chemical reactions task cards

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Thank you for downloading the Chemical Reactions Task Cards. I appreciate your business. If I may ask, please take a moment of your time to provide feedback after you have used the product to help me gauge your level of satisfaction in regard to classroom usage. Specific feedback helps me to modify and/or generate products. Should you encounter technical issues, please contact me via email or the Q&A tab on my page prior to feedback as this may not be a direct result of the product itself. Additionally, please check back periodically as I usually make updates to the product either based on questions submitted, your feedback, or simply wanting to add to the product itself.

Once again, thank you for your time and business. Have a school great year! —James Lyas (Bond with James)—

The original purchaser of this document is granted permission to copy for teaching purposes for his/her class only. If you are NOT the original purchaser, please download the item from my store before making any copies. File sharing, redistributing, editing, selling, or posting this item (or any part thereof) on the Internet, or with others, is strictly prohibited without first gaining permission from me. This includes distribution across a campus, school district, or region. Violations are subject to the penalties of the Digital Millennium Copyright Act and I reserve the right of legal action. Please contact me at [email protected] if you wish to be granted special permission. © James Lyas (Bond with James), 2014.

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Idea A – Individual or Group Work Students may work individually on a concept. For example, Student A may decide to gather and work on all Concept A cards, while Student B works on the Concept B cards. Or pairs / groups can work together. For example, Students A & B work on the Concept C cards.

Idea B – Play Quiz-Quiz-Trade™ This is a Kagan activity. A video can be seen here. Each student in the class receives a card. Provide time for students to research the answer and become experts. Students pair up, quiz each other and provide support if needed. When time is called, partners switch cards and find new partners to carry out the routine.

Idea C – Create stations The teacher may create stations around the room by placing cards on lab tables, desks, or along the wall. If cards are on the wall, students walk around and work on problems; or they may work at designated station area if cards are located on a table.

The Chemical Reactions Task Cards Set comes with: (1) Color set (numbered) (2) Color set (not numbered) (3) Black and White set (numbered) (4) Black and White set (not numbered) (5) Answer Key (6) Blank editable template to design your own cards

http://www.kaganonline.com/index.php

http://www.theteachertoolkit.com/index.php/tool/quiz-quiz-trade


© JL

1981

Highly Recommend… • …printing all cards in color. • …placing a different color sticker or stamp (or other identifier) on the back of each

set prior to lamination. This will help students or teacher quickly identify sets that are accidentally mixed up.

• …using a school laminator or investing in a personal laminator in order to laminate to allow for repeated use.

For each printed set of cards, place a colored sticker (or either identifier) on the back of each card. Make sure to use a different color per set.

Laminate each set of cards for repeated use. You can purchase a small laminator from an office supply store. These machines allow 3 – 10 millimeter thick lamination which provide more protection compared to the laminators found in most schools.

Use scissors or a paper cutter to cut the cards out.

Now you can quickly identify all the cards that belong to this particular set (this helps if you make multiple sets for a class and makes it easier to sort)


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Conservation of Mass

Reaction Types

Counting Atoms



© James Lyas (Bond with James)




What type of reaction is illustrated below?

A B A B +

1 2

3 4

How do you know that a chemical equation is balanced? Hydrogen Chlorine Oxygen Nitrogen Carbon

Use the key above to write a chemical formula for the model shown below.

Write the following equation down:

H2SO4 + 2 NaNO2 2 HNO2 + Na2SO4

On your paper… • Place a box around the reactants. • Circle the products. • Underline all coefficients. • Place a triangle around all subscripts.



Reaction Types

Counting Atoms







__Al + __O2 __Al2O3

Balance the following chemical equation


+ X Y Y X

How many atoms make up the compound shown below?

Ca(NO3)2

Balance the chemical equation below by… (a) Drawing models of the reactants (similar to how the

model on the product side is shown). (b) Drawing models (as needed) on either the reactant or

product side to ensure that the equation is balanced.

__H2 + __N2

5 6

7 8



Reaction Types

Counting Atoms







Balance the following chemical equation:


Determine the number of each atom shown below:

+ X

A B +

A

X B

4 H3PO4

HI H2 + I2

You’ve just come home from school after learning about chemical equations. A family member, who is about to

make a smoothie, asks you what you learned in chemistry. Explain the concept of the Conservation of

Matter using a smoothie as an example.

9 10

11 12



Reaction Types

Counting Atoms








+ X Y


A B +

Y A

X B

3 Al2(CO3)3


Fe + O2 Fe2O3

Describe the type(s) of evidence that would indicate a double replacement

reaction has occurred.

13 14

15 16



Reaction Types

Counting Atoms









How many atoms make up the compound shown below?

MgSO4•H2O

FeS + HCl H2S + FeCl2 2HI H2 + I2

Use your cell phone (or a computer) to look up the Haber-

Bosch process. Write the equation down

and then draw your own illustration

to represent this chemical equation.

17 18

19 20



Reaction Types

Counting Atoms









Na3PO4•5 H2O

+ CH4 + O2 CO2 + H2O

Your teacher asks you to investigate the Law of Conservation of Mass. You are given the following items:

Write a procedure describing the steps you would take to investigate the Law of

Conservation. Your teacher may even allow you to conduct the experiment

based on your lab write-up. **You are not limited to the equipment listed above, however, you

must decide what equipment you will use**

21 22

23 24

• Triple beam balance • 400mL Erlenmeyer flask • Graduated cylinder

• 250mL beaker • Hot plate • Spoon

• Balloon(s) • Unlimited baking

soda and vinegar




Reaction Types

Counting Atoms









Which compound has the largest mass?

