OpenStax Chemistry Chapter 2 Quiz

Here is a quiz to test your knowledge of the second chapter of Openstax's chemistry textbook. This quiz is intended for students of the high school level.

I am currently taking a chemistry class at a community college, so I am in no way perfect. If any information in this quiz is in any way incorrect, feel free to email me about it.

Created by: Finley Root

What were John Dalton's 4 postulates?
- 1) All matter is made of atoms. Atoms are indivisible and indestructible. 2) No two electrons can have the same set of four quantum numbers. 3) Compounds are formed by a combination of two or more different kinds of atoms. 4) Electrons are added to atomic orbitals with the same energy so that each orbital is singularly occupied with electrons having the same spin.
- 1) All atoms are made of matter. Matter is indivisible and indestructible. 2) All matter is a given element are identical in mass and properties. 3) Compounds are formed by a combination of two or more different kinds of matter. 4) A chemical reaction is a rearrangement of matter.
- 1) All matter is made of atoms. Atoms are indivisible and indestructible. 2) All atoms of a given element are identical in mass and properties. 3) Compounds are formed by a combination of two or more different kinds of atoms. 4) A chemical reaction is a rearrangement of atoms.
- 1) All atoms are made of matter. Matter is indivisible and indestructible. 2) No two electrons can have the same set of four quantum numbers. 3) Compounds are formed by a combination of two or more different kinds of matter. 4) Electrons are added to atomic orbitals with the same energy so that each orbital is singularly occupied with electrons having the same spin.
Thompson's cathode ray tube experiment determined:
- The charge of the electron
- The existence of electrons
- The mass-to-charge ratio of the neutron
- The mass of the electron
The Millikan oil drop experiment determined:
- The mass of the electron
- The charge of the electron
- The mass of the proton
- Both (A) and (B)
Rutherford's gold foil experiment determined that
- electrons have a negative charge.
- most of the space in an atom is empty except for a concentrated area called the nucleus.
- protons and neutrons have about the same mass.
- neutrons have no charge.
The charge of a proton, neutron, and electron are
- negative, positive, and neutral respectively.
- positive, negative, and neutral respectively.
- neutral, positive, and negative respectively.
- positive, neutral, and negative respectively.
The atomic number is
- the number of neutrons in an atom
- the number of protons minus the amount of neutrons in an atom
- the number of protons in an atom
- the number of neutrons minus the amount of protons in an atom
The mass number is
- the number of protons plus the amount of neutrons in an atom
- the number of neutrons in an atom
- the number of protons plus the amount of electrons in an atom
- the number of protons in an atom
The charge of an atom can be calculated by
- adding the number of protons and electrons in an atom
- subtracting the number of protons from the number of electrons in an atom
- adding the number of protons and neutrons in an atom
- subtracting the number of electrons from the number of protons in an atom
Ions are atoms with an imbalance of protons and (A). Cations are (B), and anions are negative.
- (A) neutrons (B) neutral
- (A) electrons (B) neutral
- (A) neutrons (B) positive
- (A) electrons (B) positive
Isotopes are variants of atoms that have differing numbers of
- protons
- molecules
- neutrons
- electrons
Atomic mass is found on the periodic table under an element's atomic symbol. What does this number represent?
- The average mass of an atom of a chemical element expressed in atomic mass units.
- The total number of protons and neutrons in a nucleus.
How is 2NaHCo3 different from Na2HCo3?
- 2NaHCo3 has 2 sodium atoms, hydrogen, and cobalt atoms, while Na2HCo3 has 1 sodium, 2 hydrogen, and 1 cobalt atom.
- 2NaHCo3 has 2 sodium atoms, 2 hydrogen, and 6 cobalt atoms, while Na2HCo3 has 2 sodium, 1 hydrogen, and 3 cobalt atoms.
- 2NaHCo3 has 2 sodium atoms, hydrogen, and cobalt atoms, while Na2HCo3 has 1 sodium, 2 hydrogen, and 3 cobalt atoms.
- 2NaHCo3 is a compound, while Na2HCo3 is a molecule.
Which of the following is methane's structural formula?
- 4 hydrogen atoms surrounding 1 carbon atom
- 4CH
- CH4
- 4 carbon atoms surrounding 1 hydrogen atom
Sulfuric acid's molecular formula is H2SO4. What is sulfuric acid's empirical formula?
- H2SO4
- HSO
- HSO2
- H4SO2
Isomers are
- compounds with same formula but a different arrangement of atoms in the molecule.
- compounds with the same arrangement of atoms in the molecule but different formulas.
The mole is defined as
- exactly 6.02214076×10^23 particles.
- exactly 6.02214076×10^-23 particles.
The molar mass is
- the mass of an element
- the mass of a molecule
- the mass of a compound
- the mass of a mixture
Billy finds 189.97g of gold in his closet, how many moles of gold does Billy have? (Au atomic mass = 196.97 g/mol)
- 3.7418 x 10^4 mol Au
- 0.9644616 mol Au
- 0.96446 mol Au
- 3.741839 x 10^4 mol Au
Susie dropped her 137.33 moles of Barium. How many grams of Barium did she drop? (Ba atomic mass = 137.33 g/mol)
- 1.8859 x 10^4 g Ba
- 1.0000 g Ba
- 1 g Ba
- 1.88 x 10^4 g Ba

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