phys/chem changes
Is breaking a glass bottle a physical or chemical change?
physical change
what is an element?
a substance that can not be broken down into simpler substances
is chopping wood a physical or chemical change?
physical change
what is a neutron?
a neutron is a subatomic particle that has no charge and is found in the nucleus of an atom
is chewing food a physical or chemical change?
physical and chemical
what is an electron?
an electron is a subatomic particle that has a negative charge
is burning wood a physical or chemical change?
chemical change
what is an atom?
an atom is the basic unit of a chemical element in a neutral atom
is souring milk a chemical or physical change?
what is a chemical symbol?
a chemical symbol is a one or two-letter representation of an element