DERES At approximately what temperature does the
solubility of sodium chloride, NaCl, match the
solubility of potassium dichromate, K2Cr207?
30 °C
60 °C
50 °C
83 °C

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a is the answer to this question

explanation:

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."