Study sets matching "2a chemistry"

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Study sets matching "2a chemistry"

Chemistry - 2A
Matter
Density
Malleability
Ductility
Anything that occupies space or has mass.
The amount of matter packed into the space they occupy.
Materials that can be hammered easily into shapes or thin she…
Materials that can be drawn into long, thin wires are ductile.
Matter
Anything that occupies space or has mass.
Density
The amount of matter packed into the space they occupy.
85 terms
Chemistry 2A
atomic number
Mass Number
isotopes
Molecular Compound
is the number of protons in the nucleus of an atom of that el…
total number of protons and neutrons in its nucleus. It refer…
same number of protons but different number of neutrons
molecules consisting of nonmetal atoms attracted by covalent…
atomic number
is the number of protons in the nucleus of an atom of that el…
Mass Number
total number of protons and neutrons in its nucleus. It refer…
95 terms
Chemistry-2A
What do atoms contain?
what does the atomic number tell you?
What do atoms of the same element have?
what do atoms of a different element h…
protons... neutrons ... electrons
how many protons there are
same number of protons
different number of protons
What do atoms contain?
protons... neutrons ... electrons
what does the atomic number tell you?
how many protons there are
15 terms
Chemistry 2A
Matter
Pure Substances
Elements
Compounds
anything that takes up space and has mass
-matter that only contains 1 type of material... -if you reach i…
-pure substance composed of a single type of atom... -anything o…
-PURE SUBSTANCE composed of 2 or more types of elements... -can…
Matter
anything that takes up space and has mass
Pure Substances
-matter that only contains 1 type of material... -if you reach i…
Chemistry 2A
Dalton's atomic theory
Law of definite proportions
Law of multiple proportions
Law of conservation of mass
1) elements are composed of atoms. 2) atoms of same element a…
a given compound always contains exactly the same proportion…
whenever two elements form more than one compound, the differ…
Matter is not created nor destroyed in any chemical or physic…
Dalton's atomic theory
1) elements are composed of atoms. 2) atoms of same element a…
Law of definite proportions
a given compound always contains exactly the same proportion…
Chemistry Ch. 2/Sec. 2A
matter
physical properties
density
malleability
anything that occupies space and has mass; the basic building…
determined by how the particles that compose the material rel…
the amount of matter packed into a given volume
shapeable; materials that can be hammered easily into shapes…
matter
anything that occupies space and has mass; the basic building…
physical properties
determined by how the particles that compose the material rel…
Chemistry 2A
isotopes
Drawing an atom
Compound
forces in an atom
different atomic forms of the same element, which have the sa…
Include protons and neutrons in the middle of the diagram
Are formed when atoms of two or more elements are chemically…
- the closer the electrons (outer shell) to the nucleus the s…
isotopes
different atomic forms of the same element, which have the sa…
Drawing an atom
Include protons and neutrons in the middle of the diagram
10 terms
Chemistry 2A
NaCl
NH3
NH4
SO4
Sodium Chloride... sodium chloride (salt)
Ammonia
Ammonium
Sulfate
NaCl
Sodium Chloride... sodium chloride (salt)
NH3
Ammonia
Chemistry 2A Chemical Foundations
atom
electrons
protons
neutrons
the smallest particle of an element that retains its identity…
negatively charged subatomic particles
positively charged subatomic particles
subatomic particles with no charge
atom
the smallest particle of an element that retains its identity…
electrons
negatively charged subatomic particles
27 terms
Chemistry 2a
Mass number
Atomic number
Compounds
Isotopes
Total number of protons and neutrons
Number of protons and electrons
Compunds are formed when atoms of two or more elemer are chem…
Isotopes are different atomic forms of the same element, whic…
Mass number
Total number of protons and neutrons
Atomic number
Number of protons and electrons
19 terms
chemistry 2A
matter
pure substance
element
compound
anything that has mass and takes up space
a substance where every particle (eitheratom or molecule) is…
pure substance made of only ONE type of atom (the elements ar…
pure substance made of 2 or more different elements combined…
matter
anything that has mass and takes up space
pure substance
a substance where every particle (eitheratom or molecule) is…
23 terms
Chemistry 2a
The mass number
The atomic number
Isotope
Ionic bonding
Total number of protons and neutrons
Number of protons
Same number of protons,different number of neutrons
Transferring electrons
The mass number
Total number of protons and neutrons
The atomic number
Number of protons
10 terms
Chemistry 2A
Matter
Physical Property
Chemical Property
Physical change
Anything that occupies space and had mass. Came out of nothin…
Determined by how the particles that make up matter relate to…
A property of matter that describes how one substance reacts…
A change that alters the properties of a substance, but doesn…
Matter
Anything that occupies space and had mass. Came out of nothin…
Physical Property
Determined by how the particles that make up matter relate to…
22 terms
chemistry - 2A
international system (SI)
international system is also known as...
