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posledela
3 years ago
13

If 250. mL of nitrogen is collected at 25.0 degrees C and 105 kPa pressure, what will be the volume of the gas at STP?

Chemistry
1 answer:
Dima020 [189]3 years ago
5 0

Answer:

Calculate the volume of dry gas at STP. 28). A 255-mL sample of nitrogen was collected over water at 21oC at a pressure of 745 mm

Explanation:

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Place the following descriptions in the correct order (1 to 4) to explain how lightning forms.
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Answer: A D C B

Explanation:

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3 years ago
How many valence electrons are transferred from nitrogen atom to potassium in the formation of the compound potassium nitride?
AlexFokin [52]
Answer:
            3 electrons are gained by one nitrogen atom in the formation of K₃N.

Explanation:

The reaction is as follow,

<span>                                       6 K + N</span>₂<span>    </span>→   <span> 2 K</span>₃<span>N
</span>
Oxidation of K,

                                       K     →     K⁺  +  1 e⁻
Or,
                                    6 K     →    6 K⁺  +  6 e⁻

In oxidation reaction potassium atom transfers one electron per atomn and six electrons per six atoms.

Reduction of N;
                                  N₂  +  6 e⁻    →    2 N³⁻

In reduction reaction one molecule of N₂ gains six electrons and 3 electrons per one atom
8 0
3 years ago
Read 2 more answers
What is the mass of 40.34 x 10^23 H2 molecules at stp?
aev [14]
Every mol=6.22*10^23 <span>molecules and every mol of H2 Is 2 gram
40.34*10^23/6.22*10^23=6.48 or 6.5
6.5*2=13 gram
</span>
4 0
3 years ago
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Differentiate photosynthesis and cellular respiration
scZoUnD [109]

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

Explanation:

3 0
3 years ago
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What is the formula of Potassium hydroxide? What is it common name? Is it Alkali?​
seropon [69]
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Question: What is the formula of Potassium hydroxide? What is it common name? Is it Alkali?

Answer: The formula of Potassium hydroxide is KOH. It's common name is Caustic Potash. Yes, it is alkali because Potassium is the most reactive metal.
It is very strong base because it has potassium atom which is the most reactive element. It turns red litmus paper into blue which proves that it is basic in nature.

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8 0
4 years ago
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