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NISA [10]
4 years ago
8

Enzymes work by _____.

Chemistry
2 answers:
nydimaria [60]4 years ago
6 0

The correct answer is D. Enzymes work by lowering the energy needed to break bonds.


This is called the activation energy, and enzymes lower the activation energy. Activation energy is the energy required to begin a reaction and enzymes function by decreasing this amount of energy, and thereby allowing reactions to proceed more efficiently within an organism. It is important to recognize that enzymes do not change the amount of energy produced or used by a reaction (making the reaction exothermic or endothermic). Enzymes are typically proteins with specific three-dimensional structures that do not function with varying temperature and pH.


Hope this helps!

DerKrebs [107]4 years ago
3 0
D. lowering the energy needed to break bonds
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4 years ago
Pick the correct statement for the following isotope: a. 42Ca 42 is the mass number and 20 is the atomic number. b. 42 is the nu
kramer

Answer:

A

Explanation:

To label an element correctly using a combination of the symbol, mass number and atomic number furnishes some important information about the element.

We can obtain these information from the element provided that correct labeling of the element is presented. Firstly, after writing the symbol of the element, the atomic number is placed as a subscript on the left while the mass number of the atomic mass is placed as a superscript on the same left.

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3 years ago
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A sample of gas contains 3.0L of nitrogen at 320kPa. What volume would be necessary to decrease the pressure at 110kPa
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V_{2} = 8.92 L

Explanation:

We have the equation for ideal gas expressed as:

PV=nRT

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T = Temperature

From the statement of the problem I infer that we are looking to change the volume and the pressure, maintaining the temperature, so I can calculate the right side of the equation with the data of the initial condition of the gas:

P_{1} V_{1} =nRT

320Kpa*0.003m^{3} =nRT

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nRT= 0.96

Now, as for the final condition:

P_{2}V_{2}=nRT

P_{2} V_{2} =0.96

clearingV_{2}

V_{2} =\frac{0.96}{P_{2} }

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