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kenny6666 [7]
3 years ago
14

Describe the observation Robert Brown made.​

Chemistry
2 answers:
12345 [234]3 years ago
3 0

Answer:

In 1827, Brown observed, using a microscope, that small particles ejected from pollen grains suspended in water executed a kind of continuous and jittery movement, this was named “Brownian motion”. ... This random movement of particles suspended in a fluid is now called after him.

Explanation:

HOPE this helps :)

gladu [14]3 years ago
3 0

Answer:

In 1827, Brown observed, using a microscope, that small particles ejected from pollen grains suspended in water executed a kind of continuous and jittery movement, this was named “Brownian motion.This random movement of particles suspended in a fluid is now called after him.

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Answer:

He

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An atom that has lost one or more electrons is a(n) _______
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Answer:

An atom that loses one or more valence electrons to become a positively charged ion is known as a cation, while an atom that gains electrons and becomes negatively charged is known as an anion.

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How many moles of ammonia gas occupy 50 mL at at 700 kPa and 30.0 0C?
nalin [4]

For the conversions

I will start with pressure
1atm=101.3kPa
x =700kPa
x=700kPa/101.3kPa
x=6.91atm

Temperature
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303K

Volume
1L=1000ml
x =50ml
x=0.05L

PV=nRT
6.91*0.05=n*0.08206*303
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0.0138=n
number of moles = 0.0138moles

Note: 0.08206 is the gas constant in this case
6 0
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