Question

Question 1
Question 2
Question 3
A) Based on the naming rules for ions, which of the following is a negatively charged ion (not a
polyatomic ion)? (1 point)
chlorite
chlorine
chloride
chlorate
A) When moving across a period from left to right in the periodic table (excluding transition elements)
which trend occurs? (1 point)
The energy levels increase by one.
The energy levels decrease by one.
Valence electrons increase by one.
Valence electrons decrease by one.
A) Name the ionic compound represented by the following chemical formula: CuO. (1 point)
copper (II) oxide
copper (II) oxygen
copper dioxide
copper oxide
Question 4
Question 5
A) Which of the following comes first in the name of an ionic compound? (1 point)
the number of ions present
the neutral ion
the negatively charged ion
the positively charged ion
A) Write the chemical formula of the ionic compound magnesium chlorate. The magnesium ( ) ion
has a charge. Chlorate ( ) has a charge. (1 point)
Mg
+2 ClO3 −1
Mg(ClO3)
Mg(ClO3)2
Mg ( ) 2 ClO4
Mg ( ) 2 ClO3

Answers

GPT-4o mini
Here are the answers to the questions you've listed:

1. **Based on the naming rules for ions, which of the following is a negatively charged ion (not a polyatomic ion)?**
- **Answer: chloride.** (Chloride is the anion derived from chlorine, with a charge of -1.)

2. **When moving across a period from left to right in the periodic table (excluding transition elements) which trend occurs?**
- **Answer: Valence electrons increase by one.** (As you move across a period, each element has one more valence electron than the previous one.)

3. **Name the ionic compound represented by the following chemical formula: CuO.**
- **Answer: copper (II) oxide.** (Cu in this formula has a +2 oxidation state, and O is -2, combining to form copper (II) oxide.)

4. **Which of the following comes first in the name of an ionic compound?**
- **Answer: the positively charged ion.** (In ionic compounds, the positive ion (cation) is named first, followed by the negative ion (anion).)

5. **Write the chemical formula of the ionic compound magnesium chlorate. The magnesium ( ) ion has a charge. Chlorate ( ) has a charge.**
- Magnesium ion: **Mg²⁺** (charge of +2)
- Chlorate ion: **ClO₃⁻** (charge of -1)

To balance the charges, you will need two chlorate ions for one magnesium ion. The formula will be:
- **Answer: Mg(ClO₃)₂.**

If you have further questions or need additional explanations, feel free to ask!

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