QoD
1. Al2(SO4)3(aq) + Ca(NO3)2(aq) -- > Al(NO3)3(aq) + CaSO4(p)
Does this obey the law of conservation?
Identify a reactant, product, coefficient and subscript
What does the ‘(p)’ mean?
How many oxygen atoms are on the product side?
2. How can you tell if a chemical change occurred?
Breakout Peardeck
Matter and its Changes Review
States of matter
1. The state(s) of matter in which particles are touching
and therefor cannot be compressed is/are ___________
5. The state(s) of matter in which particles can be
compressed is/are ___________
2. The state(s) of matter in which particles are in a fixed
position and vibrating is/are _________________
6. The state(s) of matter in which particles take the
shape of its/their container is/are ___________
3. The state(s) of matter in which particles have a
definite shape is/are _________________
7. Convert 400 cm to m:
4. The state(s) of matter in which particles have enough
energy to flow is/are _________________
The first digit of the code is the number of gasses, the second digits is the number of liquids, the third digit is the number of
solids, and the fourth digit is the answer from #7. __ __ __ __
Properties of matter
1. Identify the following properties as (P)hysical or
(C)hemical:
3. Identify the following CHANGES as (P)hysical or
(C)hemical:
__ Color
__ Flammable
__ Volume
__ cutting paper __ dissolving sugar__ corroding
__ Density
__ Mass
__ Digestible
__ rusting
2. Identify the following properties as (I)ntesive or
(E)tensive:
__ Color
__ Flammable
__ Volume
__ Density
__ Mass
__ Digestible
__ melting
__ boiling
4. What is the density of an object whose mass is 4g and
volume is 2mL?
The code is the number if P’s from #1, the number of E’s from #2, the number of C’s from #3, the answer from #4, followed
by the color found in the first box. __ __ __ __ __
Matter – Mixtures vs Pure substances
1. Matter is anything with _______ and volume.
4. A mixture is two or more pure substances _________
combined.
2. Pure substances can either be an _________ or
coumpound
3. Classify the following as an (E)lement or (C)ompound:
__ H2
__ H2O
__ O2
__ CO2
__ Au
__ Na
The first digit of the code is the first letter from #1, the
second digit is the first letter from #2’s first answer, the
third digit whichever has E or C from #3, the fourth digit
is the firs letter of the answer from #4, and the fifth digit
is color from the second box. __ __ __ __ __
Matter – Mixtures
1.
Mixtures and be classified as homogeneous or
heterogeneous based on the number of
_____________
4. State the number of phases seen here:
1 = star
2= triangle
2.
A phase is a region of ____________ composition in
a mixture.
3= arrow
4 = circle
5 = square
3.
Classify the mixtures as Ho(m)ogeneous or
He(t)erogeneous:
__ Kool aid
__ Chicken Soup
__ Spaghetti
__ Salt water
__ Oil and water
__ Salad
The first digit of the code is the first letter from #1, the
second digit is the first letter from #2, the third digit is
the whichever has more from #3 (t or m), the fourth digit
is the answer from #4, and the fifth digit is letter from
the fourth box.
Matter – Chemical Changes
1.
A chemical change differs from a physical change
because a chemical change produces matter with a
different _____________ than what was started
with.
4. NaOH + Cu(NO3)2 --> NaNO3 + Cu(OH)2
How many Oxygens are on the reactant side of the
reaction?
3 = triangle 4 =r. arrow 5= square 6 = l. arrow 7= square
2.
3.
What are the evidences that a chemical change
occurred?
NaOH + Cu(NO3)2 --> NaNO3 + Cu(OH)2
Does the reaction obey the law of conservation?
If yes, the digit is triangle. If no the digit is circle
The first digit of the code is the first letter from #1, the
second digit is the number of evidences from #2, the
third digit is answer from #3, the fourth digit is the
answer from #4, and the fifth digit is shape from the
fourth box. __ __ __ __ ___