Outcome 4A: Models of ionic and molecular compounds

Outcome 4B: Word equations and types of reactions

Outcome 4C: Balancing simple chemical reactions

100Which model represents trioxygen monofluoride?

A

Write the word equation for this chemical reaction:

O2 + ClO3ClO5

O

oxygen gas + chlorinetrioxide pentaoxide

Which of the following is a replacement reaction?

BWrite the chemical formulafor the structure shown below

4H

100 100 100 100 100

200Which of the following modelsrepresents sulfur tetraoxide?

-How many elements are in the following compound?-How many atoms are inthe following compound?-What state of matter isthe compound in?MgC2H3OH(s)

The following is a combustion reaction. Fill in the question mark (you do nothave to balance)CH3H + ? CO2 + H2O

O or OA chemical reaction is shown with all the –reactants- on the left hand side of an arrow and all the –products- on the right hand side

? ?

A chemical reaction is shown with all the –hand side of an arrow and all the –on the right hand side

1

Give the chemical formulasfor hydrochloric acid and ammonia

HClNH

1

Fossil fuels (gasoline, oil, propane, coal, methane) will all undergo combustion. Which element do fossil fuels contain that burns and what gas will be produced as a result?

Carbon (C)Carbon dioxide gas ( CO

200 200 200 200 200

300 Which of the formula(s) could match the model below if You are not basing the matching on size or color of atoms?

CuB5, OOH3B2, H6Li, I7

Write the word equationfor this chemical reaction: Cr + Cl CrCl3

Cr + Cl chromium + chlorine

Write the word equation for this chemical reaction:

CH + N3H4 N3H5

CHcarbon monohydride + trinitrogen tetrahydride trinitrogen pentahydride

(remember: hydrogen is theone element to the left of thethick black line in the periodictable that is a non-metal. That makes all the compounds abovemolecular

Give the chemical formulasfor sodium hydroxide and methane

NaOHCH

300 300 300 300 300

400Fill in the subscripts below to properly identify the molecular compound above on the right. What state of matter will the compound be found in?

P S Cl (aq)

Below is a chemical equation, and below it is the word equation for it.Identify how many mistake(s) (if any) are in the word equation

Li(s) + BeO(s) Li2O(s) + Be(s)

lithium + beryllium oxygen dilithium dioxide + beryllium

Lilithium + beryllium oxygen

There are

-BeO should be named beryllium oxide (there has be “ide” atthe end-Liionic compound, the lithium doesn’t need a prefix in front ofit. Also, the oxide shouldn’t have any prefix in front of iteither.)

Give the balanced chemical equation and show the model for nitrogen gas and hydrogen gas combining to form ammonia (NH3)

400 400 400 400 400

500 Match the compounds with the model that represents them a)lithium oxide b)oxygen difluoride c)nitrogen gas d)beryllium oxide

Match the compounds with the model that represents them a)lithium oxide b)oxygen difluoride c)nitrogen gas d)beryllium oxide

Which of the reactions below are corrosion reactions (do not worryabout making sure they are balanced)a) O2 + Al Al2O3

b) C + O2 CO2

c) Mg + O MgOd) Be + S BeS

-a and c are corrosionreactions

- b is a combustionreaction.-d doesn’t have oxygen as a reactant

I. A chemical burning to produce heat and CO2II. A chemical with the formula OOCO is burned and heat is given off.III. Gasoline is burnedIV. A chemical called CPS is burned and heat is producedHow many reactions are exothermicWhich of the above reactionsprovides the least evidence thatit was a combustion reaction involvingcarbon?

I:II: carbon, heat is producedIII:combustion reactionsIV.(heat) is present. The chemical what the chemical therefore there is no evidence it contained carbon.

Give the balanced chemical equation and show the model for two chlorine gas and two hydrogen gas moleculescombining into hydrochloric acid

500 500 500 500 500

Outcome 4A: Models of ionic and molecular compounds

Outcome 4B: Word equations and types of reactions

Outcome 4C: Balancing simple chemical reactions

100Which model represents trioxygen monofluoride?

