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matrenka [14]
2 years ago
11

What is hydrogen ?,,,​

Chemistry
2 answers:
ASHA 777 [7]2 years ago
6 0

Answer:

Hydrogen is the lightest element in the periodic table. Hydrogen is a gas of diatomic molecules and is colorless, odorless, non-toxic, and highly combustible. It is the most abundant chemical substance in the universe as it constitutes roughly 75% of all normal matter.

Ket [755]2 years ago
5 0

Answer:

It is an odorless, nontoxic, highly combustible substance. It is the chemical substance with the atomic number 1 and the symbol H

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C.) Is heating of cobalt (ii) chloride crystals a chemical change or a physical change (Imk)​
miv72 [106K]

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Explanation:

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Some bacteria cells make people sick by releasing large molecules called toxins that affect your bodies. What
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3 years ago
Which electromagnetic wave does the student replace the question mark with in the table?
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2 years ago
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Combustion of ethylene glycol leads to a change in internal energy (\DeltaU) of –1189 kJ at 298 K. What is the corresponding cha
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-1190.24 kJ

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