Which headings should be used to complete this table? A 2-column table with 2 rows. Columns are labeled with question marks. Column 1: R single bonded to X; C equals F, upper C l, upper B r, or I; organic solvent. Column 2: R single bonded to N H 2; weak base, biochemical processes, foul-smelling. ether (left column); ester (right column) ketone (left column); aldehyde (right column) alkyl halide (left column); amine (right column) alcohol (left column); carboxylic acid (right column)

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.

How might this scientific phenomena be explained? a paper clip floats on water.

Select the correct answer from each drop-down menu. to make a table of the elements, dmitri mendeleev sorted the elements according to their . he then split the list of elements into several columns so that elements beside each other had similar .