The purpose is that it shows you all the elements we know and it arranges them in groups that are also the same kind like Chemistry.
Answer:hey did you ever get an answer? I need it for this exam
Explanation:
Explanation:
A pinhole camera, as name suggests, is a camera has no lens. is a light- proof box,small hole on 1 side, light thru one side. projects an inverted pic which is known as an abscura effect....
Answer:
Moles of BCl₃ needed = 0.089 mol
Explanation:
Given data:
Moles of BCl₃ needed = ?
Mass of HCl produced = 10.0 g
Solution:
Chemical equation:
BCl₃ + 3H₂O → 3HCl + B(OH)₃
Number of moles of HCl:
Number of moles = mass/molar mass
Number of moles = 10.0 g/ 36.46 g/mol
Number of moles = 0.27 mol
Now we will compare the moles of HCl with BCl₃.
HCl : BCl₃
3 : 1
0.27 : 1/3×0.27 = 0.089 mol