length
base unit for length
measuring system used in science
...metric system
distance between two points
meter
international system (SI)
measuring system used in science
international system is also known as...
...metric system
33 terms
Chemistry 2A
Matter
Ex nihilo
Physical property
Density
Anything that occupies space and has mass
Matter was created from nothing
Any property of matter that can be observed or measured witho…
The amount of matter packed into a given volume
Matter
Anything that occupies space and has mass
Ex nihilo
Matter was created from nothing
44 terms
Chemistry 2a
Proton mass
Neutron mass
Electron mass
Compounds
1
1
Very small.
Atoms of two or more elements that are chemically bonded toge…
Proton mass
1
Neutron mass
1
Chemistry 2A
ΔEN is the...
ΔEN=
ΔEN is always...
Most bonds are a blend of...
Difference in Electronegativity
Larger EN-Smaller EN
Positive
Ionic and Covalent characteristics
ΔEN is the...
Difference in Electronegativity
ΔEN=
Larger EN-Smaller EN
38 terms
Chemistry (2a)
Mass number
Atomic number
Isotope
Ionic bonding
Na - 23. Total no. Of protons and neutrons combinesd
No. Of protons and electrons
Types of Elements that have the SAME no. Of protons but diffe…
Atoms gain or lose electrons to form charged particles which…
Mass number
Na - 23. Total no. Of protons and neutrons combinesd
Atomic number
No. Of protons and electrons
Chemistry 2a
Mass number
Atomic number
Isotope definition
Ionic compounds are held together by
Total mass of protons and neutrons
Number of protons
Different atomic forms of the same element, which have the sa…
Electrostatic forces between oppositely charged ions, in all…
Mass number
Total mass of protons and neutrons
Atomic number
Number of protons
44 terms
Chemistry 2a
Different atomic forms of the same ele…
Very small
Giant ionic lattice, a regular lattice…
High melting and boiling points due to…
What is an isotope?
What is the mass of an electron?
What structure do ionic compounds have?
What properties do ionic compounds have?
Different atomic forms of the same ele…
What is an isotope?
Very small
What is the mass of an electron?
68 terms
Chemistry 2a
What are isotopes?
What is ionic bonding?
What is the aim when transferring/ sha…
Elements at opposite sides of the peri…
Different atomic forms of the same element which have the sam…
When atoms lose or gain electrons to form oppositely charged…
To gain the structure of a noble gas by having a full outer s…
...they need to lose/gain the same number of electrons
What are isotopes?
Different atomic forms of the same element which have the sam…
What is ionic bonding?
When atoms lose or gain electrons to form oppositely charged…
Chemistry 2a
What's the magic formula when calculat…
What is the atomic number?
What is the mass number?
What does ionic bonding mean?
Percentage mass of an element in a compound = a(r) * no. of a…
It is the bottom number and is the number of protons
It is the top number and total number of protons and neutrons
Transferring electrons
What's the magic formula when calculat…
Percentage mass of an element in a compound = a(r) * no. of a…
What is the atomic number?
It is the bottom number and is the number of protons
Chemistry 2a
What are compounds?
What are isotopes?
What is ionic bonding?
A shell with one or two electrons want…
Compounds are made when atoms of two or more elements are che…
They are atoms of the same element which have the same number…
When atoms loose or gain electrons.
Gains, loose
What are compounds?
Compounds are made when atoms of two or more elements are che…
What are isotopes?
They are atoms of the same element which have the same number…
Chemistry 2a
What is an Element?
How many groups are there in the perio…
What is the mass number of an element?
What is the atomic number?
