HELP HELP HLPPP Use the table to answer the question.

Substance Melting Point (°C) Boiling Point (°C)
silicon 1,410
1
,
410
2,355
2
,
355
helium −272.2
−
272.2
−268.9
−
268.9
mercury −38.8
−
38.8
356.6
356.6
methane −182.4
−
182.4
−161.5
−
161.5
Which substance shown has the greatest kinetic energy at room temperature (~25°C)?

(1 point)

mercury
mercury

silicon
silicon

helium
helium

methane

the answers for the Kinetic Molecular Theory Quick Check are

1. the energy an object has because of its motion, 2. solid, liquid, gas, 3. the measure of the average kinetic energy of particles in an object due to motion, 4. solid, 5. helium

Explanation:

I promise these are right I just took the quick check

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.