Chemistry Quiz: section 1



Chemistry Chapter 3 Test / Full Name:___________________________ Folder # _____

Match-up:

____ 1- Law of Multiple Proportions A- A law used in science that states: Matter can neither be created nor destroyed.

____ 2- Law of Conservation of Mass B- A law used in science that states: If two or more different compounds are composed of the same two elements, the masses of the second element combined with a certain mass of the first element can be expressed as ratios of small whole numbers.

____ 3- Law of Definite Composition C- A law used in science that states: Energy can neither be created nor destroyed.

____ 4- Law of Conservation of Energy D- A law used in science that states: Every chemical compound has a definite composition by mass.

____ 5- Law of Murphy E- A law proposed by some Irish dude that states: Anything that can go wrong, will go wrong.

____ 6- Law of Teenagers F- A myth that exists amongst teenagers that states: Everyone in the world doesn’t know what they’re talking about and thus can never prove I am wrong; therefore, I know everything and am always right no matter what people say or can prove otherwise so don’t even try cuz if you do I’ll just tune you out and do my own thing anyways and be rich some day despite the way you put me down in front of my friends who agree with me and support my every decision no matter how ridiculous and crazy you think it is so like, you know, stop hassling me dude and like chill and get off my case man.

Short Answer:

7 -11) List the five essential points of Dalton’s atomic theory:

1-__________________________________________________________________________________

2-__________________________________________________________________________________

3-__________________________________________________________________________________

4-__________________________________________________________________________________

5-__________________________________________________________________________________

True or False:

12) T / F : The word “atom” comes from an Epytian word meaning dividable.

13) T / F : Dalton developed his Atomic Theory mainly from his observations of gases in the atmosphere.

14) T / F : Mass is always conserved in chemical reactions.

15) T / F : In all chemical reactions, a portion of energy used by the reaction is destroyed.

16) T / F : Chemical reactions are simply the combination, separation, or rearrangement of atoms.

17) T / F : Scientists often use more than one method to gather data.

Fill-in-the-blanks:

18: ________________________ was the name of the Greek dude that lived around 400 BC who came up with the name “Atom” for tiny particles that can’t be divided any further.

19: ________________________ , another Greed dude who lived about 50 years later than the Greek dude in number xx above did not believe in atoms, but rather that all matter was ____________________________ .

20: Over 2,000 years later than the Greek dudes above, an English dude named _____________ ______________ , who was a school teacher, developed a theory that in five basic statements summarizes the Atomic Model.

Chemistry Chapter 3 Test / Full Name:___________________________ Folder # _____

Chart: Complete the following chart:

|Quiz # |Compound Name |Compound Symbol |

|21 |Carbon Monoxide | |

|22 | |CO2 |

|23 |Di-hydrogen Monoxide | |

|24 | |NaCl |

|25 | |C6H12O6 |

|26 |Sulphuric Acid | |

|27 |Hydrochloric Acid | |

|28 |Nitric Acid | |

|29 | |CaCO3 |

|30 |Hydrogen Peroxide | |

|31 |Ethanol | |

Short Essay: ( Small writing; bonus points for cursive, must fill-up rest of page.)

32) Topic: What laws can be explained through the use of Dalton’s theory? ( 20 points)

Instructions: State each law and describe how Dalton’s atomic theory can be used to explain the law.

Hint: There are 4 laws mentioned in this quiz that can be explained using Dalton’s theory.

Bonus Question:

33) In 1964 just outside of Blythe, an entire platoon of Army soldiers conducting war games in the desert were captured by a group of what from Parker? ________________________________________

Chemistry Chapter 3 Test / Full Name:___________________________ Folder # _____

Match-up:

____ 1- Atom A- The short-range proton-neutron, proton-proton, and neutron-neutron forces that hold the nuclear particles within an atom together.

____ 2- Atomic Structure B- The identity and arrangement of smaller particles within atoms.

____ 3- Electron C- A negatively charged sub-atomic particle.

____ 4- Nucleus D- The positively charged dense center portion of the atom that contains nearly all of it’s mass but takes up only an insignificant fraction of it’s volume.

____ 5- Proton E- A subatomic particle that has a positive charge equal in magnitude to the negative charge of an electron and is present in atomic nuclei.

____ 6- Neutron F- Atoms of the same element that have different masses.

____ 7- Nuclear Forces G- The smallest unit of an element that can exist alone or in combination with other elements.

____ 8- Isotopes H- An electrically neutral, sub-atomic particle found in atomic nuclei.

True or False:

9) T / F : Hydrogen and its isotopes have different nuclei.

10) T / F : Every element has exactly the same number of protons as electrons.

11) T / F : Every element has isotopes.

12) T / F : The only difference between isotopes of the same element is the number of electrons.

