Answer:
Explanation:
Given
Compound:
Required
Determine the equivalent mass
In the above compound, we have: 2 Al and 3 (O)
The atomic mass of Aluminium is:
The atomic mass of Oxygen is:
So, the equivalent mass is:
Answer:
The answer would be Uranium-238
Explanation:
It's the only one that lasts longer than 40,000 years
Answer:
Cooling lowers the rate of the chemical reaction in the batteries.
Explanation:
When a battery is not in use and it may undergo some chemical changes which leads to decrease in its life (shelf life).
For example in case of Zinc battery, the zinc undergoes reaction with ammonia which deteriorate the cell or battery.
Now if we keep the battery in a cool place like refrigerator, the rate of chemical reaction will decrease (the rate of reaction generally decreases with decrease in temperature). Thus the battery stay fresh longer.
Answer:
Explanation:
3 moles per Liter = 3 molar
Burning of fossil fuels: when we burn fossil fuels, CO2 is produced
Respiration: when animals respire, they convert O2 to CO2 which is then released into the atmopshere
Hope it helps :)