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monster
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star
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gift
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thief
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15
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Balanced or Unbalanced? 6CO2 + 6H2O â C6H12O6 + 6O2
Balanced
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15
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Which of the following chemical formulas contains the most molecules? a. 5CO b. 3H2O c. 2Fe2O3 d. 4C3H8
a. 5CO
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15
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Balanced or Unbalanced? SnO2 + 2H2 â Sn + H2O2
Unbalanced
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Which of the following chemical formulas contains the most elements? a. CO b. NaCl c. NaHCO3 d. H2O
c. NaHCO3
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A(n) ____________________ is a shorthand representation of an element or compound using chemical symbols.
Chemical Formula
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Which of the following chemical formulas contains the most total atoms? a. CO b. H2O c. Fe2O3 d. C3H8
d. C3H8
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thief
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gift
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fairy
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baam
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15
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Balanced or Unbalanced? 3C + 2Fe2O3 â 4Fe + 3CO2
Balanced
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Briefly explain the Law of Conservation of Mass in your own words.
The Law of Conservation of Mass states that matter cannot be created or destroyed.
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Balanced or Unbalanced? Mg + HCl â MgCl2 + H2
Unbalanced
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Physical or Chemical Change: Sugar dissolving in tea.
Physical
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Which number in a chemical formula tells you how many molecules of an element or compound you have?
Coefficient
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How many atoms, elements, and molecules does the following formula have: 4C3H8 ?
Atoms: 44, Elements: 2, Molecules: 4
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If the number of atoms of each element in a chemical equation are not equal on both sides of a chemical equation, then the equation is -
Unbalanced
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lifesaver
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gold
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gift
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