A

Write the word equation for this chemical reaction:

O2

O2(g) + ClO3(s)ClO5(g)

oxygen gas + chlorinetrioxide chlorinepentaoxide

Which of the following is a replacement reaction?

B Give the chemical formulasfor hydrochloric acid and ammonia

HClNH3

1

100 100 100 100 100

200Which of the following modelsrepresents sulfur tetraoxide?

B -How many elements are in the following compound?-How many atoms are inthe following compound?-What state of matter isthe compound in?MgC

4 elements8 atomssolid

The following is a combustion reaction. Fill in the question markCH

O or O2 A chemical reaction is shown with all the –reactantshand side of an arrow and all the –on the right hand side

A chemical reaction is shown with all the –reactants- on the left hand side of an arrow and all the –products- on the right hand side

? ?1

Give the chemical formulasfor sodium hydroxide and methane

NaOHCH4

Fossil fuels propane, coal, methane) undergoelement do fossil fuels contain that burns and what gas will be produced as a result?

Carbon (C)Carbon dioxide gas ( CO2(g) )

200 200 200 200 200

300 Which of the formula(s) could match the model below if You are not basing the matching on size or color of atoms?

CuB

The last 3 (OOH3B2, H6Li, I7) because they each have 7 atoms

Write the word equationfor this chemical reactionCr + Cl

Cr + Cl CrCl3

chromium + chlorine chromium (III) chloride

Write the word equation for this chemical reaction:

CH

CH + N3H4 N3H5carbon monohydride + trinitrogen tetrahydride trinitrogen pentahydride

(remember: hydrogen is theone element to the left of thethick black line in the periodictable that is a non-metal. That makes all the compounds abovemolecular compounds)

Write the chemical formulafor the molecule shown below

4H20

300 300 300 300 300

400Fill in the subscripts below to properly identify the molecular compound above on the right. What state of matter will the compound be found in?

P

Fill in the subscripts below to properly identify the compound above on the right.

P5S4Cl3(aq) “aq” means it is dissolved in water Below is a chemical equation, and below it is the word equation for it.Identify how many mistake(s) (if any) are in the word equation

Li(slithium + beryllium oxygen

Li(s) + BeO(s) Li2O(s) + Be(s)

lithium + beryllium oxygen dilithium dioxide + beryllium

There are 3 mistakes:

-BeO should be named beryllium oxide (there has be “ide” atthe end-Li2O should be named lithium oxide (because Li2O is anionic compound, the lithium doesn’t need a prefix in front ofit. Also, the oxide shouldn’t have any prefix in front of iteither.)

Give the chemical equationand show the model for nitrogengas and hydrogen gas combiningto form ammonia (

N2 + 3H2 2NH3

400 400 400 400 400

500 Match the compounds with the model that represents them a)lithium oxide b)oxygen difluoride c)nitrogen gas d)beryllium oxide

Match the compounds with the model that represents them Li2O OF2 N2 BeOa)lithium oxide b)oxygen difluoride c)nitrogen gas d)beryllium oxide

Which of the reactions below are corrosion reactions?e)f)g)h)

-a and c are corrosionreactions

- b is a combustionreaction.-d doesn’t have oxygen as a reactant

I. A chemical burning to produce heat and COII. A chemical with the formula OOCO is burned and heat is given off.III. Gasoline is burnedIV. A chemical called CPS is burned and heat is producedHow many reaction are exothermicWhich of the above reactionsprovides the it was a combustion reaction involvingcarbon?

All are exothermicAnswer is IV: Here’s why:I: heat and CO2 given offII: chemical formula has carbon, heat is producedIII: All fossil fuels burning arecombustion reactionsIV. Only 1 piece of evidence (heat) is present. The chemical name is CPS. You don’t know what the chemical formula is therefore there is no evidence it contained carbon.

Give the chemical equationand show the model for two chlorine gas and two hydrogengas molecules combininginto hydrochloric acid

2Cl2 + 2H2 .4HCl

500 500 500 500 500