16.) which of the following reactions best illustrates the law of conservation of mass?
a. h2o2 → h2o + o2
b. na + cus → na2s + 2 cu
c. k + agcl → kcl + ag
d. naoh + 2 hcl → nacl + h2o
me

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit