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Nikolay [14]
3 years ago
5

What do leaves produce

Chemistry
2 answers:
murzikaleks [220]3 years ago
7 0
Plants Produce Oxygen and we produce carbon dioxide to give the plants therefore they give oxygen back
larisa86 [58]3 years ago
6 0

They produce air/oxygen.

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Which of there is an indication that a chemical reaction has occurred?
Komok [63]
Answer is (b) , because a chemical change happened
6 0
3 years ago
Mercury’s atomic emission spectrum is shown below. Estimate the wavelength of the orange line. What is its frequency? What is th
lions [1.4K]

The wavelength of the orange line is 610 nm, the frequency of this emission is 4.92 x 10¹⁴ Hz and the energy of the emitted photon corresponding to this <em>orange line</em> is 3.26 x 10⁻¹⁹ J.

<em>"Your question is not complete, it seems to be missing the diagram of the emission spectrum"</em>

the diagram of the emission spectrum has been added.

<em>From the given</em><em> chart;</em>

The wavelength of the atomic emission corresponding to the orange line is 610 nm = 610 x 10⁻⁹ m

The frequency of this emission is calculated as follows;

c = fλ

where;

  • <em>c is the speed of light = 3 x 10⁸ m/s</em>
  • <em>f is the frequency of the wave</em>
  • <em>λ is the wavelength</em>

f = \frac{c}{\lambda } \\\\f = \frac{3\times 10^8}{610 \times 10^{-9}} \\\\f = 4.92 \times 10^{14} \ Hz

The energy of the emitted photon corresponding to the orange line is calculated as follows;

E = hf

where;

  • <em>h is Planck's constant = 6.626 x 10⁻³⁴ Js</em>

<em />

E = (6.626 x 10⁻³⁴) x (4.92 x 10¹⁴)

E = 3.26 x 10⁻¹⁹ J.

Thus, the wavelength of the orange line is 610 nm, the frequency of this emission is 4.92 x 10¹⁴ Hz and the energy of the emitted photon corresponding to this <em>orange line</em> is 3.26 x 10⁻¹⁹ J.

Learn more here:brainly.com/question/15962928

6 0
2 years ago
(c) Polar solutes were separated by hydrophilic interaction chromatography (HILIC) with a strongly polar bonded phase. How would
Lelu [443]

Answer:

(c) The retention time would be higher (d) The retention time would be lower.

Explanation:

For the polar solutes which were separated using the hydrophilic interaction chromatography (HILIC) with a strongly polar bonded phase, the retention time would be higher if eluent were changed from 80 vol% to 90 vol% acetonitrile in water.

However, for the polar solutes which were separated using the normal-phase chromatography on bare silica with methyl t=butyl ether and 2-propanol solvent, the retention time would be lower if the eluent were changed from 40 vol% to 60 vol% 2-propanol.

5 0
3 years ago
1. What way do Convergent plates move?
amid [387]

Answer:

Convergent plates move towards each other.

Explanation:

7 0
3 years ago
Using your knowledge of Greek and Latin roots and affixes, what does "synchronize" mean?
Ksenya-84 [330]

Answer:

"Synchronize" means to place together in terms of time and manner.

Explanation:

  • In the word 'synchronize' the prefix added is 'syn'.
  • The prefix 'syn' has been derived from the Greek language.
  • The prefixes 'syn' and 'sym' are equivalent in terms of their meanings.
  • The meaning of the prefix is to put 'together'.
  • The words formed by adding the prefix es 'syn' and 'sym' highlights the meaning of togetherness of the specific things.
  • Here, the word 'synchronize' means to put together in terms of time and manner.
6 0
3 years ago
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