( of 85 CIRCLE THE CORRECT ANSWER. 1. (I pt) If the solubility of sodium chlorid
ID: 1039649 • Letter: #
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( of 85 CIRCLE THE CORRECT ANSWER. 1. (I pt) If the solubility of sodium chloride at 25°C is 36.0 g/100 g water, which of the following best describes what eventually forms after 15.0 grams of sodium chloride is mixed with 50.0 grams of water at 25 C? A. a saturated solution with some undissolved solid B. an unsaturated solution with some undissolved solid C. a saturated solution with no undissolved solid D. an unsaturated solution with no undissolved solid E. a supersaturated solution (I pt.) The formula of the ionic compound that would be formed when calcium and fluorine react is: A. CaF 2. B. Ca2F C. CaF2 D. F Ca E. FCa (I pt.) Which of the following compounds is likely to have covalent bonds? A. LiBr 3. B. CsF C. BaCl2 D. Cr2O E. NO2 (I pts.) Which of the following substances has bonding best described as ionic bonding? A. SiO2 4. B. TiO2 C. SO2 D. CO2 E. O2Explanation / Answer
36g of NaCl dissolve in 100g of water
15g of NaCl dissolve in 50g of water
c. a saturated solution with no undissolved solid
2. calcium fluoride is CaF2 (Ca^2+ , F^- )
C. CaF2
3. covalent bond formed between the non metals
E.NO2
4. TiO2
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