Quarter 3 Examination

Question 1

• A homogeneous mixture of two or more substances.
• Categorized as a homogeneous mixture because its components are indistinguishable from one another

Answer 1

Solution

Question 2

the one being dissolved

Answer 2

Solute

Question 3

the dissolving medium

Answer 3

Solvent

Question 4

A solution which can dissolve further amount of solute at a particular temperature

Answer 4

Unsaturated

Question 5

A solution which can not dissolve further amount of solute at a particular temperature

Answer 5

Saturated

Question 6

It has dissolved more amount of solute than can be dissolved by solvent

Answer 6

Super saturated

Question 7

Pertains to the maximum amount of solute dissolved in a given amount of solvent at a specific temperature and pressure

Answer 7

Solubility

Question 8

Means that the amount of solute is relatively high

Answer 8

Concentrated

Question 9

Means that the amount of solute is relatively low

Answer 9

Diluted

Question 10

is the ratio of the mass of a solute to the mass of the solution, multiplied by 100.
mass of solute
OVER
mass of solution x 100

Answer 10

Percent by mass

Question 11

is the ratio of volume (mL) of a liquid solute to the volume of solution,multiplied by 100.
volume of solute
OVER
volume of solution x 100

Answer 11

Percent by volume

Question 12

refers the amount of mole of solute per kilogram of solvent. It is given by a number followed by an italic lower case m. For example, a 5 m aqueous solution contains 5 mol of glucose (C,H,0.) per kilogram of water.

Answer 12

Molality

Question 13

refers the number of moles of solute per liter of solution. It is calculated by didviding the number of moles of solute by the volume of solution in liters.

Answer 13

Molarity

Question 14

is used to determine the quantity or amount or a substance in a solution

Answer 14

Titration

Question 15

the lowering of vapor pressure

Answer 15

Raoult’s law

Question 16

is defined as “energy motion”

Answer 16

Kinetic energy

Question 17

is considered as the “energy at rest”

Answer 17

Potential Energy

Question 18

state the energy is neither created nor destroyed, but is converted from one form to another

Answer 18

Law of Conservation of Energy

Question 19

include mechanical energy, which result from physical work; radiant or light energy

Answer 19

Forms of Energy

Question 20

is defined as the transfer of thermal energy

Answer 20

Heat

Question 21

Referring to the particular area of interests (within the circle)

Answer 21

System

Question 22

Everything outside the area of interests (outside the circle but whitin the box)

Answer 22

Surroundings

Question 23

Allow the transfer of mass and energy

Answer 23

Open System

Question 24

Do not allow the transfer of mass and energy.

Answer 24

Isolated system

Question 25

**Allow the flow** of energy but not mass

Answer 25

Closed system

Question 26

Process of **transferring heat from the system** to the surroundings

Answer 26

Exothermic

Question 27

If the flow of heat is **from the surroundings to the system**

Answer 27

Endothermic

Question 28

- Identified that chemical reactions can be studied in **terms of the flow of energy,** part of higher field - **Provides a better view on the energetics reaction**

Answer 28

Thermodynamics

Question 29

Is associated with the transformation of **reactants to product**

Answer 29

Heat of reaction

Question 30

The **balanced equation** showing the associated heat of reaction

Answer 30

Thermochemical equation

Question 31

**States that enthalpy change ( H) is independent** of the number of steps involved in a reaction.

Answer 31

Hess’s Law

Question 32

Is the **measurement of the heat released or absorbed** during a physical or chemical process.

Answer 32

Calorimetry

Question 33

**Contains water and/or other materials** which can absorb heat

Answer 33

Calorimeter

Question 34

**The branch of chemistry** that deals with the rate of chemical reaction

Answer 34

Chemical Kinetics

Question 35

Can be defined as the change in **concentration per unit time**

Answer 35

Rate of reaction

Question 36

The reliance of the **reaction rate** concentration of the reactants can be **expressed through an equation**

Answer 36

Rate law

Question 37

Pertains to amount of time that a reactant needs to **decrease by half** from its initial concentration

Answer 37

Half life

Question 38

Which states that chemical reactions occur **as a result of collisions** between reacting molecules

Answer 38

Collision theory

Question 39

To initiate the reaction, molecules of the reactants **must meet a minimum amount of kinetic**

Answer 39

Activation Energy

Question 40

Pertains to the physical and chemical **properties of the reactants,** including their states, bond type and strength

Answer 40

Nature of Reactants

Question 41

Substance that **speeds up the reaction rate** being used up in the process

Answer 41

Catalyst

Question 42

Made from **non-carbon** containing compounds or elements

Answer 42

Inorganic Catalysts

Question 43

**Carbon-containing** compounds, also known enzymes

Answer 43

Biological Catalysts

Question 44

**Different phase** from reactants

Answer 44

Heterogeneous

Question 45

Same phase

Answer 45

Homogeneous