Chem (Periodic) Review/ Kits

Unit 2: Chemistry Test Review

​Test on Friday !

Multiple choice.

25 questions

Worth 50 points.

What are the parts of the atom ?

​

• .

Some text here about the topic of discussion

Drag and Drop

The center of an atom is called the ​

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.

​ ​

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(positively charged atoms) and ​

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are found in the nucleus.

​

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rotate around the nucleus.

Drag these tiles and drop them in the correct blank above

nucleus

protons

neutrons

electrons

eletrical

Neutral

Multiple Choice

What part of an atom establishes what atom it is?

• Proton

• Neutron

• Electron

Multiple Choice

These particles orbit around the nucleus of an atom.  What are they called?

• electrons

• protons

• neutrons

• photons

Labelling

Label the atom

Drag labels to their correct position on the image

electron

Nucleus

neutron

proton

​

• .

Some text here about the topic of discussion

Labelling

Label properly.

Drag labels to their correct position on the image

Atomic Mass

Element symbol

Atomic number

Fill in the Blanks

Fill in the Blanks

Multiple Choice

This atom has 8 electrons surrounding its nucleus:

Multiple Choice

This atom often has 5 neutrons in its nucleus. (HINT: Remember to subtract!)

Grab Kit #1 before you continue.

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Return Kit #1 before you continue.

Drag and Drop

The atomic number is equal to the number of electrons and ​

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.



The atomic mass is the number of protons and ​ ​

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.

Drag these tiles and drop them in the correct blank above

electrons

nucleus

protons

neutrons

• Know the difference between periods and groups.

• How is the periodic table organized?

​

• .

Some text here about the topic of discussion

Hotspot

Which point represents a period?

Hotspot

Which point represents a group?

Get Kit #2 before you continue.

Hotspot

Which group has similar properties to Si?

Hotspot

Which group has similar properties to K?

Return Kit #2 before you continue.

Multiple Choice

Which elements are colored red?

• nonmetals

• metals

• metalloids

Multiple Choice

Most of the elements on the periodic table are classified as _____.

• Metals

• Nonmetals

• Metalloids

• Periods

Multiple Choice

A substance that is solid, hard, and a conductor would be classified as a

• metal

• nonnmetal

• metalloid

Multiple Choice

A substance that is dull, brittle, and a nonconductor would be classified as a

• metal

• nonnmetal

• metalloid

Multiple Choice

Which of these grouping of elements could have the characteristic of luster (shiny)?

• Metal

• Nonmetal

• metalloids

• Both metals and metalloids

Get Kit #3 before you continue.

Open Ended

State whether if it is a metal, non-metal, or metalloid.

Name 2 physical properties.

Return Kit #3 before you continue.

Multiple Choice

The elements classified on the stair case are called . . .

• Metals

• Nonmetals

• Metalloids

• Periods

Some text here about the topic of discussion

Multiple Choice

To separate the sugar and lemonade what method should you use?

• filtration 

• sorting

• magnet

• boiling

Multiple Choice

Elements and compounds are always ___.

• pure

• mixed

Multiple Choice

Which list is made of pure substances?

• soil, salt water, soup

• carbon dioxide, soil, soup

• salt, water, helium

• atoms, cereal, pizza

Multiple Choice

In which mixture can you see all of the parts?

• homogeneous

• heterogeneous

Multiple Choice

In which mixture can you not see all of the parts?

• homogeneous

• heterogeneous

Get Kit #4 before you continue.

Open Ended

A. Is the mixture heterogenous or homogenous? How do you know?

B. Is it a pure substance? Why or why not?

(2 solid sentences)

Drag and Drop

Pure substances are classifie​d as elements or ​

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. Mixtures are classified as homogenous or ​

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. Compounds can be separated ​

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and mixtures can be separated ​

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.

Drag these tiles and drop them in the correct blank above

compounds

heterogenous

chemically

physically

Labelling

Label the picture properly.

Drag labels to their correct position on the image

Mixture

Compound

Element

Match

Match the following

• Element

• Compound

• Homogenous Mixture

• Heterogenous Mixture

• Pure substance

1 atom

2 or more elements

Evenly mixed

Unevenly mixed

Element & Compound

• 1 atom

• 2 or more elements

• Evenly mixed

• Unevenly mixed

• Element & Compound

Acids and Bases

Each capital letter represents an element.

