問題一覧
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-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
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- 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
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- 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
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Depends on the amount also called________ Ex: weight height temperature size shape volume etc.
Extrinsive Properties
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- The properties of matter which are constant - give the characteristics of the substance its unique identity
Intrinsic Property
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those which do not depend on the amount also called________ Ex: boiling point freezing point melting point viscosity retractive index etc
Intrinsive Properties
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- 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
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Pure substance - simplest form of substance that cannot be decomposed by chemical means - building blocks of matter
Elements
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Pure substance a. element Elements characterized by their brilliant luster ductility malleability and are good conductors and head and electricity
Metals
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Pure substance a. element Possess the characteristics opposite of metals
Non-metal
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Pure substance a. element Elements which possess the characteristics of both metals and nonmetals
Metalloids
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Pure substance Are substances whose molecules are made up of two or more kinds of atoms combined in definite proportions
Compounds
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- Compose of two or more substances
Mixture
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- 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
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- 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
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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