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