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C. Number of ionic bonds
D. All of these

Q4. The number of unpaired electrons in the complex ion [tex]$\left[\left. CoF _6\right|^3\right.$] is

A. 3
B. 2
C. 4
D. 0

Q5. Among [tex]$[ Ni ( CO ) 4]$[/tex], [tex]$\left[ Ni \left( NH _3\right) 4\right]$[/tex], and [tex][tex]$[ Ni ( Cl ) 4]^2$[/tex][/tex] species, the oxidation states of the Ni atom are, respectively,

A. [tex]$0, +3, +2$[/tex]
B. [tex]$0, 0, +2$[/tex]
C. [tex]$+2, +3, 0$[/tex]
D. [tex]$+2, 0, +3$[/tex]

Sagot :

GinnyAnsweridn
Sure, let's go through the solution step-by-step in a detailed manner.

First, let us define the amount of money Olivia initially has:
- Olivia has [tex]$23. Now, let's specify the number of bagels Olivia bought: - 5 bagels. Next, identify the cost per bagel: - Each bagel costs $[/tex]3.

Calculate the total cost of the 5 bagels:
- To find the total cost, multiply the number of bagels by the cost per bagel:
- [tex]\( 5 \text{ bagels} \times 3 \text{ dollars per bagel} = 15 \text{ dollars} \)[/tex].

Then we need to find out how much money Olivia has left after purchasing the bagels:
- Subtract the total cost of the bagels from the initial amount of money Olivia had:
- [tex]\( 23 \text{ initial dollars} - 15 \text{ dollars spent} = 8 \text{ dollars left} \)[/tex].

Based on these calculations:
- The total amount of money Olivia spent is [tex]$15. - The amount of money Olivia has left is $[/tex]8.

So, the answer is:
- Olivia spent [tex]$15, and she has $[/tex]8 left.
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