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Mashutka [201]
3 years ago
14

The basic principle in balancing a chemical equation is to ______.

Chemistry
1 answer:
earnstyle [38]3 years ago
6 0

Answer: obey the law of conservation of mass.

Explanation:

The law of conservation of mass states that matter can not be created nor be destroyed but can be transformed from one form to another. Whenever one balance an equation, if the equation is not balance it means something has be destroyed or created, this we give an ideal that the equation is not balance or wrong.

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You perform a combustion analysis on a 255 mg sample of a substance that contains only C, H, and O, and you find that 561 mg of
zhuklara [117]
The combustion of an organic compound is mostly written as,
                        CaHbOc + O2 --> CO2 + H2O
where a, b, and c are supposed to be the subscripts of the elements C, H, and O in the compound. Determining the number of moles of C and H in the product which is the same as that in the compound,
   (Carbon, C)   :   (561 mg) x (12/44) = 153 mg x (1 mmole/12 mg) = 12.75
   (Hydrogen, H) :  (306 mg) x (2/18)  = 34 mg x (1 mmole/1 mg) = 34 
   Calculating for amount of O in the sample,
(oxygen, O) = 255 - 153 mg - 34 mg = 68 mg x (1mmole/16 mg) = 4.25 
The empirical formula is therefore,
                        C(51/4)H34O17/4
                           C3H8O1
The molar mass of the empirical formula is 60. Therefore, the molecular formula of the compound is,
                                C9H24O3
5 0
3 years ago
Read 2 more answers
Which numbers are shown in the symbol for a radioactive nuclide?
xz_007 [3.2K]
It would be 6 because of the elements
3 0
3 years ago
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Can you show me the answer and explain?
Hitman42 [59]

Answer:

C

Explanation:

looking at a periodic table X is fluorine and Y is potassium

Fluorine is in group 7 and forms a 1- charge (which gains electrons) and potassium is in group 1 and forms a 1+ charge (which loses electrons)

Fluorine (X) has an electronic structure of 2,7 and needs to gain an electron from Potassium (Y) to have a full outer shell and potassium has an electronic structure of 2,8,8,1 so needs to lose an electron to have a full outer shell as well. This means that the electron that potassium (Y) has lost is given away to fluorine (X), so both elements become stable.

This is known as ionic bonding where metals (like potassium) lose electrons and non-metals (like fluorine) gain electrons to become more stable, forming ions

Any further clarification let me know

6 0
2 years ago
Which of the conservationists discussed earlier in this unit is
Arte-miy333 [17]

The correct answer is A. The conservationist credited with founding the Wilderness Society is Bob Marshall.

Bob Marshall was an American forester, botanist, traveler, climber, writer and social activist who advocated the preservation of unspoiled wildlife.

 

He actively contributed to the development and adoption of environmental regulations prohibiting the construction of roads in vast federal specially protected natural areas. In 1935 he became one of the founders of the public environmental organization The Wilderness Society and its main sponsor.  

Today Bob Marshall is considered one of the main initiators of the wildlife movement in the United States. Several geographic features are named after him, including the Bob Marshall Wilderness Nature Reserve in Montana and the Marshall Mountain on the Adirondack Ridge.

Learn more in brainly.com/question/24828125

6 0
2 years ago
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What refers to the body’s inability to maintain a stable internal environment.
dalvyx [7]
One term could be allostasis, the opposite of homeostasis.

Other antonyms of homeostasis, the body's ability to maintain a stable internal environment, include imbalance, instability, etc.
8 0
3 years ago
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