```plaintext
| | Mass (g) | Temperature (°C) |
|---------------------------|---------------|-------------------|
| Erlenmeyer Flask #1 | type your | type your text |
| | text here | |
|---------------------------|---------------|-------------------|
| Erlenmeyer Flask #1 + HCl | type your | type your text |
| | text here | |
|---------------------------|---------------|-------------------|
| Erlenmeyer Flask #2 | type your | type your text |
| | text here | |
|---------------------------|---------------|-------------------|
| Erlenmeyer Flask #2 + NaOH| type your | type your text |
| | text here | |
|---------------------------|---------------|-------------------|
| Erlenmeyer Flask #2 + HCl | type your | type your text |
| + NaOH after Reaction | text here | |
|---------------------------|---------------|-------------------|
| Observations | type your text here |
|---------------------------|------------------------------------|
```



Answer :

Let's solve the problem using the principles of arithmetic and algebra.

1. Identify the given amounts:
- Initial amount of money: 23 units.
- Number of bagels to be bought: 5.
- Cost per bagel: 3 units.

2. Calculate the total cost of the bagels:
- To find the total amount of money spent on bagels, multiply the number of bagels by the cost per bagel:
[tex]\[ \text{Money spent} = \text{Number of bagels} \times \text{Cost per bagel} \][/tex]
Therefore:
[tex]\[ \text{Money spent} = 5 \times 3 = 15 \text{ units} \][/tex]

3. Determine the remaining amount of money:
- Subtract the total cost of the bagels from the initial amount of money to find out how much money is left:
[tex]\[ \text{Money left} = \text{Initial money} - \text{Money spent} \][/tex]
Therefore:
[tex]\[ \text{Money left} = 23 - 15 = 8 \text{ units} \][/tex]

4. Summary of the results:
- The total money spent on bagels is 15 units.
- The amount of money left after the purchase is 8 units.

The final answers are:
- Money spent: 15 units
- Money left: 8 units