Who's That Scientist
Which scientist quantified the relationship between pressure and air?
Robert Boyle
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
Convert the number of moles of ammonium chloride (NH4Cl) into grams.
0.436 moles of ammonium chloride
23.3 grams
Express the following number in scientific notation:
2,000,000,000
2 x 109
What does the number of protons in the nucleus of an atom determine?
Its atomic number
Which scientist stated mass is neither created nor destroyed?
What is this law called?
Antoine Lavoisier
Law of conservation of mass
Name the element and atomic number for the following elements:
- Li
- Zn
- Mn
-I
-
- Lithium, 3
- Zinc, 30
- Manganese, 25
- Iodine, 53
Convert the number of moles of aluminum iodide (AlI3) into grams.
0.031 moles of aluminum iodide
12.63 grams
Calculate the answer and use the correct number of significant figures:
(12.32)(0.50)(140) =
8.6 x 102
What was my major?
Animal Science
What was Dalton's Atomic Theory?
Each element is made up of tiny particles called atoms.
Name the symbol and atomic number for the following elements:
- Potassium
- Selenium
- Boron
- Calcium
- K, 19
- Se, 34
- B, 5
- Ca, 20
Convert the mass of sodium chloride (NaCl) into moles:
23.5 grams of sodium chloride
0.40 moles
Calculate the answer and use the correct number of significant figures:
(17.3) / 8 =
2
Write down the number of each atom in the molecule, and the total number of atoms in the molecule
(NH4)3PO4
N = 3
H = 12
P = 1
O = 4
Total = 20
What did Robert Millikan determine?
Determined the charge of an electron
Name the element and atomic number for the following elements:
- Ag
- Hg
- Pb
- Au
- Silver, 47
- Mercury, 80
- Lead, 82
- Gold, 79
Convert the mass of potassium permanganate (KMnO4) into moles.
79.9 grams of potassium permanganate
0.51 moles
Convert into decimal form:
0.35 x 10-6
0.00000035
What are compounds with a triple bond called?
Alkynes
What did J.J Thomson discover and what did he hypothesize?
The electron
Hypothesized atoms are made of a positively charged cloud, with negative electrons around it.
Name the element and its symbol from the following atomic numbers:
- 24
- 8
-31
- 26
- Chromium, Cr
- Oxygen, O
- Gallium, Ga
- Iron, Fe
Convert the number of moles of magnesium phosphate - Mg3(PO4)2 into grams.
1.077 moles of magnesium phosphate
283.1 grams
Solve and write your answer in scientific notation:
(0.9 x 104)(1.14 x 107)
1.026 x 1011
What are the seven diatomic elements on the periodic table?
H2, N2, F2, O2, I2, Cl2, Br2
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