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professor190 [17]
3 years ago
7

What are some questions about weather

Chemistry
2 answers:
IceJOKER [234]3 years ago
8 0

Answer: what about it makes the weather change.

why are seasons significant?

Explanation:

iVinArrow [24]3 years ago
4 0

why does it occur? how does it affect the environment?

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A chemist has synthesized two new dyes based on the molecular structure of plant-based dyes. The lowest energy absorption line f
baherus [9]

Answer:

1. The dye that absorbs at 530 nm

Explanation:

With a larger HOMO-LUMO gap, there's also a higher absorption energy, so this means that the dye with the higher absortion energy has the larger HOMO-LUMO gap.

The relationship between energy and wavelenght can be expressed by the formula E = hc/λ, this means that the <em>lower</em> the wavelenght, the <em>higher</em> the energy is. So the dye that absorbs at a lower wavelenght has a larger HOMO-LUMO gap.

7 0
3 years ago
Find the number of grams in 16.95 mol hydrogen peroxide (H2O2). Round your
Feliz [49]

Answer: There are 576.46 number of grams present in 16.95 mol hydrogen peroxide (H_{2}O_{2}).

Explanation:

Number of moles is defined as the mass of substance divided by its molar mass.

The molar mass of H_{2}O_{2} is 34.01 g/mol. Hence, mass of hydrogen peroxide present in 16.95 moles is calculated as follows.

Moles = \frac{mass}{molarmass}\\16.95 mol = \frac{mass}{34.01 g/mol}\\mass = 576.46 g

Thus, we can conclude that there are 576.46 number of grams present in 16.95 mol hydrogen peroxide (H_{2}O_{2}).

3 0
3 years ago
A radioactive nuclide that is used to label blood platelets has 49 protons and 62 neutrons. Which is the symbol of this nuclide?
Drupady [299]
From among the subatomic particles available, we determine which element is presented by using the number of protons. The 49th element in the periodic table is Indium (In). The chemical symbol is In-62. 62 is the number representing the number of neutrons .

Answer: In-62
6 0
3 years ago
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A diamond’s density is 3.2 g/cm3. <br> Determine the volume of a diamond that has a mass of 1 g.
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How should the magnetic field lines be drawn for the magnets shown below?
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Magnetic field lines can be drawn by moving a small compass from point to point around a magnet. At each point, draw a short line in the direction of the compass needle. ... This is shown in Figure 20.11, which shows the magnetic field lines created by the two closely separated north poles of a bar magnet.

6 0
3 years ago
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