How many grams of hydrogen (H2) form in this reaction, according to this balanced equation? 2A1. + 6HCl -> 2AlCl3 + 3h2
53.96 g 218.76 g 266.66 g ?
A. 101.86 grams
B. 6.06 grams
C. 2.02 grams
D. 539.38 grams

B = 6.06 g

Explanation:

Chemical equation:

2Al + 6HCl     →     2AlCl₃ + 3H₂

In given balance chemical equation there are 3 moles of hydrogen are formed.

Mass of hydrogen in gram:

Formula:

Number of moles = mass/molar mass

Mass = number of moles × molar mass

Molar mass of hydrogen = 1.008×2 = 2.016 g/mol

Mass = 2.016 g/mol× 3 mol

Mass = 6.05 g

It is almost equal to 6.06 g thus option B is correct.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.