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Nesterboy [21]
3 years ago
13

When fat comes in contact with sodium hydroxide, it produces soap and glycerin. Determine whether this is a physical change or a

chemical change. Explain your answer.
Biology
2 answers:
Oliga [24]3 years ago
8 0

im thinking its a  chemical change cause a new substance is formed


lianna [129]3 years ago
8 0

Explanation:

This is a chemical change because new substances are formed with different properties and identities.

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What is the largest division of geologic time
densk [106]

Answer:

eons

Explanation:

these divisions contain anywhere from millions to billions of years

8 0
3 years ago
Rust results from iron’s reaction to oxygen. An iron nail gains mass when it rusts. How does this reaction support the law of co
Leokris [45]

A

just took the test

5 0
3 years ago
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What sedimentary rock is formed by evaporation of seawater?
tatiyna
C.Halite is the correct answer these are formed by the evaporation of seawater and the salt remaining to help the rock to form.

Hope this helps!
4 0
3 years ago
Which of the following actions would be most likely to increase the protection of ecological systems in national forests?
insens350 [35]

Answer:

The correct answer is - option 3.

Explanation:

The given options are the question are affects the protection of the ecological system in one or another manner but the mandating the rights of government sale of the logging rights in a national forest must be a proper and fair market value.

This will lead to a decrease in the illegal sale of logging sale which results in maintaining the ecological system in the national forest.

Thus, the correct answer is - option 3.

4 0
3 years ago
Which characteristic do all protists have?
myrzilka [38]

Answer: They all survive in any environment.

Explanation: Protists have the ability to survive in any environment, even extreme environment. They can live in the ocean, desert or extremely hot environment, or even a extremely cold environment.

I'll explain why the others aren't correct.

Protists can be both unicellular and multicellular, they're not always unicellular. Kingdom Protista contains all eukaryotics, so they're not always unicelluar.

Protist cannot make or consume food. Animals consume food, and plants make food, not protista. Yes they're many plant-like protists out there, such as algae, they get their food from the sun above. So all protists cannot make or consume food.

Protist does have flagella, but not all protists. Protists that are motile and generate movement have flagella, meaning they move. Not all protist move, like plants can't move. So, not all protists have flagella, meaning they can move.

Let me know if you have any questions.

<em>                                                                                            Sincerely, Lily :)</em>

6 0
3 years ago
Read 2 more answers
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