Homework Answers
first write the formula and then calculate the charge
and molar mass and moles as follows
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6. The molecular formula of the ionic compound calcium nitrate is Ca(NO3)2 a. Based on the...
5. The elements fluorine (F) and calcium (Ca) form the ionic compound calcium fluoride. a. When...
5. The elements fluorine (F) and calcium (Ca) form the ionic compound calcium fluoride. a. When fluorine forms an ion, what is its charge? b. When calcium forms an ion, what is its charge? c. Write the empirical formula for the ionic compound formed by fluorine and calcium.
A sample of calcium nitrate, Ca(NO3)2, with a formula weight of 164 g/mol. The atomic weight of...
A sample of calcium nitrate, Ca(NO3)2, with a formula weight of 164 g/mol. The atomic weight of Ca is 40.078 g/mol. How many grams of Ca are present in a 100 g sample of Ca(NO3)2?
For the reaction Na2CO3+Ca(NO3)2⟶CaCO3+2NaNO3 how many grams of calcium nitrate, Ca(NO3)2, are needed to react completely...
For the reaction Na2CO3+Ca(NO3)2⟶CaCO3+2NaNO3 how many grams of calcium nitrate, Ca(NO3)2, are needed to react completely with 55.5 g of sodium carbonate, Na2CO3?
Please answer with explanations 1. The formula of calcium nitrate (III) is: A. Ca(NO3)2 B. CaNO3...
Please answer with explanations
1. The formula of calcium nitrate (III) is: A. Ca(NO3)2 B. CaNO3 C. CaNO2 D. Ca(NO2)2 E. Ca(NO2)3 2. The formula of ethanol is: A. CH3OH B. CH3CH2OH C. CH3OCH3 D. CH3COOH E. none of the above 3. Oxidation numbers of chlorine in Cl2, NaCI, KCIO3, respectively are: A. -1, 0, +5 B. 0, -1, +5 C. 0, +1, +3 D. -1, +1,+5 E. 0, -1, -5
You, the chemistry detective, have obtained a water-insoluble ionic compound with the formula XYZ3 where X...
You, the chemistry detective, have obtained a water-insoluble ionic compound with the formula XYZ3 where X represents a metal, and Y and Z are both nonmetals. Answer the questions below, identify the ionic compound and find its percent composition by mass. (25 points) a) The metal X is a member of transition metals of the 4th period. It is one of the three elements that have the highest electronegativity among the transition metals of the 4th period, but unlike the...
If 7.79 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2...
If 7.79 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2 + 2Na3PO4 Ca3(PO4)2 +6NaNO3 what is the theoretical yield of sodium nitrate, NaNO3, in grams? (Enter your answe the hundredth place.)
If 3.37 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2...
If 3.37 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2 + 2Na3PO4 +Ca3(PO4)2 +6NaNO3 what is the theoretical yield of sodium nitrate, NaNO3, in grams? (Enter your answ the hundredth place.)
Question 3 3 pts All of the properties below are associated with calcium nitrate Ca(NO3)2 or...
Question 3 3 pts All of the properties below are associated with calcium nitrate Ca(NO3)2 or C6H12. Which one of these physical and chemical properties would be associated only with cyclohexane, C6H12? contains ionic bonds. produces ions when dissolved in water. insoluble in water. melts above 500°C. Question 4
Question 2 If 6.2 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according...
Question 2 If 6.2 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2 + 2Na3PO4Ca3(PO4)2 + 6NaNO3 what is the theoretical yield of sodium nitrate, NaNO3, in grams? (Enter your answer to the hundredth nlace
Question 2 If 6.2 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according...
Question 2 If 6.2 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2 + 2Na3PO4Ca3(PO4)2 + 6NaNO3 what is the theoretical yield of sodium nitrate, NaNO3, in grams? (Enter your answer to the hundredth nlace
5. The elements fluorine (F) and calcium (Ca) form the ionic compound calcium fluoride. a. When fluorine forms an ion, what is its charge? b. When calcium forms an ion, what is its charge? c. Write the empirical formula for the ionic compound formed by fluorine and calcium.
Please answer with explanations
1. The formula of calcium nitrate (III) is: A. Ca(NO3)2 B. CaNO3 C. CaNO2 D. Ca(NO2)2 E. Ca(NO2)3 2. The formula of ethanol is: A. CH3OH B. CH3CH2OH C. CH3OCH3 D. CH3COOH E. none of the above 3. Oxidation numbers of chlorine in Cl2, NaCI, KCIO3, respectively are: A. -1, 0, +5 B. 0, -1, +5 C. 0, +1, +3 D. -1, +1,+5 E. 0, -1, -5
You, the chemistry detective, have obtained a water-insoluble ionic compound with the formula XYZ3 where X represents a metal, and Y and Z are both nonmetals. Answer the questions below, identify the ionic compound and find its percent composition by mass. (25 points) a) The metal X is a member of transition metals of the 4th period. It is one of the three elements that have the highest electronegativity among the transition metals of the 4th period, but unlike the...
If 7.79 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2 + 2Na3PO4 Ca3(PO4)2 +6NaNO3 what is the theoretical yield of sodium nitrate, NaNO3, in grams? (Enter your answe the hundredth place.)
If 3.37 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2 + 2Na3PO4 +Ca3(PO4)2 +6NaNO3 what is the theoretical yield of sodium nitrate, NaNO3, in grams? (Enter your answ the hundredth place.)
Question 3 3 pts All of the properties below are associated with calcium nitrate Ca(NO3)2 or C6H12. Which one of these physical and chemical properties would be associated only with cyclohexane, C6H12? contains ionic bonds. produces ions when dissolved in water. insoluble in water. melts above 500°C. Question 4
Question 2 If 6.2 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2 + 2Na3PO4Ca3(PO4)2 + 6NaNO3 what is the theoretical yield of sodium nitrate, NaNO3, in grams? (Enter your answer to the hundredth nlace
Question 2 If 6.2 grams of calcium nitrate, Ca(NO3)2, react with excess sodium phosphate, Na3PO4, according to 3Ca(NO3)2 + 2Na3PO4Ca3(PO4)2 + 6NaNO3 what is the theoretical yield of sodium nitrate, NaNO3, in grams? (Enter your answer to the hundredth nlace
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