A. You have a badly tarnished silver teapot. The tarnish is a result of the silver metal reacting with the oxygen in the air according to 4Ag(s)+O2(g)→2Ag2O(s),ΔH=−62.2kJ/mo l
You carefully clean the teapot and then, out of curiosity, you weigh it. The teapot has a mass of 953 g . After some more measuring and calculating, you also determine that 10.5 % of the silver is on the surface and exposed to the air. If the teapot were once again to become completely tarnished, how much mass Δm is converted to energy?
B. Cobalt-60 is a radioactive isotope that is commonly used for cancer radiation therapy. The cobalt-60 atom decays to the stable nickel-60 atom, releasing a beta particle (electron) and energy in the form of gamma rays:
60Co→60Ni+β+γ
If you captured the energy from the decay of a 0.520 g pellet of isotopically pure cobalt-60, how long could you run a 30.0 Wlight bulb?
The relevant masses are as follows:
Substance Mass (g/mol)
60Co 59.933819
60Ni 59.930788
β 0.000549

no, i was listening to water by schoolboy q while and i saw this question

explenation:

water isn't wet. wetness is a description of our experience of water; what happens to us when we come into contact with water in such a way that it impinges on our state of being. we, or our possessions, 'get wet'. a less impinging sense experience of water is that it is cold or warm, while visual experience tells us that it is green or blue or muddy or fast-flowing. we learn by experience that a sensation of wetness is associated with water: 'there must be a leak/i must have sat in something.'

put the answers   and i could answer.

2b2t

explanation:

2b2t

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .