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zepelin [54]
2 years ago
10

ASAP HURRY FOR BRAINLIST

Chemistry
1 answer:
Serggg [28]2 years ago
5 0

Answer:

unknown 2 po :}

2

unknown 2

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What acid and what base would you choose to prepare the salt potassium perchlorate (kclo4)?
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8 0
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Ratio of nitrogen gas to helium
GarryVolchara [31]

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1 to 696

The expansion ratio of liquefied and cryogenic from the boiling point to ambient is: nitrogen 1 to 696. liquid helium 1 to 757. argon 1 to 847.

Explanation:

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2 years ago
15. If the moon is 384,400km away. Does it take more than a second for light to travel from the Earth to the moon?​
marishachu [46]

Answer:

Yes

Explanation:

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3 0
1 year ago
Which of the following is an inorganic compound?
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6 0
3 years ago
What is the frequency of a wave that has 3 waves every five seconds?
Dmitry [639]

Answer:

Frequency, f = 0.6 Hz

Explanation:

We have,

Number of waves passing through a point are 3

Time for which the waves are passing is 5 seconds

It is required to find the frequency of a wave. The frequency of a wave is defined as the no of waves per unit time. So,

f=\dfrac{n}{t}\\\\f=\dfrac{3}{5}\\\\f=0.6\ Hz

So, the frequency of a wave is 0.6 Hz.

7 0
3 years ago
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