Which type of molecule is shown below? O A. Alkyne
O B. Alkane
C. Alkene
O D. Aromatic

Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma

Concentrations expressed as a percent by mass are useful when the solute is a a. liquid b. gas c. solid

Give a real-world example of an energy transformation that uses two of the following forms of energy: chemical, mechanical, nuclear, gravitational, radiant, electrical, thermal (heat), and/or sound.