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3 years ago

What is an energy human eyes can detect?

Chemistry

2 answers:

dlinn [17]3 years ago

5 0

Answer:

A. light

Explanation:

I know because with longer wavelengths than visible light, has been "invisible" to the human eye.

Andrej [43]3 years ago

4 0

I think light but I could be wrong

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Hen the external pressure is 404 kPa, what is the vapor pressure of water at its boiling point?

NikAS [45]

At the boiling point, external pressure is equal to the vapor pressure of water. Therefore, the vapor pressure of water at an ecternal pressure of 404 kPa is equal to 404 kPa as well. Hope this answers the question. Have a nice day. Feel free to ask more questions.

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3 years ago

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Balance the following reaction. P4 + 3 O2 → 2P2O5

agasfer [191]

Answer:

P₄ + 5O₂ → 2P₂O₅

Explanation:

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3 years ago

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How do chemists identify elements & compounds?

padilas [110]

Chemsits identify elements and compounds by using the Periodic Table. All elements have Atomic Numbers, Chemical Names, Atomic Mass, Period, and are usually colored and put into their group.

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3 years ago

What is the volume of 5.00 moles of gas at STP

Solnce55 [7]

Answer:

the volume of 5.0 g CO2 is 2.6L

CO2 at tsp

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2 years ago

Students in physics class are asked to find the relationship between the length of a pendulum (string with a weight at the botto

Goshia [24]

Answer:

1) $Time \ for \ pendulum \ swing \ left \ and \ right = 2 \times \pi \times \sqrt{\dfrac{Length \ of \ the \ pendulum \ string}{g} }$

2) The dependent variable = The time it takes for one pendulum swing

3) The independent variable = The length of the pendulum string with weight at the bottom

Explanation:

The relationship between the length of the pendulum string and the time it takes for one pendulum swing is giving as follows;

$T = 2 \cdot \pi \cdot \sqrt{\dfrac{L}{g} }$

Where;

T = The period of oscillation = The time to complete one oscillation =Two swings of the pendulum

L = The length of the pendulum

g = The acceleration due to gravity

Therefore, the time it takes for one pendulum swing is directly proportional to the square root of the length of the pendulum

The dependent variable = The time it takes for one pendulum swing

Th independent variable = The length of the pendulum string with weight at the bottom.

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4 years ago