Calculate the pH when 20.0 mL of 0.150 M KOH is mixed with 26.0 mL of 0.300 M HBrO (Ka = 2.5 × 10⁻⁹)

List four observations that indicate that a chemical reaction may be taking place

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

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.