Explanation:
The compound 
is also known as carbon dioxide. It is a gas. It forms when one carbon atom combines with two oxygen atoms.
This can be illustrated as follows.
Consumption of carbon dioxide gas in very low concentrations is not harmful but consumption of its large concentration is very harmful as it can affect the respiratory system.
The time needed by the bike to reach the final velocity is 3 .75 seconds ,Option C is the write answer.
<h3>What is Velocity ?</h3>
It is defined as the distance covered by an object in a given amount of time. It is a vector quantity , its unit is m/s , km/hr etc.
It is given in the question that
Initial Velocity = 20m/s
Final Velocity = 35m/s
Acceleration = 4m/sq.s
Time = ?
The equation of motion
v = u +at will be used
35 = 20 + 4 * t
15 = 4* t
t = 3.75 seconds
Therefore the time needed by the bike to reach the final velocity is 3 .75 seconds.
To know more about Velocity
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Electrons are orbiting the nucleus in the fxed way paths located in solid sphere
Solution :
Molecular mass of NaOH is 23 g/mol .
So, number of moles of NaOH is given by :
Now, we know molarity is given by :
Hence, this is the required solution.
