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  • Jelsey David

  • 問題数 74 • 10/9/2024

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    問題一覧

  • 1

    -Used to produce an open flame -5 cm (2 inches)

    Alcohol lamp

  • 2

    -Suction are moving collecting materials by suction - vacuum by using the venturi effect

    Aspirator (Filter pump)

  • 3

    - Container used to heating and stirring liquids - cylindrical shape with a flat bottom

    Beaker

  • 4

    - Produces a single open glass flame - use for heating sterilization and combustion

    Bunsen burner

  • 5

    - Graduated glass tube with a top at one end - for delivering known volumes -titration

    Burette

  • 6

    Used for firmly holding test tubes burette and glassware

    Burette clamp

  • 7

    Wire and ceramic triangle to support a cubicle while it is heated over a bunsen burner

    Clay triangle

  • 8

    - Used to condense vapours back to liquid - used in distillation

    Condenser

  • 9

    Used to hold reactants during heating and higher temperatures

    Crucible and cover

  • 10

    Used to separate mixtures of two liquids with different boiling points

    Distilling flask

  • 11

    Used to suction liquids in and out of the device

    Medicine dropper

  • 12

    - Emul Elenmeyer - allow the contents of the flask to be mixed by swirling

    Erlenmeyer flask (conical/filtration flask)

  • 13

    - Used to heat and consequently evaporate liquids - increase a liquids concentration

    Evaporating dish

  • 14

    Used to channel liquid or fire grained substances into containers with a small opening

    Funnel

  • 15

    -Used to measure the volume of a liquid - marked line on the _____

    Graduated cylinder

  • 16

    - Used to secure an extension type utility clamp to a support stand or ring stand - used in some instance to clamp a couple of support rods together

    iron clamp

  • 17

    - Used to support flask or funnels

    Iron ring

  • 18

    Used to provide support for the equipment

    Iron stand

  • 19

    Used to grind and mix substances

    Mortar and Pestle

  • 20

    Used to transfer measurable amount of liquid

    Pipette

  • 21

    Use the transfer a single specific volume of liquid

    Volumetric pipette

  • 22

    Used to transfer varying measured volumes

    Measuring pipette

  • 23

    Used to weighing objects

    Platform balance

  • 24

    Used to put in chemical substances solutions or solvents

    Reagent bottle

  • 25

    - ideal for removing chemicals or compounds from small bottles - used to scrape away

    Spatulas

  • 26

    Consists of many cavity like depression in which only small amounts of reactants can be added at a time

    Spot plate

  • 27

    Mix/stir liquids - used for decanting (pouring off) a liquid

    Stirring rod

  • 28

    - hold small quantities of chemicals - can hold liquid or solid chemicals - used to contains small chemical reactions

    Test tube

  • 29

    Used to clean out of bottom of a test tube

    Test tube brush

  • 30

    - Use when heating the test tube - when caustic material are being handled

    Test tube holder

  • 31

    - Use for holding test tube upright when they contain chemical - hold test tube upside down to dry

    Test tube rack

  • 32

    - Utilizes the expansion and contraction of alcohol in response to temperature change to measure the temperature - Measure the body temperature

    Thermometer

  • 33

    - Consisting of mercury in a glass tube

    Mercury thermometer

  • 34

    - Used to support and hold various flask beakers and glassware when not in use

    Tripod

  • 35

    - A type of scale - uses counterweights on a three rider beams to counterbalance the sample in the pan

    Triple beam balance

  • 36

    Used to store medication as liquid powders or capsule

    Vials (Piial/Flacon)

  • 37

    -Use as a surface to evaporate a liquid in chemical - holds solid while being weighed - acts as a covert for a beaker - applied to prevent dust or other particles, from entering the beaker

    Watch glass

  • 38

    Separation of solid and liquid substances with the use of a filter paper

    Filtration

  • 39

    Process of letting the mixture, sit and allowing the bigger particles to settle at the bottom

