Introduction To Chemistry

Front 1

The study of ______ ( Structures & properties) and the _______ ( transformations & energy) it undergoes.

Back 1

Matter , Changes

Front 2

(5) five main branches of chemistry

Back 2

- Organic chemistry

- Inorganic chemistry

- Analytical chemistry

- Physical chemistry

- Biochemistry

Front 3

refers to how close measurementsof the same item are to each other.

Back 3

Precision

Front 4

refers to how close a measurement is to the true or accepted value.

Back 4

Accuracy

Front 5

Anything that has mass and takes up space (volume).

Back 5

Matter

Front 6

are the building blocks of matter.

Back 6

Atoms

Front 7

3 particulate Nature of Matter

Back 7

Atoms, Ions, Molecules

Front 8

Each______is made of the same kind of atom.

Back 8

Element

Front 9

A __________ is made of two or more different kinds of elements.

Back 9

Compound

Front 10

5 States of Matter

Back 10

- solid

- liquid

- gas

- plasma

- bose- Einstein condensate

Front 11

In a Modern Periodic table of elements, there are ________ natural and synthetic elements that have been discovered as of this day.

Back 11

118

Front 12

How many Metals are in the Modern Periodic table of Elements?

Back 12

94 Metals

Front 13

How many Non-Metals are in the Modern Periodic table of Elements?

Back 13

18

Front 14

How many Metalloids are in the Modern Periodic table of Elements?

Back 14

6

Front 15

What are the 6 metalloid elements?

Back 15

Boron (5) B, Silicon(14)Si, Germanium(32)Ge, Arsenic(33)As, Antimony(51)Sb, Tellurium(52)Te

Front 16

Compounds Containing Carbon

Back 16

Organic

Front 17

Compounds without carbon (exceptions: carbonates, CO2, CO, cyanides, carbides, bicarbonates)

Back 17

Inorganic compounds

Front 18

a combination of two or more substances in which the substances retain their distinct identities.

Back 18

Mixture

Front 19

the composition of the mixture is the same throughout (one phase).

Back 19

Homogeneous mixtures/ solution

Front 20

the composition of the mixture is NOT uniform (2 or more phases).

Back 20

Heterogeneous mixture

Front 21

Number 1?

Back 21

Stirring rod

Front 22

Answer No.2

Back 22

Iron stand

Front 23

Answer no. 3

Back 23

Mixture (mekus mekus

Front 24

Answer no. 4

Back 24

Filter paper

Front 25

Answer no. 5

Back 25

Funnel

Front 26

Answer no. 6

Back 26

Beaker( collection flask)

Front 27

Answer no. 7

Back 27

Filtrate

Front 28

A separation technique used to separate insoluble solids from the solvents.

Back 28

FILTRATION

Front 29

A separation technique used to separate soluble solids from the solvents

Ex. NaCl in water

Back 29

EVAPORATION

Front 30

A separation technique used to separate miscible liquids with significant boiling point differenceEx. Benzene and toluene

Back 30

DISTILLATION

Front 31

A separation technique used to separate two immiscible liquids using a separatoryfunnel.

Ex. Water and oil

Back 31

SOLVENT SEPARATION

Front 32

A separation technique used to separate residues from solvents in suspensionsEx. Water and mud

Back 32

DECANTATION

Front 33

is a technique used for the separation of particles to their size, shape,from a solution according density, viscosity of the medium and rotor speed.

Ex. Separation of blood

Back 33

CENTRIFUGATION

Front 34

is a technique used to separate magneticfrom nonmagnetic materialsEx. Separation of Iron Fillings from sand

Back 34

MAGNETISM

Front 35

is a technique used to components of a mixtureEx. Separation of colors in ink

Back 35

CHROMATOGRAPHY

Front 36

Must be observed without changing a substance into another substance. NO CHANGE IN COMPOSITION

Back 36

Physical Properties

Front 37

Can only be observed when a substance is changed into another substance. CHANGE IN COMP.

