An electromagnetic wave that has a higher frequency than ultraviolet light will have ____ than the ultraviolet light.

1 answer:

5 0

C)shorter wavelength and higher energy
frequency is inversely proportional to wavelength
frequency is directly proportional to Energy

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which industrial city would have fewer air pollution incidents related to temperature inversions one on the great plains or one

egoroff_w [7]

I'm not positive, but I believe it would be one near the Rocky Mountains.

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3 years ago

Liquid nitrogen has a density of 0.807 g/ml at –195.8 °c. if 1.00 l of n2(l) is allowed to warm to 25°c at a pressure of 1.00 at

Flauer [41]

Step 1: Change density from g/mL to g/L;

0.807 g/mL = 807 g/L

Step 2: Find Moles of N₂;
As,
Density = Mass / Volume
Or,
Mass = Density × Volume

Putting Values,

Mass = 807 g/L × 1 L

Mass = 807 g
Also,
Moles = Mass / M.mass

Putting values,

Moles = 807 g / 28 g.mol⁻¹

Moles = 28.82 moles

Step 3: Apply Ideal Gas Equation to Find Volume of gas occupied,

As,
P V = n R T

V = n R T / P
Putting Values, remember! don't forget to change temperatue into Kelvin (25 °C + 273 = 298 K)

V = (28.82 mol × 0.08206 atm.L.mol⁻¹.K⁻¹ × 298 K) ÷ 1 atm

V = 704.76 L

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3 years ago

Why is graphite used instead of gold or copper wires to conduct electricity in very hot situations such as an industrial kiln?

Molodets [167]

It wont melt like gold and copper would at that temperature

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3 years ago

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The competition between the U.S. and the Soviet Union to get satellites and humans into space was known as the:

Alex787 [66]

Answer: It was known as the SPACE RACE.

Explanation: The space race was a cold war between the Soviet Union (USSR) and the United States (US), to get satellites and humans into space. The competition began in earnest on August 2, 1955, when the Soviet Union responded to the US announcement. On April 12, 1961, the USSR surprised the world again by launching Yuri Gagarin into a single orbit around the Earth in a craft they called Vostok 1.

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Determine which of the following pairs of reactants will result in a spontaneous reaction at 25°C. None of the above pairs will

Alla [95]

Answer:

Only $Fe^{3+}+Mg$ gives spontaneous reaction.

Explanation:

A redox reaction will be spontaneous if standard reduction potential ( $E^{0}$ ) of the reaction is positive. Because it leads to negative standard gibbs free energy change ( $\Delta G^{0}$ ), which is a thermodynamic condition for spontaneity of a reaction.

$E^{0}=E^{0}(reduction)-E^{0}(oxidation)$

Where $E^{0}(reduction)$ and $E^{0}(oxidation)$ represents standard reduction potential of reduction half cell and standard reduction potential of oxidation half cell.