How many moles of hci are formed from 3.5 moles of h2 and 3.5 moles of cl2?
a 5
b 7
c 1
d 2
e 0.5

First, we need a reaction formula. 

H₂ + Cl₂ --> 2HCl

as the equation tells you, for every mole of each one of the reactants (H2 and Cl2) is twice for HCl (because of the coefficient)

3.5 x 2= 7 (answer is B)

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy

Answercanyon;