Answer: The given compounds are arranged according to decreasing boiling point as 
.
Explanation:
The temperature at which vapor pressure of a substance becomes equal to the atmospheric pressure is called boiling point.
Stronger is the intermolecular forces present the atoms of a molecule more heat will be required by it to break the bond between its atoms. Hence, more will the boiling point of the molecule.
In 
(methanol), there is hydrogen bonding present which is a stronger force. So, it will have highest boiling point as compared to 
and 
.
In (chloroform), there is more electronegative atom attached (Cl) is attached to less electronegative atom (C and H). So, electrons are more pulled towards the chlorine atom. So, boiling point of is more than methane 
.
Thus, we can conclude that given compounds are arranged according to decreasing boiling point as .
The percent error of Chemistry student : 7.4%
<h3>
Further explanation
</h3>
Given
40 °C measurement
Required
The percent error
Solution
% Error : difference between the theoretical value and the actual value
or
% Error : Absolute Error / Accepted Value
Absolute Error = Measured Value - Accepted Value
% Error for Chemistry student :
1. Subtract the measurement value with the accepted value
= 40 °C - 43.2 °C
= -3.2 °C
2. Divide by the accepted value, and multiply by 100
= |-3.2/43.2| x 100%
= 7.4%
A 200 what? Then I can help!
Answer: 3
Explanation: I took the k12 quiz
Answer:
B.
Explanation:
Oxidation - losing electrons. It is Zn, and it is losing 2 electrons.
