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Kobotan [32]
3 years ago
5

SOMEONE PLEASE HELP ME WITH THIS

Chemistry
2 answers:
MaRussiya [10]3 years ago
5 0
Aa, bring the right a down and the lower á across.
n200080 [17]3 years ago
5 0

Answer:

Its the third one (aa)

Explanation:

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Please help me<br><br><br> Thank you
Andreas93 [3]

Answer:

C

Explanation:

If you think about it treated sewage would have a certain place that it is put therefore C is the answer

5 0
3 years ago
How many atoms of nitrogen are present in 2.49 moles of nitrogen trifluoride ? atoms of nitrogen?
stepladder [879]
<span>Nitrogen trifluoride - NF3.
1 mol NF3 contains 1 mol atoms of Nitrogen
2.49 mol NF3 contains 2.49 mol atoms of Nitrogen

1 mol   ----  6.02 *10²³ atoms
2.49 mol ----- 2.49*6.02*10²³ = 15.0*10²³ atoms of N</span>
6 0
3 years ago
The consentration of a solution can be changed by _____ solute
Ghella [55]
The concentration of a solution can be changed by adding solute. More solute=more concentrated
4 0
3 years ago
In clinical applications, the unit ppm (parts per million) is used to express very small concentrations of solute, where 1 ppm i
il63 [147K]

Answer:

a. 0.191 ppm b. 4.962 ppm c. 0.0385 ppm

Explanation:

a. 17 g of calcium = 0.017 mg. 89 mL = 0.089 L.

So our concentration = 0.017 mg/0.089 L = 0.191 mg/L = 0.191 ppm

b. 0.65 mg of caffeine in 131 mL = 0.131 L.

So our concentration = 0.65 mg/0.131 L = 4.962 mg/L = 4.962 ppm

c. 0.35 mg of trace particle in 91 dL = 9.1 L.

So our concentration = 0.35 mg/9.1 L = 0.0385 mg/L = 0.0385 ppm

5 0
3 years ago
Which currents are deflected by the eastern coastline of the continents?
kotegsom [21]

Answer:

The correct answer is option B, that is, western boundary currents.

Explanation:

The Western boundary currents get deflected by the eastern coastline of the continents. The western boundary currents refer to the deep, warm, narrow, and fast flowing currents, which produce on the west end of the ocean basins because of the western intensification. They conduct warm water from the tropics poleward. Some of the examples of western boundary currents are the Agulhas current, Gulf Stream, and the Kuroshio.

6 0
3 years ago
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