The Moon shines white light on Earth. Is the Moon a good blackbody radiator? Why?
A. Yes, because the light from the Moon comes from the Sun, which
is a blackbody radiator
B. No, because white light is only one wavelength of light, not a range
of wavelengths
C. Yes, because each night the Moon warms up enough to emit
visible light at a range of wavelengths
D. No, because the Moon reflects most of the Sun's light rather than
absorbing it

confused

confused             hewdejdnjnjsnd

16

explanation:

the marks go by 4s

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o

4d^55s^1 ( third choice)