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Jobisdone [24]
3 years ago
9

Which phrase best describes a chemical reaction? A. mixing two substances B. the combustion of a substance C. forming or breakin

g bonds D. the decomposition of particles
Chemistry
2 answers:
nirvana33 [79]3 years ago
6 0
The answer for the problem is C
Harman [31]3 years ago
4 0

Answer is: C. forming or breaking bonds.

In a chemical reaction, chemical bonds are forming and breaking and this cause the transformation of one group of chemical substances to another

For example synthesis of water from its elements: 2H₂ + O₂ → 2H₂O, nonpolar bonds between hydrogen and oxygen atoms are breaking and new polar bonds are forming between hydrogen and oxygen in molecule of water.

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Of ozone, molecular oxygen, and oxygen radicals, which is the most stable form of oxygen? How do you know?
PtichkaEL [24]

Oxygen has a strong double bond which has more stability than the single co-ordinate bond in ozone, therefore more energy is required to break the O2 bonding than ozone, so the ozone molecule is more reactive than oxygen gas. ... The oxygen free radical contains two unpaired electrons in its valence shell.

5 0
2 years ago
Which is the first news paper of Nepal​
Airida [17]

Answer:

Nepal Bhasa Patrika

Explanation:

Nepal Bhasa Patrika

3 0
2 years ago
Nitrogen reacts with hydrogen to produce ammonia gas as follows. mc023-1.jpg How many moles of nitrogen would react with excess
anzhelika [568]
The balanced reaction is:

N2 + 3H2 = 2NH3

We are given the amount of the product to be produced.This will be the starting point of our calculations. We use the ideal gas equation to find for the number of moles.

<span>
n = PV / RT = 1.00(.520 L) / (0.08206 atm L/mol K ) 273 K
n= 0.0232 mol NH3

</span>0.0232 mol NH3 (1 mol N2 / 2 mol NH3) = 0.0116 mol N2


<span>Therefore, the correct answer is A.</span>

7 0
3 years ago
Read 2 more answers
How is a simple cell constructed​
ki77a [65]

Answer:

a simple voltaic cell is made by immersing one zinc plate and one copper plate inside water diluted sulfuric acid solution.

4 0
2 years ago
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Why don't we discuss the results during the results section of the project?
snow_tiger [21]

Answer: The result section of the project contains your findings while carrying out your research or study.

Explanation:

The Results section of a research or study usually contains only the findings of your study or research.The findings which usually include

1. Data presented in tables, charts, graphs, and other figures.

2. A contextual analysis of this data explaining its meanings. Usually in sentences.

Our result gotten is not discussed in result section because every project or research work has a discussion page where every results or findings are discussed. The result section is expected to carry what you found.

4 0
3 years ago
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