Chemistry Final Exam (F24)

Chemistry is ...

• The study of substances

• The study of matter

• The study of matter and how it changes states

• The study of matter and the changes it undergoes

Matter is defined as something that (?) and (?). [2 conditions]

• Has mass

• Has Weight

• Takes up space

• Affected by gravity

The hypothesis statement MUST be in the form of what type of statement?

• An If, Then statement

• The precise list of materials that will be used

• A Yes/No statement

• An list of potential outcomes

The variable that is changed, or manipulated is called the (...) variable.

• Dependent

• Independent

• Control

• Other

The 2 types of data are:

• independent and dependent

• qualitative and quantitative

• qualitative and control

• quantitative and independent

Which of the following is NOT a characteristic of a chemical reaction?

• Change in color

• Formation of a solid

• Change in temperature

• No change in energy

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Intro

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How many electrons can the first energy level of an atom hold?

• 2 electrons

• 8 electrons

• 18 electrons

• 32 electrons

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Intro

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How are the rows and columns of the periodic table organized?

• Rows are organized by increasing atomic numbers and columns by similar properties.

• Rows are organized by decreasing atomic mass, columns by increasing atomic number.

• Rows are organized by increasing atomic mass, columns by similar properties.

• Rows and columns are randomly organized.

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Intro

Topic-0.1

What is the key difference between covalent and ionic bonds?

• Covalent bonds involve the transfer of electrons, while ionic bonds involve the sharing of electrons.

• Covalent bonds involve the sharing of electrons, while ionic bonds involve the transfer of electrons.

• Covalent bonds involve only nonmetals, while ionic bonds involve both metals and nonmetals.

• Covalent bonds are stronger than ionic bonds.

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Intro

Topic-0.1

What are the starting substances in a chemical reaction called?

• Reactants

• Products

• Catalysts

• Elements

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Intro

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