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Elena L [17]
2 years ago
15

Was Velcro a mistake or purpose

Chemistry
1 answer:
Vera_Pavlovna [14]2 years ago
6 0

Answer:

Velcro was an accident.

Explanation:

hope it helps

sry if im wrong

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At what temperature will 0.654 moles of helium gas occupy 12.30 liters at 1.95 atmospheres?
DedPeter [7]

Answer:

447,25k

Explanation:

According to the ideal gas law

PV=nRT

Where:

P: is the pressure of the gas in atmospheres.

V: is the volume of the gas in liters.

n: number of moles of the gas

R: ideal gas constant

T: absolute temperature of the gas in kelvin

now using:

T=\frac{PV}{nR}\\ \\T=\frac{12,3L.1,95atm}{0,654mol.0,082(L.atm/K.mol)}\\ \\T=447,25K

3 0
3 years ago
What effect does a catalyst have on a system in equilibrium?
irina1246 [14]

A catalyst is when a chemical reaction occurs faster than normal.

The system is unaffected during a catalyst because both forward and reverse reactions are affected, meaning that quilibrium will occur faster nothing will change.


Hope it helped,


BioTeacher101

4 0
3 years ago
Read 2 more answers
Why don’t these gases tend to form chemical bonds?
erik [133]

If you’re talking about noble gases, the answer would be A. Since noble gases already have 8 electrons, they don’t tend to form chemical bonds. And elements need just 8 electrons on there shells to be stable.

6 0
3 years ago
An asteroid in space has traveled 4,500 km in 60 s, what is the average speed of the asteroid?
weqwewe [10]
The average speed is 75 Km per hour. Remember the equation for speed is Speed = Distance divided by Time
6 0
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A block has a mass of 20g and measures 2cm*4cm*2cm, will it sink or float?
stich3 [128]
It will float, because it is almost weighs like a pen.
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