A disadvantage of solar energy is the need for?

Answers

Answer 1

Answer: A disadvantage of solar energy is that solar power cannot be created during the night since the sun doesn't shine 24 hours. Also, the production of energy is decreased during cloudy days. Solar energy uses the light from the sun to create energy.

Answer 2

Answer:

a supplemental heating unit for cloudy days, winters, and nighttimes

Related Questions

A bottle of rubbing alcohol contains both 2-propanol and water. These liquids can be separated by the process of distillation because the2-propanol and water(1) have combined chemically and retain their different boiling points(2) have combined chemically and have the same boiling point(3) have combined physically and retain their different boiling points(4) have combined physically and have the same boiling point
What is a compound in chemistry
Which is a redox reaction?A) 2KBr + F2 ---> 2KF + Br2 B) 2HCL + Mg(OH)2 --> 2HOH + MgCl2 C) 2NaCl + H2SO4 --> Na2SO4 + 2HCl D) Ca(OH)2 + Pb(NO3)2 --> Ca(NO3)2 + Pb(OH)2 I know the answer is A, but confused as to why that is. Can someone explain this for me? Thanks.
A 700.0 mL gas sample at STP is compressed to a volume of 200.0 mL, and the temperature is increased to 30.0 degrees Celsius. What is the new pressure of gas at kPa?
Which of the following likely formed Mars' moons?

In plants, movement of CO2 and O2 happens through:

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Stomata
Stomata are the pores present on the leaves of the plant

Balance this chemical equation: ___ N2 (g) __O2 (g) → ___ H2O ___ NO3 (aq)

Answers

Answer:

To balance the chemical equation, I'll assume the reaction is carried out under standard conditions. Here's the balanced equation:

2 N2 (g) + 5 O2 (g) → 4 H2O (l) + 4 NO3- (aq)

Explanation:

To balance the number of nitrogen (N) atoms, we need 2 nitrogen molecules (N2) on the left side. This gives us a total of 4 nitrogen atoms on the left side.

To balance the number of oxygen (O) atoms, we need 5 oxygen molecules (O2) on the left side. This gives us a total of 10 oxygen atoms on the left side.

On the right side, we need 4 water molecules (H2O) to balance the hydrogen (H) atoms. This gives us a total of 8 hydrogen atoms on the right side.

Finally, to balance the oxygen (O) atoms on the right side, we need 4 nitrate ions (NO3-) since each nitrate ion contains one nitrogen and three oxygen atoms. This gives us a total of 12 oxygen atoms on the right side.

Now the equation is balanced with 4 nitrogen atoms, 10 oxygen atoms, 8 hydrogen atoms, and 4 nitrate ions on both sides.

Density is a measure of an object's _____ per unit _____.

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Density is a measure of an object's mass per unit volume.

I hope you have a wonderful day! :D

Density is a mesjre of an objects mass per u it volume

The radius of an atom of gold (Au) is about 1.35 Å.How many gold atoms would have to be lined up to span 9.5 mm ?

Answers

Answer : The number of gold atoms will be, $3.52* 10^7$

Explanation :

First we have to determine the diameter of an atom of gold.

$Diameter=2* Radius$

Given :

Radius of an atom of gold = $1.35\AA$

$Diameter=2* 1.35\AA=2.7\AA$

Conversion used : $(1\AA=10^(-7)mm)$

$Diameter=2.7\AA=2.7* 10^(-7)mm$

Now we have to calculate the number of gold atoms.

$\text{Number of gold atoms}=\frac{\text{Span length}}{\text{Diameter of an atom of gold}}$

$\text{Number of gold atoms}=(9.5mm)/(2.7* 10^(-7)mm)=3.52* 10^7$

Therefore, the number of gold atoms will be $3.52* 10^7$

Two radius of an atom is equal to the diameter. Adding up all the diameter of the atoms, it should be equal to 9.5 mm. Therefore, we simply convert the units to the same units then divide 1.35 A to 9.5 mm. We calculate as follows:

no. of atoms = 0.0095 m / 1.35x10^-9 m = 7037037 atoms

Hope this answers the question. Have a nice day.

Corrosion is what type of chemical change? a. oxidation
b. phase change
c. physical change
d. combustive reaction

Answers

(A)Oxidation is your answer..........

Two liquids that are soluble in each other are said to be____

Answers

I believe oil is soluble

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