Answer:
4.97 moles
Explanation:
There are 6.022*10^23 calcium atoms in 1 mole of Ca
2.99*10^24/6.022*10^23
=4.97 moles
Answer:
this is true about respiration (inhalation and exhalation)
Explanation:
inhalation is the exchange of gas from the environmental oxygen to the oxygen in the tissues.
while Exhalation is the gas exchange of CO2 with O2 (the CO2 is exhales from high concentration to the environment of low concentration.
The answer is D. It isn't A because that is the definition of an object's mass. It can't be B because it makes no sense. C has to do with density which involves volume in its calculation (d=mass/volume).
Hello! :)
Energy, definition; Power derived from the utilization of physical or chemical resources, especially to provide light and heat to work machines.
Hope this helps >.<