Answer:
b) H2CO3
Explanation:
The conjugate acid of HCO3– is Carbonic acid (H2CO3).
You would divide 140 (How many electrons) by the numbers of lines.
Answer:
1. H-O-H H-H
Explanation:
1. A water molecule is one oxygen connected to two hydrogen atoms, while a hydrogen molecule is two hydrogen atoms connected to each other.
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.