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Mumz [18]
3 years ago
8

Something used to power some devices.

Chemistry
1 answer:
weeeeeb [17]3 years ago
6 0

Answer:

electricity

Explanation:

or maybe food

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A solution is prepared by dissolving sugar in water. The solution is 25% by mass, sugar. How many grams of water are in 472 gram
stepan [7]

Answer:

352

Explanation:

.75 times 472 because .25 is sugar so .75 is watet

4 0
3 years ago
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Each iron atom has a mass of about 9 × 10–23 grams. Even a small grain of iron has an incredible number of atoms in it—about 1 x
Tema [17]

Answer:

Explanation:

Each iron atom has a mass of about 9 x 1023 grams. Even a small grain of iron has an incredible number of atoms in. it--about 1 x 1018 atoms in one grain. ...

6 0
2 years ago
Calculate the number of moles in 25.0 g of each of the
mamaluj [8]

Answer:

A. 6.25moles

B. 0.78moles

C. 0.32moles

D. 0.15moles

E. 0.43moles

Explanation:

use

  • n = mass/molar mass

A. He

  • 25/4 = 6.25moles

B. O2

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C. Al(OH)3

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D. GaS3

  • 70+3(32) = 166
  • 25/166 = 0.15moles

E. C4H10

  • 4(12)+10(1) =58
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5 0
2 years ago
We both have 10 neutrons in our nuclei. What are we?
Goryan [66]
Not so sure but i think neon
7 0
3 years ago
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An ice cube is placed on a kitchen counter. Which best describes heat flow in this situation
Sauron [17]
<span>When an ice cube is placed on a kitchen counter, heat will flow from the ice cube to the counter, causing the molecules in the counter to move more slowly. The molecules of the counter move more slowly because the heat transferred to them from the ice has reduced their kinetic energy.</span>
7 0
3 years ago
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