Percent (%) Composition of CuO
Cu = 1 x 50g - Multiply by one as there is one Cu
O = 1 x 12.5g - Multiply by one as there is one O
CuO = 62.5g
% for Cu = 50g over 62.5 multiplied by 100 = 80%
% for O = 12.5g over 62.5 multiplied by 100 = 20%
Final Answer :
<em>Percent (%) Composition of CuO = </em>80% (Cu) & 20% (O)
Answer:
The indivisibility of an atom was proved wrong: an atom can be further subdivided into protons, neutrons and electrons...
hope this helps u
Explanation:
When an element is displaced by another element in a compound then it is known as a single displacement reaction.
For example, is a single displacement reaction.
Similarly when a hockey player has the puck in the corner of the rink. An opposing player muscles him aside and emerge with the puck displays that a single player is displacing a person.
Thus, we can conclude that this situation is most analogous to single displacement reaction.
I believe B) in both chemical changes and physical changes since in chemical changes, nothing is created or destroyed. In physical changes same thing but with matter.
The atomic number refers to tell if the number has the amount of protons for a nucleus in an atom. This is shown that the chemical effects of an element has in its singular form in the periodic table