atom becomes an anion that has a larger radius than the atom. an anion that has a smaller radius than the atom. a cation that has a larger radius than the atom.

Ten liters of distilled water was mixed with 20 liters of a15% acid solution. what is the concentration of acid in the new solution?

Write the formula of each compound, and determine its molecular (formula) mass: (a) sodium dichromate; (b) ammonium Perchlorate; (c) magnesium nitrite trihydrate.

Calculate the pH of a (0.000765) M solution of KOH

What kind of solid is crystalline boron

Cl2F2 (g) + 2NaCl (aq) = 2NaF (aq) + Cl2 (g)

Is there more than100 elements in the periodic table?