Section 4.1- Balancing Chemical Equations Flashcards
1
Q
the chemical changes caused by collisions between atoms or molecules
A
chemical reactions
2
Q
a symbolic representation of a chemical reaction
A
chemical equation
3
Q
the symbols of the substances that react and are written on the left
A
reactants
4
Q
symbols of the substances produced in the reaction that are written on the right
A
products
5
Q
indicates that the reactants must be heated
A
delta above an arrow
6
Q
in Dalton’s atomic theory, he stated that __________ are not created or destroyed in chemical reactions, only rearranged
A
atoms
7
Q
the sum of the masses of the products is always equal to the sim of the masses of the reactants
A
law of conservation of mass
