Concept Check
Naming & Writing Ionic Compounds
Naming & Writing Molecular Compounds
Chemical Reactions
Writing & Balancing Chemical Equations
100
What is a chemical reaction?
A change in matter that produces new substances with new properties.
100
Name the following compound: LiF. Why is it an ionic compound?
Lithium Fluoride It is an ionic compound because the first part of the name is a metal ion whereas the second part of the name is a non-metal ion.
100
Name the following compound: SiO(2). Why is it a molecular compound?
Silicon dioxide. It is a molecular compound because both parts of the name are non-metals.
100
What are two ways to tell that a chemical reaction has occurred?
1) change in energy 2) change in colour (products is different colour from reactants) 3) gas is formed (bubbles, odour) 4) precipitate is formed (solid subtance when two clear solutions are mixed)
100
Name the diatomic elements. (Hint: "diatomic 7")
1) hydrogen 2) nitrogen 3) oxygen 4) fluorine 5) chlorine 6) bromine 7) iodine
200
What is the difference between formulas of acids and bases
acids have H in their formulas, bases have OH in their formulas
200
Write the chemical formula for calcium chloride.
CaCl(2)
200
Quick learning check: What is the difference between an ionic compound and a molecular compound?
Ionic compounds= first part of the name is a metal ion whereas the second part of the name is a non-metal. Molecular compounds= both parts of the name are non-metals.
200
what are the products of neutralization reactions?
salt + water
200
Write and balance the following word equation as a chemical formula: Barium chloride ----> barium + chlorine
BaCl2 ----> Ba + Cl2
300
Identify the information listed for the element beryllium: a) symbol b) atomic number c) number of protons d) number of electrons e) number of neutrons
a) Be b) 4 c) 4 d) 4 e) 5
300
Write the chemical formula of aluminum nitrate.
Al2(NO3)3
300
Write the chemical formula of sulfur dioxide
SO(2)
300
What type of reaction is this? copper + silver nitrate ----> silver + copper nitrate
Single displacement reaction
300
Balance the following equation: ___ K + ___ Br2 ----> ___ KBr
2 K + Br2 ----> 2 KBr
400
What is WHMIS and what does it stand for?
WHMIS (Workplace Hazardous Materials Information System) provides information about how to store, handle and dispose of chemical substances.
400
Name the following compound: CuSO4
copper (ii) sulfate
400
what type of bonding occurs in molecular compounds?
covalent bonding
400
What type of chemical reaction is this? KOH + HCl ---> KCl + H2O
neutralization Reaction
400
Predict the Products? ___ AgNO3 + ___ BaCl2 ----> what type of reaction is this?
AgCl + Ba(NO3)2
500
Identify the elements that make up the compound NaCl. How many atoms of each element are there?
Elements: Sodium (Na) and Chlorine (Cl). There is one atom of each.
500
What is the name of SnO2
Tin (IV) oxide
500
Name the following compound: NO. Is this a molecular compound?
Nitrogen monoxide. Yes it is a molecular compound because both nitrogen (N) and oxygen (O) are non-metals.
500
How can you turn NaCl ----> Na + Cl (a decomposition reaction) into a synthesis reaction?
Flip it. Na + Cl ----> NaCl
500
Predict the Products AND Balance the following chemical equation: ___ As + ___ O(2) ----> What type of reaction is this?
4 As + 5 O2 ----> 2 As2O5 This is a synthesis reaction.
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