Which of the following is a chemical change? (1 point)
a. ice melting
b. ice being car...
Chemistry, 23.09.2019 23:30 swaggg7108
Which of the following is a chemical change? (1 point)
a. ice melting
b. ice being carved
c. water boiling
d. water breaking down into hydrogen and oxygen
Answers: 1
Chemistry, 21.06.2019 17:00, zaehairston78531
What is the nature of the ca-cl bond in a molecule of calcium chloride (cacl2) if the electronegativity value of calcium is 1.0 and that of chlorine is 3.16?
Answers: 1
Chemistry, 22.06.2019 00:30, rscott2649
In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right
Answers: 1
Chemistry, 22.06.2019 06:00, Sarahinator04
0.09 moles of sodium sulfate in 12 ml of solution
Answers: 3
Chemistry, 22.06.2019 08:00, kleathers97
Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in cl−. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42−. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl− ion. its concentration is half that of the cl− ion. its concentration is twice that of the cl− ion. its concentration is one-third that of the cl− ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback
Answers: 3
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