    Decantation

  • 40

    Measurement of length

    ruler vernier caliper

  • 41

    Measurement of volume

    beaker graduated cylinder pipette

  • 42

    Measurement of weight

    analytical balance triple beam balance

  • 43

    To read the volume of colored liquid

    upper meniscus

  • 44

    to read the volume of a colorless liquid

    lower meniscus

  • 45

    Quantity of matter in a liquid regardless of its volume of or any forces acting on it

    Mass

  • 46

    The amount of space that a substance or object occupies

    Volume

  • 47

    Curve upper surface of a liquid in a tube

    Meniscus

  • 48

    Degree of consistency measured by the quantity of mass per unit volume

    Density

  • 49

    A body's relative mass or the quantity of matter contained by it

    Weight

  • 50

    - constant at any place and time - refers to the amount of the substance - when traveled to the moon the ____ of an object will still be the same - can never be a zero

    Mass

  • 51

    - varies, depends on the amount of gravity - refers to the download full of the objects towards the center of the earth - when travel to the moon the ____ of an object will only be 1/6 of its &____ on earth - can also be zero

    Weight

  • 52

    - The physical properties of matter which may vary from time to time - Not the characteristics of the substance itself

    Extrinsic Property

  • 53

    Depends on the amount also called________ Ex: weight height temperature size shape volume etc.

    Extrinsive Properties

  • 54

    - The properties of matter which are constant - give the characteristics of the substance its unique identity

    Intrinsic Property

  • 55

    those which do not depend on the amount also called________ Ex: boiling point freezing point melting point viscosity retractive index etc

    Intrinsive Properties

  • 56

    - Kind of matter processing definite fixed and unvarying composition with unique set of properties - are made up of only one kind of matter

    Pure Substance

  • 57

    Pure substance - simplest form of substance that cannot be decomposed by chemical means - building blocks of matter

    Elements

  • 58

    Pure substance a. element Elements characterized by their brilliant luster ductility malleability and are good conductors and head and electricity

    Metals

  • 59

    Pure substance a. element Possess the characteristics opposite of metals

    Non-metal

  • 60

    Pure substance a. element Elements which possess the characteristics of both metals and nonmetals

    Metalloids

  • 61

    Pure substance Are substances whose molecules are made up of two or more kinds of atoms combined in definite proportions

    Compounds

  • 62

    - Compose of two or more substances

    Mixture

  • 63

    - always have a definite composition by weight - preparation shows evidence of chemical action taking place - components can be separated by chemical means - constituent can be separated by chemical means - compose of two or more substances that are chemically combined

    Compounds

  • 64

    - components may be present in any proportions - it is prepared with no evidence of any chemical reaction taking place -components do not lose identity - components may be separated by mechanical means -Composed of two/more substances, that are not chemically combined.

    Mixtures

  • 65

    Uses the filtration setup; includes filter paper funnel iron ring and iron stand works with particles that are significantly different in size sand and rock with water

    Filtration

  • 66

    Can also be used if two liquids are mixed but have different boiling points

    Distillation

  • 67

    Process rely on density. Separates constituent by the difference in their weights

    Centrifugation

  • 68

    Is similar, but it happens when particles of different densities have settled within a liquid

    Sedimentation

  • 69

    - Change in the physical properties of substance without changing its chemical composition - no new substance is produced, although there may be a change in state or density or both.

    Physical change

  • 70

    - Change in the chemical composition and constitution of the substance - original identity of the substance and its properties are altered - change in which at least one substance changes composition forming new substances

    Chemical change

  • 71

    - to rigidity hardness mechanical strength - definite size shape and volume - exerts vapor pressure - sublimation

    Solid

  • 72

    - Definite volume and definite shape, follows the shape of the container - Constant boiling points - viscosity - evaporation - vaporation - volatility - surface tension - density

    Liquid

  • 73

    - No definite shape size and volume - expands when heated - exerts pressure - high compressibility - diffusibility

    Gas

  • 74

    Uses - best electrical conductor - consists of ionized gases General method to produce ___ - cascade process - thermal ionization process

    Plasma