Amanda places her water bottle in the freezer to cool down the water. She leaves it for an hour. Upon returning, she finds the water has frozen. Which of the following occurred in Amanda’s water bottle that caused the liquid to become a solid?

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity

Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5