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xeze [42]
3 years ago
7

How many atoms of potassium and how

Chemistry
1 answer:
Varvara68 [4.7K]3 years ago
8 0
KOH? 6.022 x 10^23 atoms of potassium(K) are in one mole of KOH
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Where does the largest percent of water exist on Earth?
Ivanshal [37]

Answer:

97% of earth's water is in the ocean. The rest could be found underground, in glaciers and ice, and in rivers and lakes

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3 years ago
36. Dimensional Analysis: A useful way to convert units using multiplication & division *Always start with what you are give
ollegr [7]

Answer:

A) 7.9 x 10⁶ inches

B) 1004 g

C) 2.8 x 10³ inches/ min

D) 1.2 x 10⁻⁴ mm

Explanation:

A) Since 39.37 inches = 1 m, you can convert meters to inches by multiplying by the conversion factor (39.37 inches /  1 m).

Notice that if 39.37 inches = 1 m then 39.37 inches / 1 m = 1. That means that when you multiply by a conversion factor, you are only changing units since it is the same as multiplying by 1 :

2.0 x 10⁵ m * (39.37 inches /  1 m) = 7.9 x 10⁶ inches

B) Conversion factors : (2.205 pounds / 1 kg) and (453.59 g / 1 pound), because 2.205 pounds = 1 kg and 1 pound = 453.59 g. Then:

1.004 kg * ( 2.205 pounds / 1 kg) * ( 453.59 g / 1 pound) = 1004 g

C) Conversion factor: (39.37 inches / 1 m) and (60 s / 1 min)

1.2 m/s * (39.37 inches / 1 m) * ( 60 s / 1 min) = 2.8 x 10³ inches/ min

D)Converison factor ( 1 mm / 1 x 10⁶ nm):

120 nm (1 mm /  1 x 10⁶ nm) = 1.2 x 10⁻⁴ mm

3 0
3 years ago
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How much in grams, does 5.68 x 1022 formula units of potassium dichromate weigh?
Alexxx [7]

Answer:

Explanation:

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Note that rounding errors may occur, so always check the results.

8 0
2 years ago
Please help me there is 19 questions
cupoosta [38]

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1. Hubble

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4.Aristotle

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8.Uranus

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15.Gas giants

16.Kuiper Belt and Ceres,Pluto,eris and haumea.

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18.Ptolemy's model

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meteorite- a piece of rock or metal that has fallen to the earth's surface from outer space as a meteor.

the relationship is the diagram I drew at the top.

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6 0
3 years ago
Because of friction?
Zanzabum

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what do you mean?

Explanation:

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