16 protons and 18 electrons gives the atom a -2 charge because there are 2 more electrons than protons. If it were 16 protons and 16 electrons, the charge would be 0 or neutral.
In order to balance this equation you need to count each element and how many of the individual elements are in the equation. _H2+N2=2 NH3 You multiply the 2 (Which is the coefficient) by the 3 (which is the subscript) This would equal 6 which indicated there are 6 hydrogen atoms on the right side so the left side should also have 6 hydrogen atoms
The missing coefficient on the left side must multiple the 2 to become 6 hydrogen Answer=3
Answer:
I think it's 6 but I'm not quite sure
Answer:
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Equation:
NaOH + HCl ---> NaCl + H20
1mol 1mol
no. of moles of NaOH : 20× (25.0÷1000)=0.5 mol
NaCl : HCl
1mol : 1 mol
0.5mol:0.5mol
HCl molarity: 0.5 mol ÷ (10÷1000) =50 M