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tankabanditka [31]
3 years ago
8

What do you think might be some disadvantages of solar energy?

Chemistry
2 answers:
telo118 [61]3 years ago
8 0

Answer:

Cost

Explanation:

The cost of purchasing a solar system is high so it serves as a great disadvantage.

ivolga24 [154]3 years ago
3 0

Answer:

  • Expensive - Initial purchasing cost is fairly high
  • Uses a lot of space - More electricity requires more solar panels
  • Can be inefficient - Doesn't work at night and not as well when it is cloudy

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How does the DNA of a daughter cell compare to the DNA of the parent cell in asexual reproduction?
Rufina [12.5K]

Answer:

The Answer is  B

Explanation:

I hope this helps ;)

4 0
2 years ago
4Al(s) + 30₂(g) → 2Al2O3 (s)
Margaret [11]
1) 1 molecules
2) 2 oxygen atoms
3)2 moles of Al2O3 are formed
4)4:3
6 0
2 years ago
What things typically are counted in multiples or fractions of moles
ololo11 [35]

Answer:

Individually well, defined identical chemically units such as molecules, ions, atoms, or electrons

Explanation:

The mole is used as the unit of measurement for substance such as molecules, ions, atoms, or electrons. One mole of a substance is equivalent to 6.02×10²³ particles of the substance. The number, 6.02 × 10²³ is known as Avogadro's number.

The particles quantified as moles are individually well, defined identical chemically units such that the mole can be used to describe a part of a substance or the whole substance consisting of several moles of the substance combined.

7 0
3 years ago
What is in a microscope the enlarges things so our eye can see them?
Fittoniya [83]

Answer:lenses

Explanation:

5 0
2 years ago
In a certain electrolysis experiment, 1.24 g of Ag were deposited in one cell (containing an aqueous AgNO3 solution), while 0.65
eduard

Answer:

The correct answer is 169.56 g/mol.

Explanation:

Based on the given information, the mass of Ag deposited is 1.24 g, and the mass of unknown metal X deposited in another cell is 0.650 g. The number of moles of electrons can be determined as,

= 1.24 g Ag * 1mol Ag/107.87 g/mol Ag * 1 mol electron/1 mol Ag ( the molecular mass of Ag is 107.87 g/mol)

= 0.0115 mole of electron

The half cell reaction for the metal X is,  

X^3+ (aq) + 3e- = X (s)

From the reaction, it came out that 3 faraday will reduce one mole of X^3+.  

The molar mass of X will be,  

= 0.650 g/0.0115 *3 mol electron/1 mol

= 56.52 * 3

= 169.56 g/mol

7 0
3 years ago
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