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NikAS [45]
2 years ago
11

Help please due today

Chemistry
2 answers:
marta [7]2 years ago
4 0
Breaks down large molecules into smaller molecules
Usimov [2.4K]2 years ago
3 0
The one abt respiration the answer is the first one and circulatory system is the last one that says “delivery molecules …”
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What is the mass in g of 7.009 x 10^21 molecules of Pl3?
ycow [4]
I have completed the problem

4 0
3 years ago
Cyclic compound A has molecular formula C5H10 and undergoes monochlorination to yield exactly three different constitutional iso
RideAnS [48]

Answer:

A: 1,2-dimethylcyclopropane

Explanation:

The possible cyclic structure with formula C₅H₁₀ are shown in the image.

A is a cyclic compound. On monochlorination, A yields 3 products.

To have 3 products on monochlorination, there should be three different carbon atoms.

Considering structure 1, all carbons have same nature, thus only one product will be formed and thus not a structure of A.

Considering structure 2, there are two different carbon atoms, thus two different structure are formed and thus not a structure of A.

Considering structures 3 and 4 , there are four different carbon atoms, thus four products will be formed and either of them are not a structure of A.

Considering structure 5, there are three different carbon atoms,  thus three different structure are formed and thus the A is structure 5.

4 0
3 years ago
Which is more stable, half filled or full filled? Why?
lorasvet [3.4K]
<span>subshells have two reasons of stability-
</span><span> 1) half filled and full filled subshells lead to symmetry as symmetry always increases stability in the nature.
</span>2)<span> in half filled and full filled subshells there are maximum no Of exchanges so exchanges  releases energy  so it increase stability.. Exchange of e-s also can b understood as delocalization of e-s which is similar like resonance and resonance always increases stability</span>
5 0
3 years ago
How are Dams good and Bad for the environment?<br><br> Help!!
Talja [164]

Answer:

Dams store water, provide renewable energy and prevent floods. Unfortunately, they also worsen the impact of climate change. They release greenhouse gases, destroy carbon sinks in wetlands and oceans, deprive ecosystems of nutrients, destroy habitats, increase sea levels, waste water and displace poor communities.

Explanation:

7 0
2 years ago
Which of the following statements is true? Fusion breaks apart nuclei; fission puts them together. Fission breaks apart nuclei;
blagie [28]

Answers:

Fission breaks apart nuclei

Fusion puts them together.

======================================================

Explanation:

The term "fission" is related to the term "fissure" which means "a cut or divide", often describing a geologic feature of the earth (eg: a crack in the rock).

Fusion is the idea of putting things together, which is the opposite of fission. The term doesn't have to apply to nuclear fusion. It could be something like the fusing of two ideas to create one new idea.

4 0
3 years ago
Read 2 more answers
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