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WorksheetsHonors Chemistry Final Review Part 2
Total questions: 25
Worksheet time: 22mins
CO is the symbol for Carbon Monoxide. This is a(n) _________.
Element
Compound
Mixture
Atom
States that, regardless of the amount, a compound is always composed of the same elements in the same proportion by mass
Law of Definite Proportions
Law of Multiple Proportions
Law of Conservation of Mass
Periodic Table
How many carbon atoms (C) are in a CO2 molecule?
0
1
2
3
What mass of calcium metal contains the same number of atoms as 24.3 g of magnesium?
21.0 g
40.1 g
80.2 g
None of the above
This substance consists of two or more elements in a fixed mass ratio.
Element
Compound
Mixture
Pure Substance
This substance cannot be broken down by physical or chemical means.
Element
Compound
Mixture
Pure Substance
Write the letter of the box whose contents best match the description molecules of an element.
b
c
d
e
f
Which of the following is not true about one mole?
one mole contains 6.02 x 1023 particles
12 g of carbon equals one mole of carbon atoms
the mass of 1 mole of carbon atoms = the mass of 1 mole of boron atoms
the number of atoms in 1 mole of carbon = the number of atoms in 1 mole of boron
The number oxygen atoms represented by the formula Pb(C2O4)2 is
2
4
6
8
The molar mass of Na2CO3 is
51.0 g/mol
83.0 g/mol
96.0 g/mol
106.0 g/mol
What does 6.02 x 1023 represent?
The number of moles in the molar mass of any substance
The number of particles in 12 grams of any substance
The number of particles in 1 mole of any substance
The number of grams in the molar mass of any substance
How many total atoms are present in the molecule C2H6?
2
4
6
8
How many atoms are in a 4.67 g sample of silicon?
3.62x10^24
1.00x10^23
4.59x10^24
2.81x10^24
How many molecules are in one mole of oxygen gas, O2
3.01x1023
6.02x1023
3.61x1024
9.63x1024
Which calculation can be used to find the number of moles of silver nitrate used in the reaction?
17.0 g AgNO3×(1 mol/143.32 g)=0.119 mol AgNO3
17.0 g AgNO3×(1 mol/169.87 g)=0.100 mol AgNO3
17.0 g AgNO3×(1 mol/5.85 g)=2.91 mol AgNO3
17.0 g AgNO3×(1 mol/228.31 g)=0.074 mol AgNO3
Cations are positive ions, and anions are negative ions. Using the Periodic Table predict whether each element will form a positively charged ion or negatively charged ion.
Potassium(K)
Magnesium(Mg)
Calcium(Ca)
Fluorine(F)
Sulfur(S)
Bromine(Br)
Which BEST predicts the type of bond that will form between calcium (Ca) and chlorine (Cl)?
Calcium (Ca) and chlorine (Cl) will form an ionic bond because electrons are transferred from calcium to chlorine.
Calcium (Ca) and chlorine (Cl) will form an ionic bond because electrons are shared between calcium and chloride.
Calcium (Ca) and chlorine (Cl) will form a covalent bond because electrons are transferred from calcium to chlorine.
Calcium (Ca) and chlorine (Cl) will form a covalent bond because electrons are shared between calcium and chloride.
A compound has an empirical formula of CH and a molar mass of 286.44 g/mol. What is the molecular formula of the compound?
CH
C2H2
C11H11
C22H22
made up of?
What is the mass of 0.75 moles of (NH4)3PO4?
0.0044 g
91 g
110 g
74 g
What is the molar mass of table salt (NaCl)? Read all options! Be careful!
58.44 amu
35.45 g/mol
22.99 g/mol
58.44 g/mol
Hot glass looks the same as cold glass.
True
False
According to Dalton's atomic theory, all matter is made of ________.
Molecules
Protons, neutrons, and electrons
Atoms
Subatomic particles
What is the law of conservation of mass?
Matter is not created or destroyed in a closed system
A pure compound will always have the same proportion of the same elements
Atoms are indivisible and solid spheres
A chemical reaction is a rearrangement of atoms
What is the correct proportion of sodium and chlorine in table salt?
1:2
2:1
1:1
2:2
