Most elements tend to have the same number of electrons and protons. This gives the element a neutral charge, aka no charge at all.
Here is an example:- Flourine
7 electrons and 7 protons
the correct answer is, it will rise, i just answered that question on studyisland.
Because their species is in danger of going extinct<span />
Answer:
Number of produced moles of carbondioxide is 0.113 mol.
Explanation:
Excess of sulphuric acid is present.And the sodium carbonate is completely consumed.
Molar mass of sodium carbonate = 105.99g/mol
Given mass of sodium carbonate =12 g/mol
![Number\,of\,moles=\frac{Given\,mass}{Molar\,mass}](https://tex.z-dn.net/?f=Number%5C%2Cof%5C%2Cmoles%3D%5Cfrac%7BGiven%5C%2Cmass%7D%7BMolar%5C%2Cmass%7D)
![Number\,of\,moles=\frac{12}{105.99}=0.113mol](https://tex.z-dn.net/?f=Number%5C%2Cof%5C%2Cmoles%3D%5Cfrac%7B12%7D%7B105.99%7D%3D0.113mol)
one mole of sodium carbonate produce one mole of carbondioxide.
0.113 mole of sodium carbonate produce 0.113 mole of carbondioxide.
![Mass\,of\,CO_{2}produced=Moles\times Molar\,mass](https://tex.z-dn.net/?f=Mass%5C%2Cof%5C%2CCO_%7B2%7Dproduced%3DMoles%5Ctimes%20Molar%5C%2Cmass)
![=0.113\times 44g/mol=4.98g](https://tex.z-dn.net/?f=%3D0.113%5Ctimes%2044g%2Fmol%3D4.98g)
Therefore, 0.113 mol of carbondioxide produced in flask 7.