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Vlad1618 [11]
4 years ago
11

The emission spectrum of hydrogen consists of several lines. Which line has the highest frequency?

Chemistry
1 answer:
solong [7]4 years ago
8 0

Answer:

  410 nm

Explanation:

The highest frequency is associated with the shortest wavelength. Of those listed, 410 nm is the shortest.

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The ___ vapor pressure at high altitudes causes a liquid to boil at a ____ temperature.
Nastasia [14]

The _HIGHER__ vapor pressure at high altitudes causes a liquid to boil at a _LOWER___ temperature.

Explanation:

Vapor pressure is the pressure applied by the molecule of a liquid at the surface of the liquid as it transitions into a gaseous phase. When the vapor pressure exceeds the atmospheric pressure, this is when the liquid begins to boil. Therefore when the atmospheric pressure is low, then the liquid will boil at lower temperatures, because the vapor pressure of the liquid will overcome the atmospheric pressure at lower temperatures.

3 0
3 years ago
Read 2 more answers
The pressure exerted on 240. Ml sample of hydrogen at constant temperature is increased from .428 ATM to .724 ATM what will the
Flauer [41]
P1v1=p2v2
v2=p1v1/p2
v2=428x240/724
v2=141.87

4 0
4 years ago
A student measures the mass of an 8 cm block of brown sugar to be 12.9 g. What is the density of
horrorfan [7]

Answer:

0.0025g/cm³

Explanation:

Given parameters:

Mass of the brown sugar = 12.9g

dimension of the sugar = 8cm

unknown:

density of the sugar = ?

Solution

Density is defined as the mass per unit volume of a substance. The expression is given below:

      Density = \frac{mass}{volume}

We know the mass of the substance but the volume is unknown:

Volume of the brown sugar = l x bx h = 8x8x8 = 512cm³

Density of the brown sugar = \frac{12.9}{512} = 0.0025g/cm³

8 0
3 years ago
What is the mass of snow (in tons) on a 150.0ft by 45.0 ft flat roof after a 6.0 inch snowfall? Assume that 11 inches of snow is
Aneli [31]
6 inches of snowfall would be equivalent to 6/11 inches of water or 6/132 feet. So the volume of the equivalent amount of water on the roof is 150 ft. x 45 ft. x 6/132ft. = 306.8 cubic feet.   
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Multiplying the two results gives 9.58 tons of snow.
5 0
3 years ago
Are eye drops a base or acid???
gregori [183]

base

bye hope you have a good day

3 0
4 years ago
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