stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chemistry Flashcards | StudBud
Explore
/
Chemistry
Chemistry
27 terms
·
StudBud Administration
·
4,408 plays
Atoms/periodic table, chemical reactions, compounds, pure substances, and mixtures
Flashcards
27 cards
F
Practice quiz
P
Host live
L
Questions
27
Answers
1
Occur when atoms gain/lose electrons, and then bond due to a magnetic attraction
Bonds
Covalent bonds
Ionic bonds
Valence electrons
2
Conducted his famous “gold foil” experiment to revolutionize the theory of atomic structure
Mickey Mouse
Niels Bohr
Ernest Rutherford
Demitri Mendeleev
3
A measure of mass per unit of volume.
Volume
Density
Mass
Stuff
4
A way of showing atomic structure with electrons in different energy levels
Map
Bohr model
Double helix
Periodic table
5
Negatively charged particles found in the electron cloud.
Grapes
Neutrons
Protons
Electrons
6
A mixture where the components that make up the mixture are evenly distributed throughout
Heterogeneous mixture
Separating mixtures
Homogeneous mixture
Pure substance
7
Process that leads to the transformation of one set of chemical substances to another
Chemical Reaction
Physical reaction
Precipitate
Change
8
Physical reactions occur when bonds between atoms are broken and reformed.
True
False
9
In the bohr model there are __ electrons in the first shell and __ electrons in the second
1,2
2,4
4,8
2,8
10
Used to separate homogenous liquids by removing the water through evaporation
Centrifugation
Distillation
Filtration
sifting
11
Creation of a solid in a solution during a chemical reaction
Chemical change
Precipitate
Solid
Sand
12
The dense center of the atom containing protons and neutrons
Electron cloud
Atomic mass
Closet
Nucleus
13
The number of protons and electrons in the atom
Atomic Mass
Atomic mass unit
Atomic number
Protons
14
Periodic table- elements based on atomic number, electron configuration and chemical properties
True
False
15
A compound is one atom bonded to itself
False
True
16
A mixture where the components are not uniform
Homogeneous mixture
Separating mixtures
Heterogeneous mixture
Pure substances
17
Positively charged particles found in the nucleus
Neutron
Electron
soap
Proton
18
Occur when atoms share electrons between each other
bonds
Ionic bonds
Covalent bonds
Valence electrons
19
Large region outside of an atom containing electrons.
Nucleus
Electron cloud
Proton
Atom
20
A substance that contains only one thing
Homogeneous mixture
Separating mixtures
Pure substances
Heterogeneous mixture
21
Russian Chemist who formulated
periodic law
and created the first version of the
periodic table
Demitri Mendeleev
Issac Newton
Neils Bohr
Antoine Lavosie
22
A rapid spinning of liquids causes them to separate out by their mass
Sifting
Distillation
Centrifugation
Filtration
23
An element is a single atom by itself
True
False
24
Signs of a chemical reaction:
Light, heat, or sound produced
Boiling
Formation of a Gas
Formation of a Precipitate
25
Electrons that rest in the outer most energy level of an atom
Bonds
Electron Cloud
Precipitate
Valence electrons
26
Used to separate liquids from solids by pouring them through an appropriate filter
Filtration
Distillation
Sifting
Centrifugation
27
The smallest unit of matter that contains two basic parts
Electron cloud
Neutron
Atom
Nucleus