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kykrilka [37]
3 years ago
13

Which is an example of a scientist using a physical model to describe a river?

Chemistry
2 answers:
MrRissso [65]3 years ago
5 0

A-The scientist builds a model of the river using plastic and a hose.

Explanation:

(Apex)

nata0808 [166]3 years ago
4 0

Answer:

answer is point no B is the correct answer

Explanation:

B

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Ksivusya [100]

Answer:

3.3765 Mol O2

Explanation:

There is no work for this problem

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A solution
Gelneren [198K]
A solution <span>has a uniform composition and is only able to be separated by chemical means.</span>
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Which will most likely result if the levels of dissolved oxygen decrease in a body of water?
Lerok [7]

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B) Native fish species will begin to decrease in population size.

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Read 2 more answers
Given the balanced equation:
Aliun [14]

Answer:

0.4

Explanation:

Given data:

Number of moles of SrCl₂ consumed = ?

Mass of ZnCl₂ produced = 54 g

Solution:

Chemical equation:

ZnSO₄ + SrCl₂    →    SrSO₄ +  ZnCl₂

Number of moles of ZnCl₂:

Number of moles = mass/ molar mass

Number of moles = 54 g/136.3 g/mol

Number of moles = 0.4 mol

Now we will compare the moles of  ZnCl₂ with SrCl₂  from balance chemical equation.

                          ZnCl₂              :             SrCl₂

                              1                  :                1

                           0.4                 :              0.4

Thus when 54 g of  ZnCl₂ produced 0.4 moles of SrCl₂ react.

6 0
3 years ago
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