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jeka57 [31]
3 years ago
8

a clown in the park gave a child a balloon filled with 7.00 L of helium at 301 K. What will the volume of the balloon be when th

e child takes it into an air conditioned house at 295 K?
Chemistry
1 answer:
dybincka [34]3 years ago
6 0

Answer:

6.9L

Explanation:

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How many moles are in 135g of Teflon?
Oliga [24]

1.34 moles are in 135g of Teflon.

Explanation:

Molecular formula of teflon is (C2H4)n

mass of teflon = 135 grams

atomic mass of teflon = 100.01 gram/mole

number of moles of teflon = ?

Formula used to calculate number of moles in a substance is given as:

number of moles = \frac{mass}{atomic mass of 1 mole}

putting the values in the above equation:

number of moles = \frac{135}{100.01}

number of moles = 1.34 moles

Teflon is polymer which is used for making non-stick coating, in 135 grams of teflon there are 1.34 moles in it.

5 0
3 years ago
How many liters of 1.5 M HCl solution would react completely with 2.5 moles Ca(OH)2? (2 points)
mylen [45]
Here’s the math for your answer, which is 3.3 L HCl

6 0
3 years ago
You pre-weigh a glass vial to hold your sample and find its mass to be 5.010 g. You add your sample to the vial and reweigh it o
san4es73 [151]
Answer : 1.12 grams

Yo find the mass of the sample, you take the increased mass and subtract the original mass.

6.130 - 5.010 = 1.12
8 0
3 years ago
An observation that does not deal with numbers?
enyata [817]
Qualitative observation. Which is data or information with your senses such as sight, taste, smell, and touch.
5 0
3 years ago
Sulphur +_________ gives ➙ sulphur oxide
Luba_88 [7]

Answer:

Sulphur + oxygen gives ➙ Sulphur oxide

Explanation:

Sulfur oxide is a compound that consists of sulfur and oxygen molecules. I hope this helps!

3 0
3 years ago
Read 2 more answers
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