Balancing Chemical Equations Flashcards
Name some physical properties that can undergo physical change
Melting, boiling, condensation
Does change occur in the identity of a substance when the substance undergoes change in its physical properties
No change occurs in the identity of the substance, e.g ice, rain and steam are all water
What is a chemical reaction
A chemical reaction is a process in which at least one new substance is produced as a result of chemical change
How aee different subtances formed in a chemical reaction
Atoms in the reactants are rearranged to form one or more different subtances
What are reactants
Reactants are substances that take part in and undergo change during a reaction
What is broken and what is formed in a chemical reaction
Old bonds are broken, new bonds are formed
Give an example of bonds undergoing chemical reaction and forming a new bond
Fe and O2 form rust ( Fe2O3)
Ag and S form tarnish (Ag2S)
