Podcast
Questions and Answers
How many chloride ions are present for each magnesium ion in magnesium chloride?
How many chloride ions are present for each magnesium ion in magnesium chloride?
- 3
- 1
- 4
- 2 (correct)
Which of the following is an example of a polyatomic ion?
Which of the following is an example of a polyatomic ion?
- Magnesium (Mg2+)
- Ammonium (NH4+) (correct)
- Chloride (Cl-)
- Sulphide (S2-)
In writing the chemical formula for an ionic compound, what is the correct order in which the symbols of cation and anion should be written?
In writing the chemical formula for an ionic compound, what is the correct order in which the symbols of cation and anion should be written?
- Cation symbol twice followed by anion symbol
- Anion symbol twice followed by cation symbol
- Anion symbol first followed by cation symbol
- Cation symbol first followed by anion symbol (correct)
What is the valency of potassium based on the information provided in Table 3.6?
What is the valency of potassium based on the information provided in Table 3.6?
In the compound calcium oxide, what is the ratio by mass of calcium to oxygen?
In the compound calcium oxide, what is the ratio by mass of calcium to oxygen?
If a compound has a valency of 2 and combines with an ion having a valency of 1, what is the chemical formula of this compound according to the principles discussed in the text?
If a compound has a valency of 2 and combines with an ion having a valency of 1, what is the chemical formula of this compound according to the principles discussed in the text?
What is the main difference between a mixture and a compound?
What is the main difference between a mixture and a compound?
Why do elements react to form new compounds?
Why do elements react to form new compounds?
When an element reacts with another element to form a compound, what is the significance of the valency?
When an element reacts with another element to form a compound, what is the significance of the valency?
What is the role of ionic compounds in the formation of polyatomic ions?
What is the role of ionic compounds in the formation of polyatomic ions?