Some text here about the topic of discussion

Multiple Choice

Acids taste . . .

• Sour

• Bitter

• Salty

• Soggy

Multiple Choice

Bases taste . . .

• Sour

• Bitter

• Salty

• Soggy

Get Kit #5 before you continue.

Hotspot

Test substance #1. Where is it in the pH scale?

Hotspot

Test substance #2. Where is it in the pH scale?

Hotspot

Test substance #3. Where is it in the pH scale?

Return Kit #5 before you continue.

Multiple Choice

Drain cleaner has a pH of 13. What is drain cleaner?

• An acid.

• A strong base.

• Neutral.

• A weak base.

Multiple Choice

What is the pH of a solution that results from the complete neutralization of an HCl solution with a KOH solution?

• 1

• 7

• 10

• 4

​Matter CANNOT be created nor deystroyed

Each capital letter represents an element.

Some text here about the topic of discussion

Multiple Choice

Can matter be created or destroyed?

• Yes, it can be created.

• Yes, it can be destroyed.

• No, matter is always conserved

• None of these

Multiple Choice

If 20g of sugar is stirred into a beaker containing 100g of water. What would the mass of the dissolved solution be after the sugar is dissolved fully?

• 20g

• 100g

• 80g

• 120g

Drag and Drop

Remember the law of conservation of mass. Mass ​

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be destroyed or ​

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. Matter is ​

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.

Drag these tiles and drop them in the correct blank above

cannot

can

created

transformed

same

Get Kit #6 before you continue.

Open Ended

Using the materials from the kit,

1. Measure the mass initially of the unfolded piece of foil.

2. Change the foil physically

3. Remeasure the mass.

4. Type the mass below.

Open Ended

How does this experiment follow the law of conservation of mass?

(Use the words physical or chemical change in your explanation)

1 solid sentence

Return Kit #6 before you continue.

Categorize

Options (4)

Organize each of the following.

Conserved

Not Convserved

​Density

​Remember:

​

• ​How to calculate Density= M/V

• ​Object floats if density is less than 1g/ml

• ​Object sinks if density is more than 1g/ml

Some text here about the topic of discussion

Match

Match the following

• Mass

• Volume

• Weight

• Density

Amount of matter in an object

Amount of space an object takes up

Force of gravity on an object

Ratio: Mass divided by Volume

• Amount of matter in an object

• Amount of space an object takes up

• Force of gravity on an object

• Ratio: Mass divided by Volume

Multiple Choice

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Multiple Choice

If an object has a density of 0.6 g/mL and you put it into water, will it sink or float?  

• sink
• float

Multiple Choice

If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?  

• sink
• float

Reorder

Put the liquids in order from LEAST dense to MOST dense.

• Oil

• Water

• Milk

• Honey

1

2

3

4

• 1
• 2
• 3
• 4

Grab Kit #7 before you continue.

Return Kit #7 before you continue.

Independent
Dependent
Control Variables

Match

Harry and Ron are testing Harry’s hypothesis that the invisibility cloak does not work on cats.  Harry has always thought that Mrs. Norris can see him even with the cloak on.  He and Ron hypothesize that it’s because cats can see in the dark.  Harry is putting the cloak on at the same time of day and walking through Hogsmead and Ron is counting how many cats are reacting to Harry in the cloak.

• Independent

  Variable

• Dependent

  Variable

• Control Variable

Counting the cats

Reaction of cats

Same time of day

• Counting the cats

• Reaction of cats

• Same time of day

Match

Hagrid is attempting to determine the best food for the flobberworms.  He had his students recording the length and weight of the worms on a daily basis.  All flobberworms are given 10g of food daily and 5g of water.  He has determined the flobberworm who was fed pumpkins has grown the most and the one who was fed the lettuce grew the least. 

• Independent

  Variable

• Dependent

  Variable

• Control Variable

type of food

length & weight of flobberworms

amount of food & water

• type of food

• length & weight of flobberworms

• amount of food & water