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jenyasd209 [6]
4 years ago
5

BRAINLIESTTT ASAP!! PLEASE HELP ME :))

Chemistry
2 answers:
goldenfox [79]4 years ago
5 0

Answer:

Solar panels and solar cells.

Explanation:

The word "solar" means "relating to or denoting energy derived from the sun's rays".

Hope this helps! :)

Sonja [21]4 years ago
3 0

Answer: Solar panels and solar cells

Explanation:

Solar panels and solar cells are the equipment that converts the light energy into electrical energy.

These instrument absorb the light energy and converts it into electrical energy which can be used to run electrical appliances.

Example: The solar panels can be use to cook food in cooker, it can be used to glow bulb, it can be use to heat water.

hence, the correct answer is option D, solar cells and solar panels.

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What is Science?
DENIUS [597]

Answer:

jesus

Explanation:

Jesus is always the answer LOL

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2 years ago
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If a hydrogen atom and a helium atom have the same kinetic energy:________
Nuetrik [128]

Answer: If a hydrogen atom and a helium atom have the same kinetic energy then the wavelength of the hydrogen atom will be roughly equal to the wavelength of the helium atom.

Explanation:

The relation between energy and wavelength is as follows.

E = \frac{hc}{\lambda}\\

This means that energy is inversely proportional to wavelength.

As it is given that energy of a hydrogen atom and a helium atom is same.

Let us assume that E_{hydrogen} = E_{helium} = E'. Hence, relation between their wavelengths will be calculated as follows.

E_{hydrogen} = \frac{hc}{\lambda_{hydrogen}}    ... (1)

E_{helium} = \frac{hc}{\lambda_{helium}}         ... (2)

Equating the equations (1) and (2) as follows.

E_{hydrogen} = E_{helium} = E'\\\frac{hc}{\lambda_{hydrogen}} = \frac{hc}{\lambda_{helium}} = E'\\\lambda_{helium} = \lambda_{hydrogen} = E'

Thus, we can conclude that if a hydrogen atom and a helium atom have the same kinetic energy then the wavelength of the hydrogen atom will be roughly equal to the wavelength of the helium atom.

7 0
3 years ago
What happens when hydrogen gas is passed over hot ferric oxide​
Roman55 [17]

Answer:

When hydrogen is passed over hot ferric oxide (FeO) hydrogen reacts with oxygen present in the compound and forms water (H2O) and pure Iron

Explanation:

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3 years ago
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Determine if these molecules and ion are polar.
Colt1911 [192]

Answer:

a. Polar

b. Polar

c. Non-polar

d. Non-polar

Explanation:

a. H_3O^+, hydronium cation contains a positive charge. Just as any other ion, it is polar, as it has a net charge.

b. H_2S has the same shape as water. There are two lone pairs on sulfur atom which produce an overall dipole moment in this molecule, the bent structure is polar.

c. PCl_5 is non-polar, as the central atom, phosphorus, doesn't contain any lone pairs, all the dipole moments cancel out: two dipole moments in the vertical plane, P-Cl, and three P-Cl dipoles in the horizontal plane within a trigonal bipyramidal shape.

d. CF_4 is non-polar, since it's a tetrahedral molecule with no lone pairs on carbon atom, all four C-F dipole moments cancel out to yield a net 0 dipole moment.

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3 years ago
All atoms of a given element are identical was proven wrong because of the existence or
vagabundo [1.1K]

Answer:

they are all similar

Explanation:

6 0
3 years ago
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