Each of more than one hundred substances that cannot be chemi…
18 groups which include the transition metals, alkali metals,…
The mass number (A), also called atomic mass number or nucleo…
The atomic number is the number of protons, and overall the t…
What is an Element?
Each of more than one hundred substances that cannot be chemi…
How many groups are there in the perio…
18 groups which include the transition metals, alkali metals,…
55 terms
Chemistry 2A Test
Name three lad safety rules
What do you use a beaker for?
What is an evaporating dish?
What is an Erlenmeyer flask?
Always wear shoes, Don't smell chemicals, Always wear safety…
Holding liquids
A dish used to evaporate small amounts of liquid
the triangular shaped alsk
Name three lad safety rules
Always wear shoes, Don't smell chemicals, Always wear safety…
What do you use a beaker for?
Holding liquids
Chemistry 2a
The mass number
Atomic number
Mass of particles
Compounds
Top number... Total number of protons and neutrons
Bottom number... Number of protons
Protons = 1... Neutrons = 1 ... Electron = very small
Formed when atoms of two or more elements are chemically comb…
The mass number
Top number... Total number of protons and neutrons
Atomic number
Bottom number... Number of protons
Chemistry 2a
Compounds
Isotope
Ionic bonding
Ionic compounds
Compounds are formed when atoms of two or more elements are c…
Different atomic forms of the same element, which have the sa…
Transferring electrons
Regular lattice structure
Compounds
Compounds are formed when atoms of two or more elements are c…
Isotope
Different atomic forms of the same element, which have the sa…
29 terms
Chemistry 2A
The sublevels
The number of orbitals each sublevel has
The number of possible electrons each…
How to find Quantium numbers
S, P, D, F
S- 1 orbital... P- 3 orbitals... D- 5 orbitals... F- 7 orbitals
S- 2 electrons... P- 6 electrons... D- 10 electrons... F- 14 electrons
n- the energy level it is in... l- the sublevel it is in (s-0,p-…
The sublevels
S, P, D, F
The number of orbitals each sublevel has
S- 1 orbital... P- 3 orbitals... D- 5 orbitals... F- 7 orbitals
Chemistry2A
kinetic molecular theory
expandability
fluidity
low density
gases take up empty space... gas collisions transfer kinetic ene…
takes up the space of its container
gas flows
gas particles aren't packet together
kinetic molecular theory
gases take up empty space... gas collisions transfer kinetic ene…
expandability
takes up the space of its container
29 terms
2A Chemistry
pressure
force
area
as force increases...
force applied over some area... FORECE DIVIDED BY AREA
a measurement that depends on mass and acceleration (somethin…
L x W... measure in square meters
pressure increases (directly proportional)
pressure
force applied over some area... FORECE DIVIDED BY AREA
force
a measurement that depends on mass and acceleration (somethin…
Chemistry 2a
ATOMIC NUMBER
MASS NUMBER
NEUTRONS
ISOTOPES
number of protons
protons + neutrons
mass number - atomic number
different atomic forms of the same element, which have the sa…
ATOMIC NUMBER
number of protons
MASS NUMBER
protons + neutrons
41 terms
Chemistry 2a
Matter
states of matter
what is mass equal to
What is all matter composed of?
anything that occupies space and has mass
liquid, solid, gas
the actual amount of matter in the object
Elements
Matter
anything that occupies space and has mass
states of matter
liquid, solid, gas
56 terms
Chemistry 2A Final Flashcards
Thomson's Experiment
Milliken's Oil-Drop Experiment
Rutherford's Gold Foil Experiment
Atomic number
Experiment proved that cathode rays are a stream of electrons…
Experiment where a spray of ionized oil droplets were acted u…
Disproved the plum pudding model by showing that a beam of al…
Z --> number of protons in nucleus
Thomson's Experiment
Experiment proved that cathode rays are a stream of electrons…
Milliken's Oil-Drop Experiment
Experiment where a spray of ionized oil droplets were acted u…
Chemistry 2a
Different atomic forms of the same ele…
Because there are electrostatic forces…
There are a great electrostatic forces…
When the ionic structure is molten the…
Explain what is meant by the term isotope
Once formed explain why the ions remain together in a compound
Explain why giant ionic structures do not melt easily
Explain why giant ionic structures conduct electricity when m…
Different atomic forms of the same ele…
Explain what is meant by the term isotope
Because there are electrostatic forces…
Once formed explain why the ions remain together in a compound
Chemistry 2a, ionic bonding
what happens to electrons during ionic…
what happens in ionic bonding?
