Transcript 10/21/15 PPT Quiz

Fun Quiz
1. A change in which one or more
substances is converted into a new
substance is called:
#2
New substances produced by a chemical
reaction are called:
A. Reactants
B. Products
C. Coefficients
D. Stuff
#3
______________ is a way to describe a
chemical reaction using formulas and
symbols.
A. Synthesis
B. A physical law
C. The Law of Conservation of Matter
D. A Chemical Equation
#4
As a result of the Law of Conservation of Mass,
you know that:
A. Matter can be created and destroyed but does
not change forms
B. In a chemical reaction, efforts should be made
to conserve rare elements
C. In a chemical reaction, matter is not created or
destroyed, but remains conserved.
D. In a chemical reaction, the final mass is always
greater than the starting mass of the reactants.
#5
The starting substances in a chemical
reaction are called the:
•
•
•
•
A. Reactants
B. Products
C. Coefficients
D. Precipitates
#6
This is the formula for photosynthesis. Is it a
balanced equation?
• CO2 + H2O ---------- C6H12O6 + O2
#7
What does the arrow in a chemical equation
mean?
• A. Yields/Produces
• B. Equals
• C. Helps
• D. Sums
#8
True or False:
• Chemical Reactions will produce new
substances which have different physical
properties than the original reactants.