Answer:
I think this is it.
Explanation:
As all the mass of other molecules are given and we have to find the mass of hydrogen so total subtracted by carbon and oxygen.
Answer:
Explanation:
Using the Ideal Gas Law we have 
and the number of moles n could be expressed as 
, where m is the mass and M is the molar mass.
Now, replacing the number of moles in the equation for the ideal gass law:
If we pass the V to divide:
As the density is expressed as 
, we have:
Solving for the density:
Then we need to convert the units to the S.I.:
Finally we replace the values:
One can only hold 2 electrons which only means shell two can hold 8, and for the first eighteen elements shell three can hold a maximum of eight electrons
An atom consist of mainly two parts, namely nucleus and electrons. In the nucleus, there are groups of protons and neutron DENSELY packed, each element has its own atomic number(number of protons) but can have different no. of neutron (isotop). within the proton and neutron, there are subatomic particles called quarks. Talking about the electrons, they move very quickly arround the nucleus and there are different energy level for electron to switch between. In chemical reaction, we are only concerning the no. of valence electrons.
Can you follow me and like me please?
After reading a book about parrots, Tani wants to
learn more about them. The question that could be answered through scientific
investigation is letter B, ‘<span>What
substances make up an eggshell?’ The other choices cannot be answered through
scientific investigation.</span>
