Ch 1

Who's That Scientist

100

Was the first "chemist" and quantified the relationship between pressure and the volume of air

Robert Boyle

200

Stated the Law of conservation of mass

Antoine Lavoisier

300

Proposed the atomic theory

John Dalton

400

Conducted experiments using cathode-ray tubes that lead to the discovery of the electron

J.J. Thomson

500

Determined the charge of an electron using the oil-drop experiment

Robert Millikan

Periodic Table

100

Name the symbol, and atomic number for the following elements:

- Hydrogen

- Sodium

- Copper

- Magnesium

- Hydrogen = H, 1

- Sodium = Na, 11

- Copper = Cu, 29

- Magnesium = Mg, 12

200

Name the element and atomic number for the following elements:

- Li

- Zn

- Mn

-I

- Lithium, 3

- Zinc, 30

- Manganese, 25

- Iodine, 53

300

Name the symbol and atomic number for the following elements:

- Potassium

- Selenium

- Boron

- Calcium

- K, 19

- Se, 34

- B, 5

- Ca, 20

400

Name the element and atomic number for the following elements:

- Ag

- Hg

- Pb

- Au

- Silver, 47

- Mercury, 80

- Lead, 82

- Gold, 79

500

Name the element and its symbol from the following atomic numbers:

- 24

- 8

-31

- 26

- Chromium, Cr

- Oxygen, O

- Gallium, Ga

- Iron, Fe

Stoichiometry

100

Convert the number of moles of ammonium chloride (NH₄Cl) into grams.

0.436 moles of ammonium chloride

23.3 grams

200

Convert the number of moles of aluminum iodide (AlI₃) into grams.

0.031 moles of aluminum iodide

12.63 grams

300

Convert the mass of sodium chloride (NaCl) into moles:

23.5 grams of sodium chloride

0.40 moles

400

Convert the mass of potassium permanganate (KMnO4) into moles.

79.9 grams of potassium permanganate

0.51 moles

500

Convert the number of moles of magnesium phosphate - Mg₃(PO₄)₂ into grams.

1.077 moles of magnesium phosphate

283.1 grams

Scientific Notation

100

Express the following number in scientific notation:

2,000,000,000

2 x 10⁹

200

Calculate the answer and use the correct number of significant figures:

(12.32)(0.50)(140) =

8.6 x 10²

300

Calculate the answer and use the correct number of significant figures:

(17.3) / 8 =

2

400

Convert into decimal form:

0.35 x 10^-6

0.00000035

500

Solve and write your answer in scientific notation:

(0.9 x 10⁴)(1.14 x 10⁷)

1.026 x 10¹¹

Miscellaneous

100

What does the number of protons in the nucleus of an atom determine?

Its atomic number

200

What is my major?

Biochemistry and Biology

300

What is my career goal?

Pediatrician

400

What is a chemical bond between two atoms involving six electrons called?

A triple bond

500

What are the seven diatomic elements on the periodic table?

H₂, N₂, F₂, O₂, I₂, Cl₂, Br₂

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