16 Questions
What WHMIS symbol represents flammable and combustible materials?
b) Compressed gas
What is the atomic number of the element with the mass number 14?
10
What is the name of the ion with the symbol Cl-?
Chlorine
What is the name of the ionic compound with the formula MgCl2?
Magnesium nitrate
What is the chemical formula for the ionic compound named aluminum oxide?
CaO
What is the chemical formula for the molecular compound named sulfur dioxide?
$SO2(g)$
What type of chemical reaction occurs in the equation: solid mercuric oxide → liquid mercury + oxygen gas?
Decomposition reaction
In the equation: solid calcium carbonate → solid calcium oxide + carbon dioxide gas, how many moles of solid calcium carbonate are needed to produce 2 moles of carbon dioxide gas?
1 mole
What is the molar mass of NaCl(s)?
58.44 g/mol
What is the type of chemical reaction represented by the equation: _____ Cu(s) + _____ S(s) → _____ Cu2S(s)?
Combination reaction
In the equation: _____ KCl(s) → _____ K(s) + _____ Cl2(g), what is the coefficient for KCl(s) when the equation is balanced?
1
What is the molar mass of Pb(NO3)2(s)?
254.20 g/mol
How many moles of Ag2SO4(s) are present in 77.95g of the substance?
0.30 moles
What is the molar mass of CH3COOH(l)?
58.08 g/mol
In the equation: _____ Fe2O3(s) + _____ H2(g) → _____ Fe(s) + ______ H2O(l), what type of chemical reaction is being represented?
Redox reaction
In the equation: _____ FeCl3(aq) + _____ NaOH(aq) → _____ Fe(OH)3(s) + _____ NaCl(s), what is the coefficient for Fe(OH)3(s) when the equation is balanced?
3
Test your knowledge of Workplace Hazardous Materials Information System (WHMIS) symbols by matching the numbers to the appropriate WHMIS symbol for different types of hazardous materials.
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