Answer: 0.479
Explanation:
Based on the information given in the question, we can say that:
A = Americans that believe that statistics teachers know the true meaning of life.
B = Americans that do not believe that statistics teachers know the true meaning of life.
P(A) + P(B) = 1
52.1% + P(B) = 1
0.521 + P(B) = 1
P(B) = 1 - 0.521
P(B) = 0.479
Answer:
4. 5 more girls than boys
5. B
Water molecules are polar (positive charge zones and negative charge zones) this makes the attraction of a na+ ion or a cl- ion to occur.
<h3>How are the water molecules composed?</h3>
This class of molecules that have a distribution of charges are called polar and, consequently, form bonds called hydrogen bonds with other molecules.
These molecules have a permanent dipole moment, that is, they have a structure called dipolar (two poles), this arrangement gives water great power to dissolve substances within it.
Therefore, we can conclude that water molecules are polar (positive charge zones and negative charge zones) this makes the attraction of a na+ ion or a cl- ion to occur.
Learn more about water molecules here: brainly.com/question/12730171
The energy needed to break the bonds of 2 moles of O2 gas would be 968 jk/mol.
<h3>What is a chemical bond?</h3>
A bond is a term that refers to the attractive interaction between atoms and molecules.
The energy needed by moles to interact is measured in joules per mole and is represented as follows:
In the case of O2 moles, they require 494 jk/mol, therefore, if we need to separate 2 moles of O2, we need 968 jk/mol.
Learn more about moles in: brainly.com/question/15209553
The America first committee argued that no foreign power could attack America.
<h3>
Believe of America first committee</h3>
This committee believed that the Soviet Union and Japan were greater threats to U.S security than Germany was.
The America first committee argued that no foreign power could successfully attack a strongly defended United States, such as Nazi or any other powerful nation.
Thus, the America first committee argued that no foreign power could attack America.
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