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Furkat [3]
3 years ago
5

When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 20.4 g g of carbon were burned in the presence

of 70.4 g
of oxygen, 16.0 g of oxygen remained unreacted. What mass of carbon dioxide was produced?
Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
3 0

Answer:

C + O2 -> CO2

C 20.4/12 = 1.7

O 70.4-16.0/16=3.4

CO2 1.7 mol * 44 = 74.8

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Does the number of ions in solution increase, decrease, or remain constant?
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0. Give an example of how an organism can use surface tension.<br><br><br>​
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3 0
3 years ago
A) For the following reaction, K &gt; 1. Classify each of the reactants and products based on their strength as Bronsted-Lowry a
Aleks04 [339]

Answer:

Explanation:

According to Bronsted-Lowry acids or base theory ,  the reagent capable of giving hydrogen ion or proton  will be acid and that which accepts hydrogen ion or proton  will be base .

C₉H₇N + HNO₂   ⇄    C₉H₇NH⁺ + NO₂⁻

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B )

when K < 1 , reaction above proceeds from right to left . That means

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Hence ,  NO₂⁻ is a bronsted base and C₉H₇NH⁺ is a bronsted acid .

4 0
3 years ago
How many atoms are in 4H3BO3
maksim [4K]

1 mole of h3bo3...........6.023*10²³ each h and B and 0 so we will have 3hydrogen+ 1 B+3 oxygen = 7*6.023*10²³ atoms

1 mole .......7*6.023*10²³atoms

4 moles ........x atoms

x=4*7*6.023*10²³.

3 0
3 years ago
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