H2O or CO2

Zn + H2 S ZnS + H2 Zn + H2 S ZnS + H2

Draw an illustration representing the chemical equation shown below:

P4(s) + 5 O2(g) P4O10(s)

25 26

27 28



Reaction Types

Counting Atoms










Fe + O2 Fe2O3

H2SO4 or Fe2O3

Fe+ HCl FeCl3 + H2

Which of the following does not obey the law of conservation?

a) 1 N2 + 3 H2 2 NH3b) 2 KClO3 2 KCl + 3 O2c) 2 H2 + 1 O2 2 H2Od) 2 P + 5 O2 2 P2O5

29 30

31 32



Reaction Types

Counting Atoms









CH4 + O2 CO2 + H2O HCl + Ca(OH)2 CaCl2 + H2O

2 CuSO4•5 H2O


Convert the following word equation into a balanced chemical equation:

**Your teacher may ask that you include the states of matter**

Burning magnesium metal reacts with oxygen in the air to produce solid

magnesium oxide.

33 34

35 36


© BWJ(1981


Reaction Types

Counting Atoms







Which compound has a larger number of atoms?

Na2S2O3•5 H2O

FeCl3•6 H2O


FeS + HCl H2S + FeCl2

What type of reaction is shown below?

NaCl + H2SO4 Na2SO4 + HCl

Convert the following word equation into a balanced chemical equation:


Iron metal reacts with chlorine gas to produce solid iron (III) chloride.

37 38

39 40


© BWJ(1981


Reaction Types

Counting Atoms







Determine the number of atoms in

sodium nitrate.

Based on what you know about the Law of Conservation, how much

lead was present in lead (II) nitrate?

The diagram below shows an unbalanced chemical equation.

+ (a) Draw this diagram into your notebook. (b) Write the chemical formula for each model shown.

The lines represent chemical bonds only and are not written in a formula.

(c) Finally, balance the chemical equation.

There is an experiment where a Gummy Bear is sacrificed for the

sake of science . The first part of the experiment involves heating

potassium chlorate (shown below).

2KClO3(s) 2KCl(s) + 3O2(g)

What reaction type would this chemical equation be classified as?

+ + 205 g

Aluminum 95 g

Lead (II) nitrate 164 g

Aluminum nitrate ???g Lead

41 42

43 44


© BWJ(1981


Reaction Types

Counting Atoms







S’mores are made up of graham crackers, marshmallows, and chocolate bars. Below is model chemical equation.

4 2

+ + 1 5

How many S’mores will you be able to make if you have 200 graham crackers, 350 marshmallows, and 500

chocolate bars?

Rank the following equations from least to greatest based on the total number of atoms

involved in the chemical reaction. **Be careful**

a) C3H8 + 5 O2 3 CO2 + 4H2Ob) 2 HgO 2 Hg + O2

c) Cl2 + 2 KI 2 KCl + I2

d) 2 KI + Pb(NO3)2 PbI2 + 2 KNO3

e) 2 K + I2 2 KI

45 46

47 48

Hydrogen Chlorine Oxygen Nitrogen Carbon

Use the key above to write the chemical formulas and a balanced chemical equation based

on the reaction shown below.

+ + Classify the unbalanced chemical

reaction based on your observation of the illustration shown above.

+ +


© BWJ(1981


Reaction Types

Counting Atoms







49 50

51 52

Determine the number of oxygen atoms in calcium hydroxide.

Write a balanced chemical equation for the following word problem.


Iodine crystals react with chlorine gas to form solid

iodide trichloride.

There is an experiment where a Gummy Bear is sacrificed for the sake of science . The 2nd part of the experiment involves

tossing a Gummy Bear into molten potassium chlorate. As a result, the sugar reacts with oxygen and generates purple sparks and a

lot of heat. Balance the reaction below so that the Gummy Bear would not have died in vain.

__C6H12O6(s) + __O2(g) __CO2(g) + __H2O(g)

Determine the type of reaction for each chemical equation shown below.

a) C3H8 + 5 O2 3 CO2 + 4H2Ob) 2 HgO 2 Hg + O2

c) Cl2 + 2 KI 2 KCl + I2

d) 2 KI + Pb(NO3)2 PbI2 + 2 KNO3

e) 2 K + I2 2 KI


© BWJ(1981


Reaction Types

Counting Atoms







53 54

55 56

Determine the number of atoms in triphosphorus

dioxide.

Write a balanced chemical equation for the following word problem.


Bromine reacts with an aqueous solution of barium iodide.

Classify the chemical reaction shown above

Hydrochloric acid (HCl)

+ Magnesium chloride

+ Hydrogen gas Magnesium

ribbon

Select two of the solutions below and pretend you are going to mix these in the lab. Write a balanced

chemical equation for the resulting reaction. **Your teacher may ask that you include the states of matter**

Sodium chloride

Copper (II) sulfate

Silver nitrate

Calcium nitrate

Iron (III) chloride


Select two of the solutions below and pretend you are going to mix these in the lab. Write a balanced

chemical equation for the resulting reaction. **Your teacher may ask that you include the states of matter**

Sodium phosphate

Iron (III) chloride

Copper (I) hydroxide

Lithium nitrate

Potassium chromate

Hydrogen Chlorine Oxygen Nitrogen Iron

Use the key above to write the chemical formulas and a balanced chemical equation based

on the reaction shown below.

+ +

© BWJ(1981


Reaction Types

Counting Atoms







57 58

59 60


ammonium chromate or chromium (III)

bromide

Determine the reaction type illustrated below.

+ + Lead (II) nitrate

Potassium iodide

Potassium nitrate

Lead (II) iodide


chemical reactions task cards

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