Which of the following is not a reason that carbon is the basis of organic chemistry? question 3 options:
a. carbon can bond with other carbon atoms to make long molecules
b. carbon can form up to 4 bonds
c. carbon atoms bonding together are capable of making very complex molecules
d. carbon can bond with hydrogen
answer : the density of metal is, 2.7 g/ml
solution : given,
mass of metal = 4.86 g
volume of initial water = 15.5 ml
volume of rose water = 17.3 ml
first we have to calculate the volume of metal.
volume of metal = volume of rose water - volume of initial water
volume of metal = 17.3 - 15.5 = 1.8 ml
now we have to calculate the density of metal.
formula used :
now put all the given values in this formula, we get the density of metal.
therefore, the density of metal is, 2.7 g/ml
your answer should be d. about 4 years. hope this ! =^-^=
(the light reflected from the surface of the moon takes only a second to reach earth. the sun is more than 8 light-minutes away. and so, if the light from the nearest star (alpha centauri) takes more than 4 years to reach us, we're seeing that star 4 years in the past.) quora.com