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FINAL REVIEW

MATH SKILL

ATOMS

BONDING

HEAT & ENERGY

GASES

SUBSTANCES & MIXTURES

MATH SKILLS HEAT & ENERGY SUBSTANCES & MIXTURE ATOMS BONDING GASES $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500 FINAL JEOPARODY

During a laboratory activity, a student combined two solutions During a laboratory activity, a student combined two solutions. In the laboratory report, the student wrote “A yellow color appeared.” The statement represents the student’s recorded conclusion 2) observation 3) hypothesis 4) inference

2) observation

The diagram below represents a portion of a 100-milliliter graduated cylinder. What is the reading of the meniscus? 1) 35.0 mL 2) 36.0 mL 3) 44.0 mL 4) 45.0 mL

1) 35.0 mL

Which temperature change indicates an increase in the average kinetic energy of the molecules in a sample? 1) 15 C to 298 K 2) 37 C to 273 K 3) 305 K to 0 C 4) 25 C to 355 C

1) 15 C to 298 K

Which unit is used to express the pressure of a gas? 1) mole 2) joule 3) kelvin 4) pascal

4) PASCAL

Expressed to the correct number of significant figures, the sum of two masses is 445.2 grams. Which two masses produce this answer? 210.10 g + 235.100 g 210.100 g + 235.10 g 210.1 g + 235.1 g 210.10 g + 235.10 g

3) 210.1 g + 235.1 g

Which quantity is equivalent to 50 kiloJoules? 1) 5000 J 2) 0.05 J 3) 5 × 103 J 4) 5 × 104 J

3) 5 × 103 J

What is the charge of the nucleus of an oxygen atom? 1) 0 2) –2 3) +8 4) +16

3) +8

What is the number of electrons in an atom that has 3 protons and 4 neutrons? 1) 1 2) 7 3) 3 4) 4

3) +3

As an atom in the excited state returns to the ground state, the energy of the atom 1) decreases 2) increases 3) remains the same

3) remains the same

What are the characteristics of a neutron? 1)  It has no charge and no mass. 2)  It has no charge and a mass of 1 amu. 3)  It has a charge of +1 and no mass. 4)  It has a charge of +l and a mass of 1 amu.

1)  It has no charge and no mass.

During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited lithium atoms 1)  return to lower energy states within the atoms 2)  are lost by the atoms 3)  move to higher energy states within the atoms 4)  are gained by the atoms

1)  return to lower energy states within the atoms

Every chlorine atom has a mass number of 35 an atomic number of 17 3) 17 neutrons 4) 7 electrons

an atomic number of 17

What is formed when two atoms of bromine bond together? 1) a heterogeneous mixture 2) a monatomic molecule 3) a homogeneous mixture 4) a diatomic molecule

4) a diatomic molecule

Base your answer to the following question on Which pair of characteristics describes the molecule illustrated below? asymmetrical and polar 2) symmetrical and polar 3) symmetrical and nonpolar 4) asymmetrical and nonpolar

asymmetrical and polar

Based on bond type, which compound has the highest melting point? 1) C6H14 3) CH3OH 2) CaCl2 4) CCl4

2) CaCl2

Based on your Reference Tables, the atoms of which of these elements have the strongest attraction for electrons in a chemical bond? 1) P 2) N 3) Pt 4) Na

2) N

Which kind of energy is stored within a chemical substance? 1) kinetic energy 2) potential energy 3) activation energy 4) free energy

2) potential energy

Which sample of water contains particles having the highest average kinetic energy? 25 mL of water at 95°C 2) 45 mL of water at 75°C 3) 75 mL of water at 75°C 4) 95 mL of water at 25°C

25 mL of water at 95°C

How many Joules of heat energy are released when 50 How many Joules of heat energy are released when 50. grams of water are cooled from 70.oC to 60.oC? 1) 210 J 2) 4200 J 3) 42 J 4) 2100 J

4) 2100 J

As a solid substance absorbs heat at its melting point, the melting point will decrease 2) increase 3) remain the same

3) remain the same

The graph below represents the uniform heating of a substance, starting with the substance as a solid below its melting point. Which line segment represents an increase in potential energy and no change in average kinetic energy? 1) BC 2) CD 3) EF 4) AB

1) BC

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