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Ipatiy [6.2K]
3 years ago
10

Question 1 (1 point)

Chemistry
1 answer:
Dima020 [189]3 years ago
4 0

Answer:

1. Both are made up of two substances that are chemically combined.                   2. oxygen(O2) , 3. CARBON (C) , 4. AIR(N2 nixed with O2 AND CO2), 5. CANNOT BE SEPARATED BY PHYSICAL MEANS

Explanation:

<em>HOPE IT HELPS</em>

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Water can be formed in the following reaction:
Komok [63]

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 Explanation

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The  moles of O2  is determined using the mole  ratio  of H2:O2

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If the moles of H2  is 8  moles therefore  the moles  of O2

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3 0
3 years ago
How many grams are in 5 mols of KOH​
elena55 [62]

Answer:

0.08911760029829444

Explanation:

hop that this what you wanted

8 0
3 years ago
If 17.8 grams of KOH dissolve in enough water to make a 198-gram solution, what is the concentration in percent by mass?
sleet_krkn [62]
Solute of solution = 17.8 g

Solvn = 198 g

% = 17.8 / 198

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hope this helps!
7 0
3 years ago
Which element is less electronegative than silicon (Si)? A. Sulfur (S) B. Magnesium (Mg) C. Carbon (C) D. Oxygen (0)​
Luden [163]

Answer:

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Explanation:

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Why are objects in the solar system different from each other
iren2701 [21]
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4 0
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