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nordsb [41]
3 years ago
15

Which statement about subatomic particles is true?

Chemistry
1 answer:
Lera25 [3.4K]3 years ago
6 0

Answer:

C

Explanation:

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C. 1/1,837

Explanation:

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How many grams of hydrogen gas get produced if 10 g of aluminum reacts?
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3 years ago
A cube of an unknown metal is 1.25 inches on each side and has a mass of 128.3741 g. What is its' density?
Mademuasel [1]
Hey there!

To find the density of an object, you must use this formula:
Density=Mass/Volume

Knowing that your mass is 128.3741, the only information you need left would be to find the volume of the cube.

Because the side length of the cube is given, you can multiply the length three times in order to find its volume:
1.25*1.25*1.25
=1.953125

Now that you have your volume and mass, divide the mass by the volume to find the density:
128.3741/1.953125
=65.7275392

Therefore, your density would be 65.7275392 grams per inches cubed.
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3 years ago
While following the Dumas method, a student assumes that the contents of the container are the same temperature as the water bat
Nataliya [291]

Answer:

A

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the Molar mass will be smaller as the content of the container is not directly proportional to the temperature of the water bath.

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If a gas has a volume of 3.20 L at 273 K, what will be its new volume at 373 K?
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Answer:

Explanation:

Example #1: How many moles of oxygen will occupy a volume of 2.50 L at STP? Standard ... What is the volume of gas at 2.00 atm and 200.0 K if its original volume was ... P2 = 2.00 atm 2.000tm) 273k. T=273k. 200.0k. Tz= 200.0k. V, = 200.0L ... A gas has a pressure of 0.370 atm at 50.0°C. What is the pressure at standard.

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