Lightning Unit
The material that is the best conductor of electricity
Metal
H2O is held together by this type of bond
Covalent
The atomic mass of an element is determined by these 2 subatomic particles
protons and neutrons
Wood burning is an example of a ________change
chemical
During a phase change, this remains constant
Temperature
Resists the flow of electrical charge
Insulators
Water molecules are polar because oxygen is more________
electronegative
The atomic number of an element represents the number of _______
Protons
During a chemical reaction, atoms are ________
rearranged
When a substance changes from liquid to gas, the kinetic energy of its particles ______
increase
The charge of an atom when it loses an electron
Positive ion
Surface tension is a result of this property of water
Cohesion
The outer electron shell involved in chemical bonding
When an acid and base react together, water and ______are produced.
Salt
The best description of the movement of particles in a solid is ______around fixed particles
vibration
Sodium and Chlorine form this type of bond
Ionic
This property causes water molecules stick to other substances
Adhesion
The smallest unit of an element that maintains its chemical properties
An atom
All bases produce this compound in aqueous solutions
OH- ions
a state of matter that has a definite volume but no fixed shape
liquid
Rubbing a balloon on your hair and sticking it to the wall causes the wall to become________
Polarized
This property of water allows it to dissolve salt
Polarity
The space where an electron is most likely to be found
An orbital
the reaction HCl + NaOH → NaCl + H₂O is an example of this type of reaction.
Neutralization
This type of force determines the phase of matter at room temperature
Intermolecular