Bromine (Br2) is a liquid at room temperature and pressure.
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Potassium chloride is a solid state at room temperature.
Br2 + 3NaHSO3 = 2NaBr + NaHSO4 + H2O + 2SO2
There are 1 mole of atoms in 44.0 g of Br2. Since Br2 is a diatomic molecule, there are 2 moles of bromine atoms in one mole of Br2. Therefore, there are 2 moles of bromine atoms in 44.0 g of Br2.
Yes, Br2 is an oxidizing agent.
The balanced equation for Ca + Br2 → CaBr2 is: 2Ca + Br2 → 2CaBr2