Answer:
d.) Microwave photons cause the molecules to increase their rotational energy states, whereas infrared photons cause electrons in the molecules to increase their electronic energy states.
Explanation:
Microwave: transitions in the molecular rotational levels
Infrared: transitions in molecular vibrational levels
UV/Visible: transitions in electronic energy levels.
The two elements occur in nature as liquids are bromine and mercury.
Answer:
A. Single
Explanation:
saturated hydrocarbons, contain only single covalent bonds between carbon atoms.
The speed of light is (2.998x108/3.00x109) meters per second = 300,000 kilometers per second.
