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meriva
3 years ago
8

Help ASAP PLEASE !!!!!!

Chemistry
1 answer:
expeople1 [14]3 years ago
4 0
The answer would be B.  Increased fertility downstream. Hope this helps. It's been a while since iv'e done the test, but I think this is the correct answer.

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Describes how Anders Celsius devised the temperature scale that bears his name
shusha [124]
He used a tube of mercury and marked the height of the mercury when placed in an ice bath as 0 degrees celsius, when he placed the tube in a boiling, he marked the height of mercury and called that 100 degrees celsius, he marked it linearly between 0-100 degrees celsius
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3 years ago
How many atoms of potassium and how
Varvara68 [4.7K]
KOH? 6.022 x 10^23 atoms of potassium(K) are in one mole of KOH
8 0
3 years ago
Which of the following is an example of commensalism?
Juliette [100K]

Commensalism is the relation ship between two species where one of the species is being benefited while the other is not benefited and not even harmed.

It is a type of symbiosis

the correct answer is

A) Birds feed off the insects that are stirred up from the grasses as cattle move through.


8 0
3 years ago
Help me please someone help me I’ve been here for hours
mash [69]

Answer:

Eukarya- Multicellar and unicellar

Explanation:

Fugi- Multicellar

Protista- unicellar

eubacteria- unicellar and have no nucleus

Eukarya is the only option, and that is because Eukarya is both! It contains a nucleus, and a membrane making it the only one that fits into the incomplete graphic! Hope this helps! (I noticed you were waiting for a while so I came to help! <3)

7 0
3 years ago
Nuclear decay<br>27Al + He 》 39P<br>​
dybincka [34]

Answer:

_{13}^{27}\text{Al} + \rm _{2}^{4}\text{He} \longrightarrow \, _{15}^{31}\text{P}

Explanation:

The unbalanced nuclear equation is

^{27}\text{Al} + \rm \text{He} \longrightarrow \, ^{31}\text{P}

We can insert the subscripts, because these are the atomic numbers of the elements

_{13}^{27}\text{Al} + \, \rm _{2}\text{He} \longrightarrow \, _{15}^{31}\text{P}

That leaves only the superscript of He to be determined,

The main point to remember in balancing nuclear equations is that the sums of the superscripts must be the same on each side of the equation.  

Then

27 + x = 31, so x = 31 - 27 = 4

Then, your nuclear equation becomes

_{13}^{27}\text{Al} + \, \rm _{2}^{4}\text{He} \longrightarrow \, _{15}^{31}\text{P}

6 0
3 years ago
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