Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be removed. these objects include form cups, keys, and coins. which of the following explains useful method for removing some of these objects? A. the keys and coins are less dense than water, so they can be easily picked up off the bottom of the pool divers
B. the foam cups are less dense than water, so they can be crumbled up for removal by the pool filter
C. The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning met
D. the keys are coins have the same density as water ,sothey can be washed away when the pool is drained

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘

If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml

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.