Chemical Building Blocks

1
Jeopardy

• Chemical Building Blocks
• Chapter 1 Review

2
Describing matter
Measuring matter
Phys/Chem
Mystery!
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Compoundchemically combined, specific ratio, new
properties Mixtures not chemically combined, no
specific ratio, keep old properties
Name a difference between a compound and a
mixture

• Row 1, Col 1

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mass
Density _______ / volume

• 1,2

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Chemical chemical change
Burning sugar

• 1,3

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Still made up of the same materials, just in a
different chemical pattern
Why is a change in state not a chemical change?

• 1,4

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Heterogeneous unevenly distributed ex
salad Homogeneous evenly distributed ex
koolaid
Difference between heterogeneous And homogeneous
mixtures? Examples of each.

• 2,1

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Tin
A piece of metal has a volume of 38cm3 and a
mass of 277g. Calculate the density of the
metal, and identify it based on the
information below. Iron 7.9g/cm3 Lead
11.3 g/cm3 Tin 7.3 g/cm3 Zinc 7.1 g/cm3

• 2,2

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Physical can get salt back out
Dissolving salt in water

• 2,3

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Endothermic heat enters (feels cold) Exothermic
heat exits (feels warm)
Difference between endothermic and exothermic
reactions. Examples of each.

• 2,4

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Just chopping pieces really small, not creating
new substances
Explain why making a smoothie is a physical
change

• 3,1

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Displacement of water lengthXwidthXheight
Two ways to find volume

• 3,2

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Chemical gas formation
Dissolving alka seltzer in water

• 3,3

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New substance formed, fizzing, color change,
temperature change, tastes different, gas
formation, change in smell, heat is being used
(sometimes)
3 indicators that a chemical reaction has taken
place

• 3,4

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Chemical bond
What is a force of attraction between two atoms?

• 4,1

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Mass is measure of matter, weight is force of
gravity pushing on matter
Difference between mass and weight?

• 4,2

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Chemical - bubbling
Chalk and vinegar

• 4,3

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Cut, crumble, shred
How can you create a physical change with a
piece of paper

• 4,4

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If the water evaporates it will leave the salt
behind
Why is it correct to say that sea water is a
mixture?

• 5,1

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1.74 g/cm3
A piece of magnesium metal has a mass of 56.5g
and a volume of 32.5cm3. What is the density
of the magnesium?

• 5,2

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Chemical solid formed
Vinegar with milk

• 5,3

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Mass is never lost or gained, just rearranged
What is the law of conservation of mass?

• 5,4