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ce in H0? IS. Which statement is true concerning the solubility of a substance y

ID: 948002 • Letter: C

Question

ce in H0? IS. Which statement is true concerning the solubility of a substance y soluble in water. A) Polar and nonpolar substances are equally soluble in water B) A nonpolar substance is soluble in water. C) All substances are soluble in water larity of the D) Solubility of a substance in water has no relationship to the polarity of t E) A polar substance is soluble in water. is the formula for the ionic compound formed when aluminum and sulfur combine? substance being dissolved 16. What is the formula for the ionic compound formed when aluminum 17. What is the name of the compound (NIH)SO4? A) ammonium sulfide B) ammonia sulfate C) ammonia sulfoxide D) ammonium sulfate E) diammonium sulfate 18. What is the proper name for CuC1? A) B) copper chloride copper (I) chloride C) D) copper (II) chloride copper monochloride 19. The correct formula for potassium carbonate is A) KCO B) K CO C) KjCO D) PCO3 E) K2CO4 20. Which chemical formula is net correct? A) Na2HCO B) NaNO3 C) NayPO D) NaOH E) More than one of the above formulas is not correct. 21. Predict the geometry and polarity of CH20 A) Linear, polar B) tetrahedral, nonpolar C) Trigonal planar, polar D) trigonal planar, nonpolar E) trigonal pyramidal, polar

Explanation / Answer

I am giving answers to first six questions (page 1) . Please post the other questions as a separate question.

15.

like dissolves like, i.e polar H2O dissolves polar compounds. option E is correct.

16.

Al charge: +3

S charge : -2

so compound:B) Al2S3

17.

D) ammonium sulphate

18.

B) Copper(1) chloride

19.

K : +1

CO3: -2

B) K2CO3

20. A) Na2HCO3

21.

CH2O

no. of valence electron= 4+2+6= 12/8=1+4/2 =1+2

1 bond pair 2 lone pair

C) trigonal planar, non polar