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slega [8]
3 years ago
10

A passenger elevator travels from the first floor to the 60th floor, a distance of 210 m, in 35s. What is the elevator’s speed?

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
4 0

Answer:6m per second

Explanation:

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What the sample will look like after the temperature is increased from 300 K to 450 KK at constant pressure?
sleet_krkn [62]

Answer:

The sample will look expanded and occupy more space.

Explanation:

Since, the pressure is constant here, but the temperature is changed. Therefore, according to Charles' Law Volume is directly proportional to Temperature, provided the pressure is kept constant. Mathematically:

V1/T1 = V2/T2

V1 = (T1/T2)(V2)

V1 = (300 k/450 k)(V2)

<u>V1 = (0.67)V2</u>

The equation indicates that The fina volume of the gas V2 will be greater than the initial volume V1. <u>Thus, sample will look expanded and occupy more space than the previous state.</u>

5 0
3 years ago
Why is Oxygen classified as an element?
UNO [17]


It can be oxygen in only 1 atom. All elements on the periodic table can stand alone in one atom.

(I took a lucky guess, using some of my knowledge about elements )


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77julia77 [94]

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Explanation:

3 0
3 years ago
Help ASAP please. I don’t understand.
WARRIOR [948]

Answer:

a

Explanation:

4 0
4 years ago
Help here are the choices
Murljashka [212]
PH Answer/definition - A value from 0 to 14 that is used to specify how acidic or basically a compound of when it is dissolved in water.

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Base Answer/definition - A compound that increases hydrogen ions (H+) when it is dissolved in a solution.


Hope this helps you out :)))
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3 years ago
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