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81

Friday, September 13th 2019, 2:34am

Alchemist Jabir ibn Hayyan?

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82

Friday, September 13th 2019, 2:43am

Alchemist Jabir ibn Hayyan?
That's the right answer.

So here's a small amount of information about Jabir ibn Hayyan and his works: he mainly did philosophy, but just like the men who were busy with Philosophy in that age (8th-9th century) he didn't just stop with that. He also had works on maths, astronomy (as well as astrology), physics, pharmacy, engineering and, as you can guess, alchemy (which is the foundation of chemistry). He wrote a book called Kitab al-Kimya which could be translated as the "Book of Chemistry" (but was translated as "Book of Alchemy" because for a good eight hundred years, something called chemistry didn't exist in Europe because... well, middle age). He's known as the "Father of Alchemy" alongside with Lavoisier, Dalton, Boyle and a lot of others because he created the first known systematic classification of chemical substances (acidic and basic).
It's better to be silent and be thought a fool than to speak and remove all doubt. What's even better is to weaponize your words to destroy anyone who dares challenge you.

83

Friday, September 13th 2019, 3:02am

Who is the first man to go down in history as "The Father of Chemistry" ?
Jabir ibn Hayyan

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Location: Pennsylvania

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84

Friday, September 13th 2019, 3:04am

What is the main constituent of coal gas?

A. Oxygen
B. Water
C. Nitrogen
D. Methane
I don't have no fear of death. My only fear is coming back reincarnated.

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85

Friday, September 13th 2019, 3:17am

What is the main constituent of coal gas?

A. Oxygen
B. Water
C. Nitrogen
D. Methane
Methane
It's better to be silent and be thought a fool than to speak and remove all doubt. What's even better is to weaponize your words to destroy anyone who dares challenge you.

86

Friday, September 13th 2019, 3:20am

What is the main constituent of coal gas?

A. Oxygen
B. Water
C. Nitrogen
D. Methane


After reading several german pages and learning much about gas providing
houses in former times to create light and use cooking spots i decide to say

b) Water

87

Friday, September 13th 2019, 3:44am

What are Non-metals (formerly called metalloids) ?

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Location: Pennsylvania

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88

Friday, September 13th 2019, 3:54am

What is the main constituent of coal gas?

A. Oxygen
B. Water
C. Nitrogen
D. Methane
Methane



correct
I don't have no fear of death. My only fear is coming back reincarnated.

89

Friday, September 13th 2019, 4:19am

What are Non-metals (formerly called metalloids) ?


wanted to know like:

Non-metals are the elements in groups 14-16 of the periodic table.
Non-metals are not able to conduct electricity or heat very well.
The non-metals have no metallic luster, and do not reflect light.

90

Friday, September 13th 2019, 5:25am

The jester zAquisgran wanted to play a prank on the village elder with balloons with strange substance inside. Unfortunately he walked right into a rapid dog, fell down, and the balloons were popped!
for a few second, everyone at the square spoke in a very high pitch squeaky voice! what could have possibly caused this?

91

Friday, September 13th 2019, 6:08am

What element has this formula ? C14-H18-N2-O5

92

Friday, September 13th 2019, 6:29am

The jester zAquisgran wanted to play a prank on the village elder with balloons with strange substance inside. Unfortunately he walked right into a rapid dog, fell down, and the balloons were popped!
for a few second, everyone at the square spoke in a very high pitch squeaky voice! what could have possibly caused this?

It is helium!

93

Friday, September 13th 2019, 7:49am

What element has this formula ? C14-H18-N2-O5
It is aspartame

94

Friday, September 13th 2019, 8:38am

What is the main gas found in the air we breathe?

96

Friday, September 13th 2019, 9:19am

oxygen
The answer is wrong :/ The correct answer is nitrogen.

Oxygen only makes up about 21% of air. About 78% of the air you breathe is made up of another gas called nitrogen.

97

Friday, September 13th 2019, 10:50am

What do you get if you let react 6CO2 + 6H20 ?

98

Friday, September 13th 2019, 11:23am

photosynthesis.

99

Friday, September 13th 2019, 11:32am

What is the fourth most abundant element in the universe in terms of mass?

100

Friday, September 13th 2019, 11:34am

photosynthesis.


correct