A student had 50.0 grams of frozen alcohol and placed it in a beaker on a hot plate. The
student noted that for the first two minutes, the temperature of the alcohol in the beaker did
not change. By the end of the two minutes most of the alcohol was in the liquid state. Explain
how this could happen using the concepts of temperature, kinetic energy, and potential
energy.

This line graph compares the growth of plants that were kept in the sun for different amounts of time.a)  on day 7, the plants kept in the sun for 3 hours were how tall? b)  on day 7, the plants kept in the sun for 6 hours were how tall? c)    on day 10, the plants kept in the sun for 9 hours were how tall? d)  on day 11, the plant that was grown with 1 hour of sunlight was how tall? e)  based on the graph, the plant grows best in what amount of sunlight?

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine