Answer:
4,1,4
Explanation:
Balancing a synthesis equation
Answer:
no of moles=mass in gm÷molar mass so let x be the mass in gm
4.5=x÷35.5×2
x=4.5×35.5×2 grams
x=319.5 gm
Explanation:
formula
The molarity of HCL is 71mL, the H3O+ 49g, and the pH is 12.
Gold is classified as a Solid
- No of protons=No of electrons=15
<h3>Mass no:-No of neutrons+No of protons </h3>

Now
- It has atomic no 15 hence its Phosphorus(P)
Electronic configuration:-
.
Chloride formula:-

or.
