If light travels 300,000 km per second, how long does it take to travel one foot (which is 0.3048 meters)? Use a metric prefix, not an exponent.

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?