Chapter 2: Q84AE (page 46)
Question: What are the formulas of the compounds that correspond to the names given in the following table?
Compound Name | Formula |
Carbon tetrabromide | |
Cobalt (II) phosphate | |
Magnesium chloride | |
Nickel (II) acetate | |
Calcium nitrate |
Answer
The formula for the given compound names can be found.
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Q.20. When mixtures of gaseous H2and gaseous Cl2 react, a product forms that has the same properties regardless of the relative amounts of H2 and Cl2 used.
a. How is this result interpreted in terms of the law of definite proportion?
b. When a volume of H2 reacts with an equal volume of Cl2 at the same temperature and pressure, what volume of the product having the formula HCI is formed?
Question:Complete the following table to predict whether the given atom will gain or lose electrons informing the ion most likely to form when in ionic compounds.
Atom | Gain (G) or Lose (L) electrons | Ion Formed |
K | L | K+ |
Cs | L | Cs+ |
Br | G | Br- |
S | G | S2- |
Se | G | Se2- |
Two elements, R and Q, combine to form two binary compounds. In the first compound, 14.0g of R combines with 3.00g of Q. In the second compound, 7.00g of R combines with 4.50g of Q. Show that these data are in accord with the law of multiple proportions. If the formula of the second compound is RQ, what is the formula of the first compound?
What is the distinction between atomic number and mass number? Between mass number and atomic mass?
Q.17. Why is calcium dichloride not the correct systematic name for CaCl2 ?
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