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ipn [44]
3 years ago
12

The diagram below shows students set-up for the preparation and collection of oxygen gas

Chemistry
1 answer:
dmitriy555 [2]3 years ago
3 0

Answer:

iodine sodium preocide

Explanation:

hang hsudb

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Given the speed of light as 3.0 × 108 m/s, calculate the wavelength of the electromagnetic radiation whose frequency is 7.5 × 10
arlik [135]
Wavelength= velocity/frequency
wavelength= (3.0 x 10^8m/s) / 7.5 x 10^12 Hz)
you can do the math
I am assuming u that 108 is 10^8 and the 1012 is 10^12
3 0
3 years ago
Why do electrons transition between energy levels within the atom, and how do we detect these transitions?
Sedaia [141]

Answer:

See explanation

Explanation:

Electrons transition between energy levels in an atom due to gain or loss of energy. An electron may gain energy and move from its ground state to one of the accessible excited states. The electron quickly returns to ground state, emitting the energy previously absorbed as a photon of light. The wavelength of light emitted is measured using powerful spectrometers.

Atoms can be excited thermally or by irradiation with light of appropriate frequency.

7 0
2 years ago
Which of the following acids is in household vinegar? A nitric acid hydrochloric acid C fluoric acid D acetic acid
Free_Kalibri [48]

Answer: Out of the given options acetic acid is in household vinegar.

Explanation:

Household vinegar is the one that is commonly used in our home while cooking a number of dishes.

The common name of vinegar is acetic acid and its chemical formula is CH_{3}COOH.

For example, vinegar (acetic acid) is used while making noodles.

Thus, we can conclude that out of the given options acetic acid is in household vinegar.

7 0
3 years ago
BRAINLIEST FOR CORRECT ANSWERS PLEASE HELP!
pshichka [43]

Answer:

Mechanical energy is converted to chemical energy during photosynthesis. Oxygen is made from the breakdown of carbon dioxide during photosynthesis

Explanation:

would this work

7 0
3 years ago
Read 2 more answers
Which of the following substances is formed deep under earth
EastWind [94]

Answer:

Oil

Explanation:

everything else is above the earth

6 0
2 years ago
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