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3 years ago

Select all that apply.

1 answer:

6 0

For the answer to the question above, those that apply are: 
- salt is not chemically bonded to water 
- the ratio of salt to water may vary 
- salt and water retain their own chemical properties
I hope my answer helped you

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I don’t know the answers to these pls help

stepladder [879]

Answer:

4. Option C. Pentane.

5. Option D.

Explanation:

4. Hydrocarbons are compound containing carbon and hydrogen only. Hydrocarbons are said to be saturated when they contain only carbon to carbon single bond. All alkanes are saturated hydrocarbon.

The correct answer is pentane.

5. Isomerism is the phenomenon whereby two or more compounds have the same molecular formula but different structural patterns. The compounds involved are called isomers.

A careful observation of the diagram above shows that only option D satisfied the definition of Isomerism as the two compound both have the same molecular formula as C3H8O but different structural patterns.

Note: option C does not contain isomers as Isomerism can not occur in a compound having just 1 carbon atom.

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3 years ago

The new hybrid car can get 51.5 km/gal. It has a top speed of 40000.00 cm/min and is 4m long. How fast can the car go in m/hr?

horrorfan [7]

Answer:

The anawer of this question is 0.024 m/h

Explanation:

Other explanations of the question are additional.

4 0

3 years ago

8. Skin cancer is a disease that occurs when skin cells grow in an uncontrolled way. It can be caused by UV

Levart [38]

Answer:

Explanation:

I think none of the above, because when caused by a UV light it damages the cells. And if enough builds up overtime it causes uncontrollable growth and leads to skin cancer.

Hope that helped? It might be another answer honestly.

3 0

2 years ago

NEED ANSWER, ASP! WILL MARK BRAINLIEST!!

Phoenix [80]

Answer:

Answers are below

Explanation:

1. A

2. B

3. A

4. A

5. A

6. B

7. A

8. B

9. B

10. B

11. A, B

12. A

13. A

14. A,B

15. A

16. Not sure

17. Maybe both not sure

18. A

7 0

3 years ago

Which one would be expected to happen? If one of the buffers that contribute to pH stability in human blood is carbonic acid (H2

vredina [299]

Answer:

The correct answer is option C.

Explanation:

$H_2CO3+H_2O\rightleftharpoons HCO_3^{-} + H_3O^+$

On increasing the pH of the blood the hydronium ions concentration will decrease which will result in decrease in concentration of hydronium ions at the equilibrium state of hydrogen carbonate.

Le-Chatelier's principle:

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

According to Le-Chatelier's principle , on decrease in a concentration of the product the equilibrium moves in forward correction to re-establish itself.

So, on increasing the pH, the hydronium ions concentration will decrease which results in disassociation of more hydrogen carbonate to maintain the pH of the blood.

Hence, the correct answer is option C.

5 0

3 years ago