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love history [14]
2 years ago
8

I need yall help with this one and i can make yall brilientist if u get it right plus yall get 50 points

Chemistry
2 answers:
mixas84 [53]2 years ago
6 0

Answer:

D

Explanation:

amid [387]2 years ago
4 0

Answer:

C. and B. im pretty sure hope it helps

Explanation:

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3 years ago
Calculate the frequency of light having a wavelength of 425nm. remember that 1nm=1×10−9m
Gnom [1K]

The frequency of light having a wavelength of 425nm will be 70588 × 10^{14} Hz.

The count of times an event takes place per unit of time is known as its frequency. The word frequency would be most frequently used to describe waves in physics including chemistry, including light, sound, including radio waves. The frequency refers to the number of times during one second that a point on a wave crosses a fixed reference point.

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places  in the consecutive cycles.

Given data:

wavelength = 425nm = 425 * 10^{-9} m

Frequency can be calculated by using the formula;

Frequency =  speed of light / wavelength

Frequency = 3 × 10^{8} m/s / 425 × 10^{-9} m = 7,0588 × 10^{14} Hz.

Therefore, the frequency of light having a wavelength of 425nm will be 70588 × 10^{14} Hz.

To know more about  frequency

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2 years ago
How much energy is required to raise 10 grams of water by 10 degrees Celsius? (in Joules)
Georgia [21]

Answer:

420j

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Why is the net charge of a neutral atom zero?
nikitadnepr [17]

Answer:

Explanation:

The positive (protons) and negative (electrons) charges balance each other in a neutral atom, which has a net zero charge. Because protons and neutrons each have a mass of 1, the mass of an atom is equal to the number of protons and neutrons of that atom.

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