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Chem Semester 1 Review Flashcards | StudBud
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Chem Semester 1 Review
Chem Semester 1 Review
23 terms
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A review of the 4 chapters of Chemistry
Flashcards
23 cards
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Practice quiz
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Host live
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Questions
23
Answers
1
Determine how many protons neutrons and electrons the atom magneium have
P:3N:6:E:3
P:11:N:12E:11
P:6N:3E:6
P:12N:12E:12
2
Which of the following is an example of a physical change?
your hair on fire
ice melting
fireworks exploding
car rusting
3
Which accurately describes nonmetals?
Shiny
Poor conductors of electricity
Always solid at room temperature
Both malleable and ductile
4
What is the gist of the Law of Conservation of Mass.
mass of reactants >mass of products
mass of products=mass of reactants
mass of reactans<mass of products
mass of products>mass of reactants
5
What do we call the penetrating rays and particles emitted by a radioactive source?
Microwaves
Radiation
Telephone waves
Radioactivity
6
Each horizontal row on the periodic table is called what?
Period
Group
7
The process where nuclei combine to produce a nucleus of greater mass.
Fission
Combining
Fusion
Spliting
8
Sample A and Sample B have the same volume. A has a > density than B. Which has a greater mass?
Sample A
Sample B
9
What is the objects length?
7.25cm
700cm
7cm
73cm
10
Anything that has mass and takes up space is called?
energy
oxygen
space
Matter
11
What kind of bond exists between H2O
Covalent
Ionic
12
What has a negative charge in an Atom?
Protons
elements
Electron
Neutron
13
The number of protons + neutrons in an atomic nucleus is referred to as what?
Chemistry number
Isotope number
Mass number
Atomic number
14
A solute is usually a solid, and a solvent is always a liquid.
True
False
15
This is the sharing of electrons
Ionic
Covalent
16
How is the periodic table organized?
Alphabetically
Increasing number of electrons
Based on physical and chemical properties
Most reactive to least reactive
17
The sharing of valence electrons is associated with
Ionic
Covalent
18
Which classification(s) of matter is(are) pure substances?
Elements
Compounds
Elements and Compounds
Mixtures and Compounds
19
42 19Ka → 42 20Ca + ?
0-1e
42He
73Li
0+1e
20
What is the crayons length
705cm
7.05in
7.05cm
.705cm
21
Which group of elements on the periodic table are all gases at room temperature?
Noble Gases
Metalloids
Halogens
Alkali metals
22
What is the name for NaF
Sodium Florida
Sodium Flouride
Flourine Sodium
Nitrogen Flouride
23
What does the atomic number identify?
The number of protons + neutrons of a given atom.
The number of protons of a given atom.
The number of elections of a given atom.
The number of neutrons of a given atom.
