Matter
What is matter?
Matter is anything that takes up space and has mass
What does it mean to say that mass is conserved in a chemical reaction?
the total mass of the reactants (starting materials) in a chemical reaction will always be equal to the total mass of the products (resulting substances) produced
how does matter behave?
Can you explain how mass is conserved during a chemical reaction?
because the atoms involved in the reaction are simply rearranged to form new substances
What are the states of matter?
Matter can exist in three states: solid, liquid, and gas.
If you have a block of ice and it melts into water, does the total mass change? Why or why not?
No, the total mass of a block of ice does not change when it melts into water
How do matter states change?
when it gains or loses energy, usually in the form of heat
How can you use a balance scale to verify the Law of Conservation of Mass in a simple experiment?
measure the mass of reactants before a chemical reaction occurs, then measure the mass of the products after the reaction is complete
a chemical change alters the composition of a substance, creating a new substance with different properties, while a physical change only alters the appearance or state of a substance without changing its chemical identity.
How does the Law of Conservation of Mass relate to recycling?
it states that matter cannot be created or destroyed, only transformed