You leave a piece of bread outside for a few days. It forms green and blue mold. It smells awful. A chemical change has occurred
- true or false
explain you answer stating facts that support your answer.
explain you answer stating facts that support your answer.
1 answer:
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Answer : The speed in miles per hour is 22 mile/hr.
The speed in yard per min is 26617.8 yard/min
Explanation :
The conversion used for meters to miles is:
The conversion used for second to hour is:
The conversion used for meter per second to mile per hour is:
As we are given the speed of 407.0 meter per second. Now we have to determine the speed in miles per hour.
So,
Therefore, the speed in miles per hour is 22 mile/hr.
The conversion used for meter to yard
1m = 1.09 yard
The conversion used for second to hour is:
The conversion used for meter per second to mile per hour is:
As we are given the speed of 407.0 meter per second. Now we have to determine the speed in yards per min
So,
Therefore, the speed in yard per min is 26617.8 yard/min
Answer : The volume of will be, 514.11 ml
Explanation :
The balanced chemical reaction will be,
First we have to calculate the mass of in tablet.
Now we have to calculate the moles of .
Molar mass of = 1 + 12 + 3(16) = 61 g/mole
Now we have to calculate the moles of .
From the balanced chemical reaction, we conclude that
As, 1 mole of react to give 1 mole of
So, 0.0202 mole of react to give 0.0202 mole of
The moles of = 0.0202 mole
Now we have to calculate the volume of by using ideal gas equation.
where,
P = pressure of gas = 1.00 atm
V = volume of gas = ?
T = temperature of gas =
n = number of moles of gas = 0.0202 mole
R = gas constant = 0.0821 L.atm/mole.K
Now put all the given values in the ideal gas equation, we get :
Therefore, the volume of will be, 514.11 ml