Answer:
Option A,+4
Explanation:
Oxidation state of any element is the sum of oxidation of all elements =0
Here we need to find oxidation no of carbon and consider oxidation no of carbon as X and oxidation number of oxygen is -2
Then X+2(-2)=0 (since 2 oxygen atoms are there in CO2 )
X-4=0
X=+4
The sequence which represents the relationship between temperature and volume:
higher temperature --> more kinetic energy --> more space between particles higher volume
Explanation:
The above sequence is based on the Charles' law. This law states that at "a fixed mass of gas" and "at constant pressure", volume is directly proportional to temperature.
When the molecules in a container "collide with the wall", the pressure and momentum increase. Due to the increase in temperature the kinetic energy also increases. Thus, when the "momentum perpendicular" to the wall of the container is reversed it will have larger value. To reduce the rate of the collisions and to keep the pressure constant, the volume will have to be bncreased.
Moles = Mass/Molar Mass
By this formula 458/207+32 you should get your answer.
Answer is 1.916 mol to 4 sig. Fig.
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Answer:
Answer in the attached file
Answer:
The subscript of the O₂ molecule is the small “2” at the lower right-hand corner of the “O”.
Explanation:
A <em>subscript</em> is a letter or a number that is written below the line.
In chemistry, a subscript after an atomic symbol tells you <em>how many of those atoms</em> are in the unit.
Thus, the subscript in O₂ tells you that there are <em>two oxygen atom</em>s in a <em>molecule of oxygen</em>.