Back 37

Chemical properties

Front 38

4 types of Physical Properties

Back 38

•Density

•Thermal conductivity

• Solubility

•Magnetic properties

Front 39

A Physical Property which has the amount of mass in a given volume. It measures how compact the molecules are in a given space of substance (unit: g/ml).

Back 39

Density

Front 40

A Physical Property which has the ability of matter to transfer energy (HEAT) from one to another

Back 40

THERMAL CONDUCTIVITY

Front 41

moderate-low thermal conductivities (Metalloids: Si, Ge, etc.)

Back 41

SEMI-CONDUCTORS

Front 42

Have high thermal conductivities (metals: Cu, Al, Au, Ag, Co, W, etc.)

Back 42

CONDUCTORS

Front 43

have a very poor thermal conductivities (non metals: O, N, C, wood, wires, etc.)

Back 43

INSULATORS

Front 44

A Physical Property which has the measure of how much of a substance dissolves in a given volume of liquid. For example, sugar and sand, have a different solubilities in water.

Back 44

SOLUBILITY

Front 45

A Physical Property that pertains to how substances are attracted to magnet.

Back 45

MAGNETIC PROPERTIES

Front 46

A magnetic property which is attracted to magnet (Fe, steel, Co, Ni)

Back 46

FERROMAGNETIC

Front 47

A magnetic property which is not attracted to magnet (Cu, Al, Zn)

Back 47

NONFERROMAGNETIC

Front 48

Independent in the amount of matterthat is present in the system.

Back 48

Intensive Properties

Front 49

dependent in the amount of matter that is present in the system.

Back 49

Extensive Properties

Front 50

Give some examples of intensive properties

Back 50

DensityBoiling PointColorTasteOdorMelting point/Freezing pointMalleabilityDuctility Luster PotentialHardnessSolubility

Front 51

Give some examples of Extensive Properties

Back 51

MassLengthSizeVolumeInternal EnergyShapeEntropyHeat Capacity Enthalpy

Front 52

describe the substance's ability to change into new form with different properties. It involves chemical reaction, the conversion of matter to other type of matter.

Back 52

Chemical Properties

Front 53

3 Chemical Properties

Back 53

• Flammability • Combustibility • Reactivity

Front 54

- is the ease on with which material is ignited. Materials produces different flame colors depending on their chemical composition.

Back 54

FLAMMABILITY

Front 55

– ability to react with Oxygen gas in air to produce flame or explosion

Back 55

COMBUSTIBILITY

Note: not all combustion reactions produces flame or explosion.

Front 56

– ability to react with other elements to form new compound

Back 56

REACTIVITY

Front 57

Burning of scratched papers ( Flammability/Combustibility/ Reactivity)

Back 57

FLAMMABILITY

Front 58

Reaction of potassium in water. Is it ( Flammability/Combustibility/ Reactivity)

Back 58

REACTIVITY

Front 59

Coin soaked in vinegar. Is it ( Flammability/Combustibility/ Reactivity)?

Back 59

REACTIVITY

Front 60

Gasoline leaked in tank causing explosion.

Is it ( Flammability/Combustibility/ Reactivity)?

Back 60

Combustibility

Front 61

Put lighted matchstick over acetone.

Is it ( Flammability/Combustibility/ Reactivity)

Back 61

Flammability

Front 62

Burning of Diesel in your motorcycle.

Is it ( Flammability/Combustibility/ Reactivity)

Back 62

COMBUSTIBILITY

Front 63

Mixing Hydrochloric acid and Sodium Hydroxide.

( Flammability/Combustibility/ Reactivity)

Back 63

REACTIVITY

Front 64

Burning of dried leaves.

( Flammability/Combustibility/ Reactivity)

Back 64

FLAMMABILITY

Front 65

Natural gas was used to cook food. ( Flammability/Combustibility/ Reactivity)

Back 65

FLAMMABILITY

Front 66

Changes in matter that do not changethe composition of a substance.

Back 66

•Physical Change

Front 67

Changes in matter that change the composition of a substance.

Back 67

Chemical Change

Front 68

What are the (4) Chemical Change in matter

Back 68

-formation of precipitate(insoluble solid)

- formation of light (eg. flame)

- formation of gas

- formation of heat