A sample of ammonia reacts with oxygen as shown. 4NH3(g) 5O2(g) Right arrow. 4NO(g) 6H2O(g) What is the limiting reactant if 4. 0 g of NH3 react with 8. 0 g of oxygen? O2 because it produces only 0. 20 mol of NO. NH3 because it produces only 0. 20 mol of NO. O2 because it produces two times less NO than NH3. NH3 because it produces three times more NO than O2.

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.