La trecerea curentului electric prin apa acidulata, are loc reactia de descompunere a acesteia : ...H2O→H2↑+ O2↑
a)Scrie coeficientii stoechiometrici ai ecuatiei reactiei de descompunere a a apei.
b) Calculeaza volumul gazelor rezultate la descompunerea a 540 g de apa. Volumele sunt masurate in conditii normale de temperatura si presiune

they are made of gases.

they have a spherical shape.

they make energy through fusion.

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.

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b