What is a disadvantage of using a space-filling model to show a chemical compound?
Answers
Answer:
B Space-filling models do not identify the number and type of bonds.
Explanation:
edge test
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Concentrated hydrogen peroxide solutions are explosively decomposed by traces of transition metal ions (such as Mn or Fe): 2H2O2(aq) ---> 2H2O(l) + O2(g)What volume of pure O2(g), collected at 27C and 746 torr, would be generated by decomposition of 125 g of a 50.0% by mass hydrogen peroxide solution?
a sample of copper wire with a mass of 1.659 g is heated with excess powdered sulfur until the copper has combined with the sulfur, and all the extra sulfur has been burned off. The final product (a sulfide of copper ) has a mass of 2.080 g. Calculate the empirical formula of the product, and name it.
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Enter the appropriate symbol for an isotope of calcium-42 corresponding to the isotope notation AZX.Express your answer as a chemical symbol using isotope notation.4020Ca
Answers
Answer:
Buffers.
Explanation:
Hello,
When the body experiences acidic conditions, buffers such as phosphates in form of sodium-based phosphates and bicarbonates are produced by itself in order to stabilize the inner pH. Such buffers are majorly produced in the blood.
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Final answer:
To neutralize acidic conditions, the body produces buffers, such as bicarbonate ions, which combine with hydrogen ions to regulate blood pH, maintaining it at around 7.4 for proper physiological function.
Explanation:
The human body produces substances known as buffers to neutralize acidic conditions and maintain homeostasis. These buffers include a combination of carbonic acid (H₂CO₃), bicarbonate ions (HCO₃⁻), and carbon dioxide (CO₂). When there's a decrease in blood pH, indicating acidity, bicarbonate ions can bind to free hydrogen ions, forming carbonic acid, which can then be converted to CO₂ and exhaled through the lungs, thereby reducing acidity.
If the blood becomes too alkaline, carbonic acid can release hydrogen ions, lowering pH. Furthermore, the kidneys regulate blood pH by excreting excess hydrogen ions and reabsorbing bicarbonate. An example of this regulation is when lactic acid, produced in our muscles during exercise, is neutralized by bicarbonate ions, forming carbonic acid that breaks down into CO₂ and water.
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Answers
Answer:
call an vet ASAP 10 pounds of chocolate is very bad for a dog.
Explanation:
Chocolate is one of the worst things a dog can eat, and 10 pounds of it is worst! Take your dog to the vet IMMEDIATELY! I hope that that the dog will survive.
-------------------------------------------------------------------------------------------------------------Brainiest would make my day, but you don’t have to give it! You’re welcome.
Answers
Hope this helped :)
a. Protons
b. Neutrons
c. Valence Electron
d. Nucleus
Answers
Answer:
Explanation: Valance Electron
B. 1200 mL
C. 10.0 L
D. 50.0 mL
Answers
The final temperature is -170.625 degree Celsius ,-191.1 degree C, 409.5 degree C,-272.66 degrees Celsius .
What is Charle's Law ?
According to Charle's Law , For an Ideal Gas , the volume is directly proportional to temperature when no. of moles and Pressure remains constant.
It is given in the question that
A gas has a volume of 4.00 L
T = 0 degree Celsius = 273 K
T' = ? for each scenario
the volume of the gas = 1.5 l , 1200ml , 10 l , 50ml
if n and p do not change
For V₂ = 1.5 l
4 / 273 = 1.5 / T₂
T₂ = 1.5*273/4
T₂ = 102.375 K = -170.625 degree Celsius
For V₂ = 1.2 l
4/273 = 1.2/T₂
T₂ = 81.9 K = -191.1 degree C
For V₂ = 10 l
4/273 = 10/T₂
T₂ = 682.5 K= 409.5 degree C
For V₂ = 50/1000= 0.005L
4/273 = 0.005/T₂
T₂ = 0.34125 K= -272.66 degree C
Therefore the final temperature in degrees Celsius has been determined.
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Answers
Answer:
Yes.
Molecules always move in most objects, but in solids, they are extremely slow. Liquids move slower than gases, but move more than solids.
Final answer:
Molecules do move in a liquid, as they are free to slide past each other and change neighbors due to their mutual attraction. This allows liquids to flow and take the shape of their containers. The speed of this movement can depend on the mass of the molecules - lighter ones move and diffuse faster.
Explanation:
Yes, indeed, molecules do move in a liquid. This is due to the fact that liquids are typically in a more energetic state in which their particles can slide past one another and change neighbors. However, these particles remain closely held together by their mutual attraction which maintains the liquid's lack of shape conformity.
In liquids, unlike solids, the atoms or molecules are free to move around, which contributes to them being classified as a type of fluid. Due to their capacity to flow and rearrange their molecular structure, liquids deform easily when under stress. Once the force is removed, they don't return to their initial form, which is evidenced when a liquid takes the shape of a container it's put in.
Finally, the movement of these molecules is also somewhat dependent on their mass. Heavier molecules tend to move slower and are therefore slower to diffuse. In contrast, lighter molecules tend to move and diffuse faster.
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