Name
Pd
Date
Chemistry Unit 7
More practice in writing and balancing equations
Write balanced chemical equations for the following reactions.
1. Zinc reacts with hydrogen chloride to form zinc chloride.
Zn +
2 HCl
ZnCl2 +
H2
2. Sodium oxide reacts with wa
Slope:
rise/run
change in y/change in x
y2 - y1/ x2 -x1
linear function:
y=mx+b
m is the slope
b is the vertical intercept
exponential function:
P=Poa^t
Po = initial quantity
a = the factor by which P changes when t increases by 1
continuous exponential f
Name,_I<:_f+->,_ _
Date
P d_
UNIT II Worksheet 1
1. Consider the position vs. time graph below for cyclists A and B.
A
B
,
I
J
I
c. Which cyclist is travelling faster at t = 3s? How do you know?
A
-7'
,\.,.c. .b4'" c: t fe.
d. Are their velocities equal a
Mass
:
Weight on Earth
Speed
Velocity
Acceleration
Velocity
Inertia
Mass (kg) x 10 N
Distance / time
Speed with direction
Change of velocity / time
Acceleration x time
If velocity is a constant, acceleration 0
=
Acceleration is constant = 10 m/s/s (on
Fre
Name
Date
Pd
Chemistry Unit 7 Worksheet 4
Samples of Every Kind of Problem
On a separate sheet of paper, write a complete solution to each of the problems
below. Follow the procedure outlined in class. Be sure to circle your final answer.
1. Calculate the