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Varvara68 [4.7K]
3 years ago
13

How many moles of iron would be needed to react with 3.82 moles of oxygen

Chemistry
1 answer:
Rashid [163]3 years ago
8 0

Answer:

5.09

Explanation:

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A centimeter and millimeter differ from each other by a factor of _____ ?
Liono4ka [1.6K]



The answer is:  "10" .
_______________________________________________________________
  " A centimeter and millimeter differ from each other by a factor of "10" .
_______________________________________________________________
Note:
____________________________
100 cm = 1 m


1000 mm = 1m

____________
100 * (10) = 1000 .
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The answer is:  "10".
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  " A centimeter and millimeter differ from each other by a factor of "10".
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7 0
2 years ago
U-238 has _____ protons and 146 neutrons
qaws [65]
U-238 
The number besides the U means its total molar mass. The molar mass of this element is 238
Molar mass= protons + neutrons
This means that 238= 146 + protons
Do 238 - 146
Answer is 92
6 0
2 years ago
Need some help with this problem please!
Tom [10]

Answer:

18 liters

Explanation:

Step 1: Figure out what the formula and what you are dealing with.

- 25 degrees celcius is constant, so it is irrelevant for the mathmatical part.

- P1 = 1 atm

- P2 = 20 atm

- V1 = 360 liters

- V2 = trying to find

Note: remember the original equation is V1/P1 = V2/P2

- Step 2: Rearrange the equation to fit this problem, you should get...

V2 = V1 x P1 / P2

- Step 3: Fill our own numbers in. You should get...

360 L x 1 atm / 20 atm = 18 Liters (do the math)

- Answer = 18 Liters

- Remember to just follow the formula and fill it in with your own numbers.

If you need any more help comment below. I am happy to help anytime.

7 0
3 years ago
1 A 3.80 g sample of bronze was dissolved in sulphuric acid. The copper in alloy reacted with
s344n2d4d5 [400]

Answer:

yeyeye

Explanation:

hi and bye  no problem you will come and die

3 0
2 years ago
Chelsea went ice skating. The ice, her skates, the Zamboni, and the rink building were all examples of solids she encountered. S
inysia [295]

Answer:

Answers are C, D

Explanation:

Solid particles always stick together no matter what happens unless it is changing into a liquid. If you are talking about vibration for solid particles that only applies to thermal vibratio so not A. They do not slide past each other because they are packed very tightly together. They have a definite shape and volume because they stay together unless facing heat. Hopefully this helps you :)

pls mark brainlest ;)

4 0
3 years ago
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