How would you measure the effect of reactant concentration on the reaction rate


Answer 1


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Which of the following is not a product of cellular respiration? a. CO2
b. Energy
c. C6H12O6
d. H2O



The answer is C


Cellular respiration is a process involving series of metabolic reactions in cells to convert biochemical energy stored in food/nutrients into usable energy (ATP). This process is also accompanied with the release of waste of products.

During cellular respiration, glucose (C6H12O6) is broken down in the presence of oxygen to form carbondioxide (CO2), water (H2O) and Energy (ATP). The equation for this is shown below

C6H12O6 + 6O2 ⇒ 6CO2 + 6H2O + ATP

As seen from the reaction above, C6H12O6 is a reactant in cellular respiration and not a product

C. C6H1206 because glucose is used to make ATP

Solid foods digest faster than liquids.


The answer to this question would be: false

Solid foods have a smaller surface that can be digested by enzyme compared to the liquids food. Liquid food like milk can easily be digested as the substrate spread in the solution to the enzyme can bind freely to the substrate. In solid food, the area that can be digested would be only the outer part of the food. That is why organism have teeth so the food can be cut into smaller pieces, increasing the surface area that can be digested.
On the assumption that this is a true or false question, The answer would be false. Solid foods do not digest faster than liquids.

Before a trip from new york to boston, the pressure in an automobile tire is 1.8 atm at 20.°c. at the end of the trip, the pressure gauge reads 1.9 atm. what is the new celsius temperature of the air inside the tire? (assume tires with constant volume.) answers


Gay-Lussac's law gives the relationship between pressure of gas and temperature. It states for a fixed amount of gas, the pressure of gas is directly proportional to temperature at constant volume. 
P / T = k 
where P - pressure, T - temperature in Kelvin and k - constant

where parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
T1 - temperature in Kelvin - 20 °C + 273 = 293 K
substituting the values in the equation 

T = 309 K 
new temperature in celcius scale - 309 K - 273 = 36 °C

Which theory was first proposed by Albert Einstein?



The correct answer will be- Theory of special relativity.


Albert Einstein was a well-known physicist who is known for his contributions to physics.

He was a theoretical physicist who determined in 1905 that for all non-accelerating observers in the universe the laws of physics are same. He proved this by showing that speed of light in a vacuum remains the same irrespective of the speed of the observer.

Thus, he published his results on this work in 1915 and named this interwoven space-time concept as the theory of relativity and is the correct answer.

Albert Einstein, in his theory of special relativity, determined that the laws of physics are the same for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels. As a result, he found that space and time were interwoven into a single continuum known as space-time. Events that occur at the same time for one observer could occur at different times for another.

General relativity was the first theory proposed by Albert Einstein. The theory is the geometric theory of gravitation. It is the current description of gravitation in modern physics today. It was published in 1915.

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