13) T / F : Nuclear forces are responsible for the delicate balance held within an atom.

Fill-in-the-blanks:

14: The discovery of _________________ was made in 1897 by an English physicist dude named Sir Joseph John Thompson who built and used cathode-ray tubes to identify these sub-atomic ______________. Although cathode-ray tubes were useful in figuring-out the structure of the ___________, their real usefulness came about 50 years later when they were used to make the first _________ sets in America which resulted in the end of the radio entertainment era. Further refinement of the cathode-ray tube, which energizes different types of ________ to make different colors, resulted in a type of sign that used to light-up the __________ strip but are now a rare sign to see.

15: An American physicist dude named Robert Millikan figured out the mass of an __________________ in 1909.

16: In 1909 a dude from New Zealand named Ernest Rutherford discovered that the atom has a _________________ and that it gives off a ___________________ charge.

17: In 1986, the ______________ Prize in science achievement was shared by Ernst Ruska, Gerd Binning, and Heinrich Rohrer for their work on ________________________.

Diagram:

18) In the space below, make a model sketch of the Lithium atom showing and labeling all sub-atomic particles and their proper locations. (12 points)

Chemistry Chapter 3 Test / Full Name:___________________________ Folder # _____

Short Essay: ( Small writing; bonus points for cursive, must fill-up rest of page.)

19) Explain how the three isotopes of hydrogen compare in terms of the numbers of sub-atomic particles in each.

Hint: This is basically the definition of an isotope but in more detail.

Bonus Question:

20) What was the first name of the dude who our great town of Parker is named after? _______________

Chemistry Chapter 3 Test / Full Name:___________________________ Folder # _____

Match-up:

____ 1- Atomic Number A- The number of particles in exactly one mole of a pure substance.

____ 2- Mass Number B- The amount of a substance that contains the same number of particles as the number of atoms in exactly 12 grams of carbon-12.

____ 3- Nuclide C- The relative atomic mass of atoms of a nuclide.

____ 4- Atomic Mass Unit D- The weighted average of the atomic masses of the naturally occurring isotopes of an element.

____ 5- Atomic Mass E- A general term for any isotope of any element.

____ 6- Average Atomic Mass F- Symbolized by the letter u, and is exactly 1/12th the mass of a carbon-12 atom, or 1.66 x 10-24 grams.

____ 7- Nuclide Atomic Mass G- The mass of an atom that is expressed in atomic mass units.

____ 8- Mole H- The total number of protons and neutrons in the nucleus of an isotope.

____ 9- Avogadro’s Number I- The abbreviation for the Mole.

____ 10- Molar Mass J- The number of protons in the nucleus of each atom of that element.

____ 11- mol K- The mass in grams of one mol of an element.

Calculations:

12 – 15) Determine the number of protons, electrons, and neutrons in each of the following isotopes.

12) sodium-23 | 13) calcium-40

P = _________ | P = _________

|

E = _________ | E = _________

|

N = ________ | N = ________

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14) 6429 Cu | 15) 10847 Ag

P = _________ | P = _________

|

E = _________ | E = _________

|

N = ________ | N = ________

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16 – 18) Determine and write both the nuclear symbol and the hyphen notation for each of the following described neutral isotopes using the given information.

16) Mass number = 28, Atomic number = 14

17) 26 Protons and 30 Neutrons

18) 56 Electrons and 82 Neutrons

Chemistry Chapter 3 Test / Full Name:___________________________ Folder # _____

Calculations continued:

19) To three decimal places, what is the relative atomic mass of Potassium ? ____________________________

20) To three decimal places, what is the molar mass of Calcium ? ______________________________

21) What is the mass in grams of 2.00 mol N ? _______________________________

22) What is the mass in grams of 3.01 x 1023 atoms of Cl ? _________________________

23) How many moles are in 12.15 g Mg ? ______________________________

24) How many moles are in 1.50 x 1023 atoms of F ? ____________________________

25) How many atoms are contained in 2.50 mol Zn ? ____________________________

26) How many atoms are contained in 1.50 g C ? _____________________________

True or False:

27) T / F : The term atomic weight is sometimes used synonymously with the term atomic mass.

28) T / F : The term nuclide atomic mass is sometimes used synonymously with the term relative atomic mass.

29) T / F : The isotopes protium, deuterium, and tritium are isotopes of helium.

30) T / F : Most isotopes are identified only by their mass numbers and have no individual names.

31) T / F : Avogadro was smart Spaniard who got his bachelor’s degree at the age of 16.

32) T / F : Most elements occur naturally on Earth as isotopes.

33) T / F : The super script placed before an element’s symbol is that element’s mass number.

34) T / F : The subscript placed before an element’s symbol is that element’s atomic number.

Bonus Question:

35) Who has the record for the most Emmys won in a single year? _________________________________

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