問題一覧
1
All ____ is particulate in nature
Matter
2
Composed of tightly packed particles
Solid Matter
3
Made of more loosely packed particles
Liquid Matter
4
A fluid that flows around a magnetic rod or core which attracts ferrous particles
Magnetic Filtration
5
Most basic form from filtration is using gravity to filter a mixture
General Filtration
6
The process of seperating suspended solid matter from a liquid
Filtration
7
A method used by scientists for seperating organic and inorganic compounds so that hey can be analyzed and studied
Chromatography
8
Method of Seperating Mixtures
Magnet , Filter, Decant, Evaporation , Centrifuge , Chromatography , Distillation
9
One of the distinct form in which matter can exist
State of Matter
10
What is the fourth state of matter?
Plasma
11
______ is an ionized gas, a gas into which sufficient energy is provided to free electrons from atoms or molecules
Plasma
12
Ch 2 It involves assigning numbers to characteristics of objects or events in such a way that the numbers reflect reality
Measurements
13
Ch 2 What are the four different types of measurement scales?
Nominal, Ordinal, Interval, Ratio
14
Ch 2 Is how close measure values are to each other.
Precision
15
Is how close a measure value is to the true value.
Accuracy
16
Ch 2 Are the number of digits in a value, often a measurement
Significant figures
17
Ch 2 What are the 3 types of errors?
Static Error, Instrument Loading Error, Dyamic Error
18
All mater is made up of tiny particles called ____.
Atoms
19
Ch 3 What is the 3 basic law of matter?
Law of Conservation of mass, Law of definite proportions , Law of multiple proportions
20
Ch 3 Is two or more elements can combine to form different compounds in whole-number ratio
Law of Multiple Proportions
21
Ch 3 In atomic physics and quantum chemistry, the election configuration is the distribution of electrions of an atom or molecule
Atomic Structure
22
Ch 3 A subatomic particle, symbol e- or B-, whose electric charge is negative one elementary charge.
Electron
23
Ch 3 Who discovered a subatomic particle called Electron?
J.J. Thomson
24
Ch 3 Is a subatomic particle, symbol p or p+, with a positive electric charge of +1e elementary charge and a mass slightly less than that of a neutron.
Proton
25
Who discovered the subatomic particle called Proton?
Ernest Rutherford
26
A subatomic particle, symbol n or n°, with no electric charge and a mass slightly greater than that of a proton
Neutron
27
Ch 3 Are neutral particles made of two or more atoms bonded together
Molecule
28
Ch 3 Is a positively or negatively charged particle
Ion
29
Two types of Ion
Cation, Anion
30
Ch 3 Ion that losses e-
Cation
31
Ch 3 Are the elements that have the same atomic no. but different atomic mass
Isotopes
32
Ch 4 Is the calculation of reactants and products in chemical reactions
Stoichiometry
33
Ch 4 Used as the bridge between chemistry on the atomic and macroscopic scale
Atomic Mass
34
Ch 4 Applies to all kinds of particles: atoms, molecules, ions, formula units etc.
The Mole Concept
35
Ch 4 Is calculated from a molecular formula by dividing the mass of a element in one mole of a compound by the mass of one mole of the entire compound
Percent Composition