Predict the geometries of the following ions. (Type the numbers corresponding to the correct geometry in the boxes next to the formula.) Electron Domain Molecular 1 bent 2 linear 3 octahedral 4 seesaw-shaped 5 square planar 6 square pyramidal 7 tetrahedral 8 trigonal bipyramidal 9 trigonal planar 10 trigonal pyramidal 11 T-shaped (a) NH4+ (b) NH2− (c) CO32− (d) ICl2−

An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.

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.

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars