Which statements are true about electrolysis? Check all that apply. Electrolysis requires an acid be present.

Electrolysis is described by two half-reactions.

Electrolysis is not an industrial process.

Electrolysis results in commercially valuable products.

Electrolysis involves the transfer of electrons.

Reduction results in the loss of electrons.

Oxidation results in the loss of electrons.

True

Electrolysis is described by two half-reactions.  

Electrolysis results in commercially valuable products.  

Electrolysis involves the transfer of electrons.  

False

Electrolysis requires an acid to be present. For example, you can electrolyze molten NaCl.

Electrolysis is not an industrial process. For example, many metals are purified by electrolysis.

Reduction results in the loss of electrons. The Gain of Electrons is Reduction.

Oxidation results in the loss of electrons. The Loss of Electrons is Oxidation.

Explanation:

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j

14 days is the half-life of phosphorus-32