For a research project on time management, Yuri needs to calculate how many hours the average high school student spends in school each year.

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.