Download - Test #3 Review Questions
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Test #3 Review Questions
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8SO3
Identify the coefficient in the formula below and tell what it means
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8SO3
Identify the coefficient in the formula below and tell what it means
TELLS THE NUMBER OF MOLECULES PRESENT- IN THIS CASE, THERE ARE 8
MOLECULES
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2AgNO3 + CaCl2 → AgCl + Ca(NO3)2
Chemical equations like the one below represent…
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2AgNO3 + CaCl2 → AgCl + Ca(NO3)2
Chemical equations like the one below represent…
CHEMICAL CHANGES
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8S + 12O2 → 8SO3
Identify the products and reactants in the equation below.
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8S + 12O2 → 8SO3
Identify the products and reactants in the equation below.
REACTANTS PRODUCTS
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8SO3
Identify the subscript in the formula below and tell what it means
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8SO3
Identify the subscript in the formula below and tell what it means
TELLS THE NUMBER OF ATOMS PRESENT- IN THIS
CASE, THERE ARE 24 ATOMS OF OXYGEN
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temperature changegas produced color change
The list below identifies what…
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temperature changegas produced color change
Signs that a chemical change has occurred
The list below identifies what…
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Cu + CO2 CuCO2
Determine if the equation below is balanced or unbalanced.
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Cu + CO2 CuCO2
Determine if the equation below is balanced or unbalanced.
Cu = 1C= 1O = 2
BALANCED
Cu = 1C= 1O = 2
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Elements in the same group have what in common?
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Valence electrons Chemical properties
Elements in the same group have what in common?
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What is the Law of Conservation of Mass?
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Matter cannot be created nor destroyed
What is the Law of Conservation of Mass?
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Where are non-metals located on the periodic table?
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Right side of the stair-step
Where are non-metals located on the periodic table?
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The formulas below represent examples of…
CO2 H2O NaCl SO4
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Compound molecules
The formulas below represent examples of…
CO2 H2O NaCl SO4
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7CaCl2
How many atoms of Calcium and Chlorine are in the formula below?
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7CaCl2
How many atoms of Calcium and Chlorine are in the formula below?
7 CALCIUM ATOMS14 CHLORINE ATOMS
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4CuSO4
How many molecules are present in the formula below?
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4CuSO4
How many molecules are present in the formula below?
4 MOLECULES
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Cl + O2 Cl2O3
Determine if the equation below is balanced or unbalanced.
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Cl + O2 Cl2O3
Determine if the equation below is balanced or unbalanced.
Cl = 1O = 2
UNBALANCED
Cl = 2O = 3