Answer:
0.98 g of H₂
Explanation:
the balanced equation for the reaction is
Mg + 2HCl ---> MgCl₂ + H₂
molar ratio of Mg to H₂ is 1:1
number of Mg moles reacted = 12 g/ 24.3 g/mol = 0.49 mol
according to molar ratio
when 1 mol of Mg reacts 1 mol of H₂ is formed
therefore when 0.49 mol of Mg reacts - 0.49 mol of H₂ forms
therefore mass of H₂ formed = 0.49 mol x 2 g/mol = 0.98 g
mass of H₂ formed is 0.98 g
A.<span>.Glucose and carbon dioxide</span>
They are not closely packed or arranged orderly.
Hope this helps!
An atom is the smallest thing ever known to exist. It can only be seen by the eye of a type of telescope.
The missing isotope in the equation is going to have the atomic mass and atomic number as the difference between the numbers of the other isotopes mass and atomic number respectively.
atomic mass 210-206= 4
atomic number 84-82= 2
the symbol has to correspond to the element with the atomic number. In this case 2 = He
