CHEMISTRY HIGH SCHOOL

The sturdy wall outside of a skyscraper could be most easily compared to Question 14 options:

A cell membrane


B mitochondrion


C chloroplast


D cell wall

Answers

Answer 1
Answer: I think the answer is A because the job of a cell membrane is to provide protection to the plant. A cell membrane has a sturdy wall.

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Explanation of atomic radius​
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You may normally expect a slow reaction if a low activation energy is required.

Answers

The statement is false. A low activation energy does not signifies a slower reaction rather it may mean that the reaction would proceed faster. A low activation energy means a low energy requirement for the reaction to occur which results to much faster production of products.

Answer:

False

Explanation:

In science what is acid
​

Answers

In science, an acid is a chemical substance that has a pH value less than 7. It is characterized by the presence of hydrogen ions (H+) when dissolved in water. Acids can donate protons or accept electrons during chemical reactions. They have sour taste, can corrode certain metals, and can turn blue litmus paper red.

In a biochemical reaction, an enzyme acts as a catalyst, causing the(1) activation energy of the reaction to decrease
(2) potential energy of the reactants to decrease
(3) kinetic energy of the reactants to increase
(4) heat of reaction to increase

Answers

(1) activation energy of the reaction to decrease.

What is Aqua Auras mineral family/class?

Answers

Aqua Auras belong to the Quartz family. It's a synthetic type of Quarts that was enhanced with the help of gold coating, and sometimes other materials. The reason why it's called as aqua is because of its distinctive blue color thanks to the procedure which made it.

Which component is required for the activation of some enzymes?a) Presence of a co-factor
b) Basic pH levels in the substrate
c) Higher enzyme concentration
d) Lower temperature in the substrate

Answers

The correct answer is option A.

Presence of a co-factor is required for the activation of some enzymes. Co-factors are generally metal ions or small molecules (non-protein).Co-factors helps enzymes bind substrate tightly.  For example, NAD⁺/NADH is a co-factor which is required for the activation of the enzyme dehydrogenase. NAD⁺ is the oxidized form and NADH is the reduced form.

The best answer is letter A. 
The main factors that change the speed of enzymatic reactions are temperature, pH and substrate concentration (quantity). There are enzymes that need other associated molecules to work. These molecules are called enzyme co-factors. They can be organic ions like mineral salts.

Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result from the fact that water molecules _____. a) tend to repel each other.b) are very small.
c) are in constant motion.
d) are extremely large.
e) are electrically attracted to each other.

Answers

Answer: are electrically attracted to each other

Explanation:Water molecules are attracted to each other by partial negative and positive charges on the oxygen and hydrogen atoms, respectively
The water molecules are electrically attracted to each other tend to repel because they want to move freely
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