Counting Atoms
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15 QuestionsShow answers
  • Question 1
    300 seconds
    Q.

    What does the subscript in a chemical formula tell you?

    answer choices

    How many molecules are present

    How many atoms are present

    How many elements are present

    How many neutrons are present

  • Question 2
    300 seconds
    Q.

    How many elements are in this chemical formula?

    HCl

    answer choices

    1

    2

    3

    4

  • Question 3
    300 seconds
    Q.

    How many atoms of Carbon are in this formula? C6 H12O6C_{6\ }H_{12}O_6  

    answer choices

    6

    1

    12

  • Question 4
    300 seconds
    Q.

    What elements are represented in this chemical formula?  Fe2O3Fe_2O_3  

    answer choices

    Iron, Oxygen

    Francium, Europium, Oxygen

    Ferrium, Oxygen

    Berylium, Oxygen

  • Question 5
    300 seconds
    Q.

    What is the total number of atoms in this formula? H2O2H_2O_2  

    answer choices

    2

    4

    3

  • Question 6
    300 seconds
    Q.

    How many more atoms of Oxygen than than Magnesium are in this formula? MgSO4MgSO_4  

    answer choices

    4

    3

    2

    6

  • Question 7
    300 seconds
    Q.

    Which of the following elements is least likely to form a compound?

    answer choices

    Hydrogen

    Sodium

    Argon

    Potassium

  • Question 8
    300 seconds
    Q.

    Which of the following is a molecule of a compound?

    answer choices

    H2H_2

    Cl2Cl_2

    H2OH_2O

    F2F_2

  • Question 9
    300 seconds
    Q.

    Which does not belong in the group?

    answer choices

    Sodium

    Glucose

    carbon

    Element

  • Question 10
    300 seconds
    Q.

    Is this an element or a compound?  CaSO4CaSO_4  

    answer choices

    Element

    Compound

  • Question 11
    300 seconds
    Q.

    Which chemical formula correctly displays 1 atom of nickel and 2 atoms of Fluorine?

    answer choices

    niF2

    NIF2

    Ni1F2

    NiF2

  • Question 12
    300 seconds
    Q.

    What is the total number of atoms in this chemical formula? C8H3NaBr12C_8H_3NaBr_{12}  

    answer choices

    18

    12

    25

    24

  • Question 13
    300 seconds
    Q.

    Which element has the greatest number of atoms?  AgNO3AgNO_3  

    answer choices

    Silver

    Gold

    Nitrogen

    Oxygen

  • Question 14
    300 seconds
    Q.

    Molecules that are made of more than one type of atom are called?

    answer choices

    Molecules

    Elements

    Mixtures

    Compounds

  • Question 15
    300 seconds
    Q.

    How many elements are in this chemical formula?  NaHCO3NaHCO_3  

    answer choices

    1

    2

    3

    4

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