General Chemistry 1

Question 1

Refers to the amount of matter in an object.

Answer 1

Mass

Question 2

What is density?

Answer 2

It is the measure of mass per unit volume.

Question 3

Measure of the 3D space.

Answer 3

Volume

Question 4

State of matter which is slightly compressible and has high density.

Answer 4

Liquid

Question 5

Differentiate Bose-Einstein Condensate and Plasma

Answer 5

BEC has very low kinetic energy while Plasma has very high.

Question 6

How would you describe “gasses” in terms of its heat expansion and density?

Answer 6

Gasses has high heat expansion and very low density.

Question 7

How will you define Plasma? Give examples of matter in this state.

Answer 7

It is produced when gasses are heated to the point where the gasses become charged

Examples: Lightning, Stars, Sun, and Neon Lights

Question 8

What is the process of turning solid into gas, then gas to solid?

Answer 8

Solid to Gas: Sublimation

Gas to Solid: Deposition

Question 9

State the phase change that may occur when Gas to Liquid happens

Answer 9

Condensation

Question 10

TRUE OR FALSE: CLOUDS ARE LIQUID

Answer 10

TRU

Question 11

How would you define Pure Substances?

Answer 11

It cannot be separated through physical means since its a sample of matter with both definite and constant composition and distinct chemical properties.

Question 12

What type of pure substance can be chemically decomposed? Define and give examples.

Answer 12

Compounds - substance containing 2 or more of different elements that are bonded.

Question 13

What are Mixtures?

Answer 13

It is made by mixing substances together even though its not chemically bonded.

Question 14

Differentiate Homogeneous from Heterogeneous

Answer 14

Homogenous are composed of 2 or more compounds that exists only in one phase. Heterogeneous is a combination of compound that exists in two or more phase which is distinguishable for each other.

Question 15

State the phase change that may occur when Liquid turns in to Gas

Answer 15

Vaporization

Question 16

State the phase change that may occur when Gas turns in to Plasma

Answer 16

Ionization

Question 17

State the phase change that may occur when Plasma turns in to Gas

Answer 17

Recombination

Question 18

State the phase change that may occur when Solid turns in to Bose Einstein Condensate

Answer 18

Cooling and Compression

Question 19

What is the process of turning solid into liquid, then liquid to solid?

Answer 19

Melting and Freezing

Question 20

It is a type of heterogenous mixture which can scatter light or also known as Tyndall effect.

Answer 20

Colloid

Question 21

What are the similarities of Solutions and Colloids?

Answer 21

Particles don’t separate on standing and can’t be separated by filtration.

Question 22

Air is what kind of mixture?

Answer 22

Homogeneous

Question 23

What are Solids?

Answer 23

State of matter in which the particles are
very close to each other. Solid object have a
definite shape and volume.

Question 24

What are Liquids?

Answer 24

State of matter in which the particles are
neither close nor too far from each other. Liquids
have a definite volume but indefinite shape.

Question 25

What are Gasses?

Answer 25

State of matter in which the particles are very far from each other. Gases have indefinite shape nor volume

Question 26

Compounds are substances containing two or | more of different "blank" that are chemically bonded with each other

Answer 26

Elements

Question 27

What are Elements?

Answer 27

Elements are the simplest form of matter with unique physical and chemical properties and it may contain one or two atoms of the same elements that are bonded together

Question 28

What are the three types of Compounds

Answer 28

Acid, Base, and Salt

Question 29

What property does Heat conductivity belong to?

Answer 29

Physical - Intensive

Question 30

What property does Electrical capacity belong to?

Answer 30

Physical - Extensive

Question 31

What are the Physical properties among the following? 1. Malleability 2. Corrosiveness 3. Heat conductivity 4. Ability to decompose 5. Height 6. Boiling Point 7. Color 8. Mass 9. Flammability 10. Density

Answer 31

Malleability, Heat conductivity, Height, Boiling Point, Color, Mass, and Density

Question 32

Define physical properties

Answer 32

Characteristics of a substance that can be observed or measure without changing its composition or identity.

Question 33

Define chemical properties

Answer 33

Chemical properties refers to the ability of a substance to undergo a specific chemical change which results to the production of a completely new substance.

Question 34

Name a chemical change that an iron may go through

Answer 34

Rusting or Corrosion

Question 35

Property of matter that can be affected by the amount of substance

Answer 35

Extensive Property

Question 36

Is Ability to Rot an extensive or intensive property?

Answer 36

Walang tamang sagot, physical properties lang ang classified under extensive and intensive :>

Question 37

Property of matter wherein characteristics do not depend on the amount of matter present but on the composition of the sample.

Answer 37

Intensive Property

Question 38

Why is boiling point considered an Intensive Property?

Answer 38

Boiling point of water remains 100°C | even if you have 10-mL, 9L, or a large pool.

Question 39

TRUE OR FALSE The following are extensive properties: height, length, width, shape, and heat capacity, and heat conductivity

Answer 39

False - HEAT CONDUCTIVITY IS AN EXTENSIVE PROPERTY

Question 40

What is the difference of Property and Change

Answer 40

``` Property = Characteristics/Traits Change = Phenomena/Event ```

Question 41

What is Physical Change?

Answer 41

Phenomena that alters the state of the materials without changing its composition

Question 42

A phenomena that alters the composition of the substance creating a new substance with a different set of properties

Answer 42

Chemical Change

Question 43

TRUE OR FALSE? | Cutting of hair, grinding of nuts, molding of clay, and cracking an egg are some examples of physical change.

Answer 43

True

Question 44

What is Evaporation?

Answer 44

The process of separating homogenous mixtures that contains a volatile and a nonvolatile substance.

Question 45

Technique to separate out heterogeneous of immiscible substances using their difference in density with respect to gravity

Answer 45

Decantation

Question 46

What is Filtration?

Answer 46

technique to separate out heterogeneous mixtures of insoluble solid + liquid substances using their difference in size and gravity

Question 47

What is Sieving

Answer 47

process of separating a solid-solid mixture using a | mesh which makes use of their difference in size/shape.

Question 48

What is Winowing?

Answer 48

Separate solid + solid mixture (heterogeneous) using wind and different weight

Question 49

It is used to separate mixtures containing metals with the use of magnetism (must be ferromagnet)

Answer 49

Magnetism

Question 50

Technique that uses centrifugal force to separate substance based on shape and density of particles viscosity of the medium

Answer 50

Centrifugation

Question 51

Process of separating mixtures of dissolved substances by passing it in solution or suspension or as a vapor through a medium in which components move at different rates.

Answer 51

Paper Chromatography

Question 52

It is a two phase change process wherein it separated out homogeneous mixtures containing two miscible substances using their difference in volatility

Answer 52

Distillation

Question 53

Boiling Water: Evaporation; Rice and Water (pag magsasaing):

Answer 53

Decantation

Question 54

Separation technique that uses porous barrier that traps the bigger and larger solids

Answer 54

Sieving

Question 55

Both substance can be harnessed in Distillation - True or False

Answer 55

True (2 phase)

Question 56

Paper Chromatography: Chromatography; Coffee:

Answer 56

Filtration

Question 57

Give an example of winnowing

Answer 57

Yung mga magsasaka tinatanggal palay from bigas

Question 58

3 types of Elements

Answer 58

Metals, non-metals, and metalloid

Question 59

It asks the question whether it is affected by the amount of substance

Answer 59

Extensive/Intensive

Question 60

The composition is uniform althroughout

Answer 60

Homogeneous

Question 61

CUTE BA KO

Answer 61

YES

Question 62

Device used in Centrifugation

Answer 62

Centrifuge