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Chemistry Review for Final

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Questions and Answers

What is the law related to the statement 'there are allocations'?

Law of Avogadro

Law of Nagy (correct)

Law of Conservation of Mass

Law of Dalton

What is the electron dot model used for?

To represent the electron configuration of an atom (correct)

To determine the boiling point of a substance

To calculate the pH of a solution

To draw the molecular structure of a compound

What is the formula for the compound formed by the reaction of magnesium and oxygen?

MgO2

MgO (correct)

Mg2O

Mg3O2

Which of the following compounds is not likely to be formed by the reaction of iron and oxygen?

Fe2O (C) Signup and view all the answers

Why do batteries stay fresh longer when kept in cold storage?

Because chemical reactions slow down at lower temperatures (C) Signup and view all the answers

What does the group A number of an element represent?

The number of valence electrons in an atom (D) Signup and view all the answers

What type of bond is formed between two nonmetal atoms?

Covalent bond (D) Signup and view all the answers

What is the term for a charged atom or group of atoms?

Ion (D) Signup and view all the answers

What is the term for a reaction where a compound breaks down into two or more simple substances?

Decomposition reaction (A) Signup and view all the answers

What is the term for a type of covalent bond where the atoms equally share the electrons?

Nonpolar covalent bond (D) Signup and view all the answers

What is the term for a notation that shows what elements a compound contains and their ratio?

Molecular formula (C) Signup and view all the answers