There are 2 possible correct answers. Those answers are A and C because atoms "fuse together" by sharing electrons, and both compounds react to water, as they both dissolve in it. I would choose C as my answer, though.
Chemical reaction: NaHCO₃ + HCl → NaCl + CO₂ + HCl.
Reaction occurs between sodium bicarbonate (sodium hydrogen carbonate) and hydrochloric acid. For example, hydrogen carbonate<span> mixed with water is used like </span>antacid (neutralizes <span>stomach acidity), contverts </span>stomach acid (hydrochloric acid) to carbon dioxide.
1.45 moles of P2O3 contains 1.45 moles of O3 which means 4.35 moles of O:
1.45 × 3 = 4.35 moles of O
Then you can calculate moles of O2 by dividing it by 2:
4.35 moles ÷ 2 = 2.175 moles of O2 needed
Solubility of barium chloride at 30 degree Celsius is 38.2g /100 g water and solubility of barium chloride at 60 degree Celsius is 46.6 g / 100 g water.
The quantity of barium chloride that is dissolved in water at 30 degree Celsius = 38.2 * [150/100] = 57.30 g.
The quantity of barium chloride that will be dissolved in water at 60 degree Celsius = 46.6 * [150/100] = 69.90 g
The difference between these quantities is the amount of barium chloride that can be dissolved by heating the barium chloride to 60 degree Celsius.
69.90 - 57.30 = 12.60 g. Therefore, 12.60 g of barium chloride can still be dissolved in the water by heating the water to 60 degree Celsius.
A wave.
Scientists now recognize that light can behave as both a particle and a wave.