Answer : First, he should measure how long it takes for the liquid to become clear if X and Y are mixed together. Then, he should measure how long it takes if he also adds substance A to X and Y. He will find out if substance A is a catalyst
Explanation : Measuring the time taken for the liquid to become clear when X and Y were mixed together will give an assumption about the reaction time and the rate of reaction.
Then same measurement should be done when the substance A is added to the liquid of X and Y mixture. If there is a fast reaction that occurs when A is added to the reaction mixture then it can be concluded that A acts as an catalyst for mixing X with Y. Also, by comparing the reaction rates of both the reaction it can be easily concluded that A was a catalyst or not.
Answer:
The answer is B
Explanation:
Just did the test and got it right
Answer:
the answer is D on edge 2021
Explanation:
b. Add a catalyst
c. Decrease the pressure
d. Use larger pieces of solid reactants
e. Decrease the concentration of the reactants
Answer:
Explanation:
Catalysis is a process that accelerates chemical reactions due to molecules called catalysts, which provide ways to reach products that require less energy.
A catalyst intervenes in the reaction mechanism, but is not consumed. This means that the catalyst participates in some stage of the reaction, but then regenerates.
In addition, a catalyst is used in a small amount: a minimum mole percentage, with respect to reagents, is usually required to observe an increase in velocity.
There are three types of catalysis:
The absence of a catalyst can make the reaction so slow that it never occurs. Therefore, when the catalyst of a reaction is removed, the reaction may stop.
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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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.
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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b. False
the answer is false cause i tried true first and got it wrong.
Answer:
False
Explanation:
Not all solids have an orderly internal structure, although some do which are called crystalline solids. Some examples are metals and table salt. Solids without a orderly internal structure are called amorphous solids. Examples of this are glass, plastics, and rubber.