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IceJOKER [234]
3 years ago
8

Conservation of resources includes the following actions EXCEPT

Chemistry
1 answer:
alexdok [17]3 years ago
3 0

Answer:

C : runoff

Explanation:

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Which group of elements has the most similar chemical properties? (1 point)
enot [183]

Answer:

carbon nitrogen and oxygen

6 0
3 years ago
What is 198g=____kg please help me
Marat540 [252]

Answer:

0.198kg

Explanation:

because,

1kg = 1000g

so

198g = 0.198g

divide it by 1000 to get kg

5 0
3 years ago
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2. Why is the flow rate of water out of a tap quite different from the flow rate of honey.
Olin [163]
The flow rate of water differs from honey due to the texture and thickness of the product. Honey’s thickness doesn’t allow it to move as quickly as the water, therefore affecting the flow rate.
7 0
3 years ago
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A stock solution of HNO3 is prepared and found to contain 13.1 M of HNO3. If 25.0 mL of the stock solution is diluted to a final
musickatia [10]

Answer:

The diluted solution is 0.65 M

Explanation:

Dilution formula to solve the problem is:

M concentrated . V concentrated = M Diluted . V diluted

We can also make a rule of three though.

In 1000 mL of concentrated solution, we have 13.1 moles of  HNO₃

So in 25 mL we have (25 . 13.1 ) / 1000 = 0.327 moles of HNO₃

This moles are also in 0.500 L of diluted solution, the new molarity will be:

0.327 mol / 0.5L = 0.65 M

Molarity of diluted solution must be always lower than concentrated solution, otherwise the excersise is wrong.

If we replace in the formula

13.1 M . 25 mL = 500 mL . M diluted

M diluted = 13.1 m . 25 mL / 500 mL = 0.65 M

6 0
3 years ago
Complete this equation for the dissociation of na2co3(aq). omit water from the equation because it is understood to be present.
Savatey [412]
Net overall dissociation:
Na2CO3 ---> 2Na(-) + CO3(2-)

*The ion charge is in parenthesis
6 0
3 years ago
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