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joja [24]
3 years ago
12

Which of the following statements about the density of the blue object is true?

Chemistry
1 answer:
beks73 [17]3 years ago
3 0

Answer:

the answer is A it just told me

Explanation:

the quiz told me the correct answer  

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Two sealed flasks each have a volume of 2.0 liters. Flask A contains N, O gas and Flask B contains H, gas both at 1
barxatty [35]

Answer:

Each gas have same number of molecules.

Explanation:

According to Avogadro law,

Equal volume of all the gases at same temperature and pressure have equal number of molecules.

Mathematical expression:

V ∝ n

V = Kn

V/n = K

k = constant

V = volume of gas

n = number of moles of gas

when volume change is changed from v1 to v2 and number of moles from n1 to n2 this law can be written as,

V1 / n1 = V2 /n2

This state that by increasing the number of moles of gas volume also goes to increase.

4 0
3 years ago
What is the temperature of a water body containing a 90% saturation and 11.5 ppm of dissolved oxygen?
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Using the chart that has been provided, we may determine water temperature. We do this by drawing a straight line form the bottom scale which has the ppm of oxygen dissolved to the middle scale which has the percentage saturation.

The line starts from 11.5 ppm on the bottom scale and goes to 90% on the middle scale. Next, we continue this line, without changing its slope, to the third scale showing temperature. We see that it crosses the temperature scale at 4°C.

The temperature of the water is 4 °C.
6 0
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Which isotope is used to treat cancer?<br> (1) C-14 (3) Co-60<br> (2) U-238 (4) Pb-206
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3 years ago
How many mold are in 4.25x10^-2 atoms of lead
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I’m sorry I have no clue
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Can sound pass through space?
Tresset [83]

Answer:

no it can not

Explanation:

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