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Valentin [98]
2 years ago
7

I need help with my science work! It’s due tomorrow!

Chemistry
1 answer:
Greeley [361]2 years ago
4 0
1. related, not
2. how fast molecules vibrate
3. how fast molecules vibrate, the number of molecules
4. higher temperature
5. lower temperature
6. more heat
7. less heat
8. degrees
9. joules
10. expand

1. true
2. false
3. false
4. true
5. false
6. false
7. false
8. true
9. false
10. true
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tatuchka [14]

Answer:

Curd, lemon juice, orange juice and vinegar taste sour. These substances taste sour because they contain acids. The chemical nature of such substances is acidic. The word acid comes from the Latin word acere which means sour.

8 0
3 years ago
HELP ASAP
Ghella [55]

potassium reacts the most vigorously.

7 0
3 years ago
Calculate the mass percent by volume of 330.1 g of glucose (C₆H₁₂O₆, MM = 180.2 g/mol) in 325 mL of solution.
nadezda [96]

Answer: The mass percent by volume is 101.6%

Explanation:

The solution concentration expressed in percent by volume means that the amount of solute present in 100 parts volume of solution.

It is represented in formula as :

mass percent by volume =\frac{\text {mass of solute}\times 100}{\text {Volume of solution in ml}}\%

Given : mass of glucose = 330.1 g

volume of solution = 325 ml

Thus mass percent by volume =\frac{330.1g\times 100}{325ml}=101.6\%

Thus the mass percent by volume is 101.6%

3 0
2 years ago
Which of these is an example of a chemical change?
Lady_Fox [76]
The only one example of a chemical change would be:

B. Leaving cheese out to get moldy.

Because there is a chemical reaction.
6 0
2 years ago
Read 2 more answers
What is the number of molecule(s)?
Gemiola [76]

1. 4NHCO3

2. 3CaCO3

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ans ( a). NHCO3

5 0
3 years ago
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