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ICE Princess25 [194]
2 years ago
7

A list of different ions is shown. Which combination of ions will result in an ionic bond?

Biology
1 answer:
Rufina [12.5K]2 years ago
8 0

Answer:

NaF

Explanation:

NaF is an ionic compound because Na gives an electron to F, causing it to become Na+ and F to become F-

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Answer:

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Explanation:

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3 years ago
This energy is absorbed by pigments such as ____ which is presented in all photosynthetic organisms?
Shalnov [3]

Answer:

Chlorophyll

Explanation:

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Conception occurs when the____ gamete fertilizes the ____gamete. female and male or male and female?
irga5000 [103]
Male first, female second.
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All of the following statements about enzymes are true EXCEPT
kari74 [83]

Answer:

(D) Enzymes can function only within living cells.

Explanation:

<em>Enzymes are biological molecules that are proteinous in nature and speed up the rate of biological reactions.</em>

Option A is true because enzymes are not used up or changed when they are used to catalyze reactions

Option B is true. Enzymes are very specific with regards to the reactions they take part in.

Option C is true. Some enzymes contain non-protein component that assist them in their functioning. These non-protein components are called co-factors.

Option E is true. Because enzymes are proteinous in nature, they can be destroyed/denatured by high temperatures.

<em>The only untrue option is D. Some enzymes can function outside living cells. For example, the enzymes involved in digestion can function not just within living cells but also outside it. The functions of some of the digestive enzymes can be demonstrated in the laboratory.</em>

The correct option is D.

8 0
3 years ago
What are the steps in the life cycle of a typical massive star?​
umka2103 [35]

Answer:

Stars about the size of our sun go through the same first four stages as does any other star. They begin their lives as a nebula, then become a Protostar, eventually becoming a main sequence star and finally a red giant.

Explanation:

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