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Lera25 [3.4K]
3 years ago
11

Which do all cells need in order to function?

Chemistry
1 answer:
vazorg [7]3 years ago
8 0
Oxygen, should be correct
sometimes we use and need mandatory
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The amount of water vapor in a given volume of air is ______________ .The amount of water vapor in the air at any one time depen
Eduardwww [97]

Answer:

The amount of water vapor in a given volume of air is humidity.The amount of water vapor in the air at any one time depends on temperature . Warmer air holds more water than cooler air. Clouds form when humidity is low and thetemperature is high . Relative humidity is defined as the amount of water vapor in the air divided by the amount that would have to be present in the same air to form a cloud or condense on a surface. Dew is related to the humidity of the previous day. The air temperature at which water vapor in the air condenses onto cool surfaces is the dew point.

Explanation:

8 0
2 years ago
How much energy in kJ is associated with a radio wave of wavelength 1.2 X 10^2 m?
eduard
It's very simple.

Energy = \frac{hc}{\lambda}

where, h= Planck's constant = 6.6 x 10^{-34} m^2 kg/s

c= speed of light = 3 x 10^{8} m/s
\lambda = wavelength


So, energy = \frac{6.6 \times 10^{-34} \times 3 \times 10^{8}}{120}

= 1.65 x 10^{-27} J
=1.65 x 10^{-30} KJ

6 0
3 years ago
What is the enthalpy in KJ of reaction for the initial combustion if the delta H for vaporization is 75.75 KJ and the net delta
Gnesinka [82]

Answer:

-775.75

Explanation:

4 0
2 years ago
Give the symbol of the ion that contains 34 protons and 36 electrons
MariettaO [177]
Se2- has 34 protons and 36 electrons so it gets a 2- charge.
5 0
2 years ago
A battery has chemical energy, which can be used to generate thermal and radiant energy in a lightbulb. Which best explains what
WARRIOR [948]

Answer is: The total energy in the system remains the same as the decrease in chemical energy equals the increase in thermal and radiant energy.

The law of conservation of energy states that the total energy of an isolated system remains constant; energy can neither be created nor destroyed; it can only be transformed or transferred from one form (in this example chemical energy) to another (in this example thermal and radiant energy).

Radiant energy or light is the only kind of energy we can see with our eyes. Light have different wavelenght and different color.

Chemical energy - this type of energy is often found in things like batteries or food.

7 0
3 years ago
Read 2 more answers
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