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Trava [24]
3 years ago
9

I really need helpppppp

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

Answer:

Electron

Explanation:

photoshop1234 [79]3 years ago
5 0

Answer:

electron

Explanation:

its negative

its on the outer shell

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Which taxonomic group is a group of similar families?
adell [148]

Answer:

From smallest to largest, the levels are species, genus, family, order, class, phylum, and kingdom. Each of the ranking levels is called a taxon. Just as a genus is a group of similar species, a family is a group of similar genera. An order is a group of similar families.

4 0
3 years ago
____________<br> Why do animals defend their territories?
tatyana61 [14]
Animals defend their territories because it’s kinda a instinct and they want to be in charge
6 0
3 years ago
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What percent of iodine has decayed if 5 half lives have passed?
goldfiish [28.3K]

Hello!

A half-life is the amount of time it takes half of an element to decay. For example, after one of carbon's half-life, half of carbon would've decayed.

Now, we can calculate how much has decayed if 5 half lives have passed.

1 -> 50% (1) -> 25% (2) -> 12.5% (3) -> 6.25% (4) -> 3.125% (5)

Therefore, there would be 3.125% left of iodine. However, your question is asking what percent has decayed. Therefore, subtract 3.125 from 100% to get your final answer.

100 - 3.125 = 96.875

Therefore, your final answer is 96.875% of iodine has decayed if 5 half lives have passed.

Hope this helps!

3 0
3 years ago
Compounds that contain both carbon and hydrogen atoms
Fiesta28 [93]

Answer:

CH4

Explanation:

Combining hydrogen and carbon produces a group of organic compounds called hydrocarbons. Depending on the specific molecular formula, there can be many different types of hydrocarbons, such as the fuels propane and octane. The simplest hydrocarbon is methane, which has the chemical formula CH4.

4 0
3 years ago
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Why does liquid water have such a high heat capacity?
Tamiku [17]

Answer:

Choice D

Explanation:

Water molecules exhibit hydrogen bonded to oxygen, which is considered a hydrogen bond. This is the strongest type of bond and is not easily broken. Once formed, a large amount of heat is needed to disrupt the bond energy and break apart the molecule. Therefore, water has a high heat capacity and can withstand higher temperatures than that of some other liquids.

3 0
3 years ago
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