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ch4aika [34]
3 years ago
14

Question 19

Biology
2 answers:
Crazy boy [7]3 years ago
8 0

Answer: A they are toxic

Explanation:

Luden [163]3 years ago
7 0

Answer:

Comment relation is recommended when working with non-polar solvent because they are toxic. Therefore, the correct answer to the question is option A.

Explanation:

The ventilation is required for working with non-polar solution because they are toxic in nature and they could harm. The ventilation to a room is required for the exchange of gases. All the harmful and toxic gases are exhausted out through ventilation and pure air is fixed in the room.

The ventilation is required not only for experiment room but also in the room which is operated with heat are there is work with the heat. The heat expelled out during the course of the experiment could alter the next experiment or the air.  

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The zinc chloride produced by the reaction is in what state
ANEK [815]

Answer: Solution in Water

Explanation:

I believe this refers to the reaction between Zinc and Hydrochloric acid.

When this happens, the solution will be Zinc Chloride but as it happened in a solution (the acid), the resulting Zinc Chloride salt would be in aqueous form which means that it would be a solution in water which is the other product of this reaction.

Had the zinc reacted with gaseous HCI, it would have resulted in a Zinc Chloride with no liquid in it.

4 0
2 years ago
Cells starting mitosis and meiosis begin with what set of chromosomes. True or False
Arisa [49]

Answer:

with haploid or diploid set of chromosomes. True

Explanation:

There are two types of cells in the body, haploid cells and diploid cells. The biggest difference is related to the number of chromosomes that each cell contains, while diploid cells contain two chromosomes (2n), haploid cells contain a chromosome (1n).

Features:

1. A haploid cell has only one set of chromosomes (n), while diploid cells have two sets of chromosomes (2n).

2. In humans, somatic cells are diploid, while gametes are haploid.

3. Diploid cells develop as a result of mitotic cell division, while haploid cells develop as a result of meiotic cell division.

4. Mitosis produces 2 identical daughter cells, where both stem and daughter cells are diploid. In meiosis, a diploid cell divides twice to produce 4 haploid daughter cells.

5. Humans and most animals are considered diploid organisms, while algae and fungi are examples of organisms that are haploid in most of their lives. Male bees, wasps and ants are also haploid.

5 0
3 years ago
For several years,researchers have atempted to produce AB artificial blood for transfusions. Artificial blood would most likely
Yuliya22 [10]

Answer:

It is a good concept but can't be used.

Explanation:

Producing artificial blood is a good concept but it can't take the place of real human blood because the artificial blood has many disadvantages which can cause great damage to our body such as binds nitric acid that affected blood flow, increases the level of bilirubin, amylase and lipase in the blood and also cause overload of iron in your organs or tissues so that's why it can't be used instead of original human blood but may be in the future if these complications are removed.

8 0
3 years ago
IN YOUROWN WORDS explain what is hypnosis?
iogann1982 [59]
<span>the induction of a state of consciousness in which a person apparently loses the power of voluntary action and is highly responsive to suggestion or direction. Its use in therapy, typically to recover suppressed memories or to allow modification of behavior by suggestion, has been revived but is still controversial.</span>
4 0
3 years ago
Trpical rainforest, savannah, and dessert biomes are all classified as which type of climate
Darina [25.2K]

Tropical rainforest, savannah, and dessert biomes are all classified as climax community should be some form of seasonal forest or woodland

5 0
3 years ago
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