which groups in the periodic table are…
what is an ion?
electrons are transferred
atoms LOSE OR GAIN ELECTRONS... to form CHARGED PARTICLES called…
1 and 7, their outer shells are nearly full of electrons
an ELECTRICALLY CHARGED PARTICLE... formed when ATOMS LOSE OR GA…
what happens to electrons during ionic…
electrons are transferred
what happens in ionic bonding?
atoms LOSE OR GAIN ELECTRONS... to form CHARGED PARTICLES called…
Chemistry 2A
Name the 7 strongest acids
Name the 8 strongest bases
Product of a combustion reaction
How can you determine sigma and pi bon…
HCl, HBr, HI, H2SO4, HNO3, HClO4, HClO3
LiOH, RbOH, KOH, NaOH, CsOH, Sr(OH)2, Ca(OH)2, Ba(OH)2
Carbon Dioxide and Water (CO2 + H2O)
One single bond= one sigma bond... One double bond= one sigma, o…
Name the 7 strongest acids
HCl, HBr, HI, H2SO4, HNO3, HClO4, HClO3
Name the 8 strongest bases
LiOH, RbOH, KOH, NaOH, CsOH, Sr(OH)2, Ca(OH)2, Ba(OH)2
Chemistry 2a
What does the mass number represent?
What does the atomic number represent?
What is a compound?
Define he term isotope?
The number of protons and neutrons in an atom.
The number of protons in an atom
Compounds are formed when two or more atoms are chemically co…
Isotopes are different atomic forms of the same element which…
What does the mass number represent?
The number of protons and neutrons in an atom.
What does the atomic number represent?
The number of protons in an atom
8 terms
Chemistry 2a
What are thermosetting polymers?
What are thermosoftening plastics?
How do you make low density polythene?
How do you make high density polythene?
Plastics whose chains are held together by strong crosslinks.…
Plastics whose polymer chains are not held together and can s…
Heat at high temperature and pressure
heat at lower temperature and pressure in the presence of a c…
What are thermosetting polymers?
Plastics whose chains are held together by strong crosslinks.…
What are thermosoftening plastics?
Plastics whose polymer chains are not held together and can s…
33 terms
Chemistry 2a
why do ionic compounds have high melti…
why do ionic compounds conduct electri…
what is an ion
why do covalent compounds have a low m…
-strong electrostatic attraction between + and - ions... -so lot…
ions are free to move around AND carry charge
-full outer shell... -positive or negative charge... -lose/gain ele…
-weak intermolecular forces... -molecules can be easily separated
why do ionic compounds have high melti…
-strong electrostatic attraction between + and - ions... -so lot…
why do ionic compounds conduct electri…
ions are free to move around AND carry charge
C2a Chemistry AQA
Mass number
Atomic number
Compound
Isotope
Total number of protons and neutrons
Number of protons
Contains 2 or more types of atoms chemically joined together
Different atomic forms of the same element, which have the sa…
Mass number
Total number of protons and neutrons
Atomic number
Number of protons
19 terms
Chemistry 2A
Define 'Isotope'
What is ionic bonding?
Give properties of ionic bonds.
What is covalent bonding?
Different atomic forms of the same element, which have the SA…
Bonding between metals and non-metals. The metal atoms give e…
-High melting and boiling points... -Strong electrostatic forces…
Non-metal atoms share electrons between themselves.
Define 'Isotope'
Different atomic forms of the same element, which have the SA…
What is ionic bonding?
Bonding between metals and non-metals. The metal atoms give e…
Chemistry 2a Covalent structures
Covalent structures:
Examples:
Diamond:
Graphite:
Are atoms that share electrons and can also form giant struct…
Diamond and graphite (forms of carbon), and silicon dioxide (…
Is hard.
Layers are free to slide over each other because there Are no…
Covalent structures:
Are atoms that share electrons and can also form giant struct…
Examples:
Diamond and graphite (forms of carbon), and silicon dioxide (…
8 terms
2A chemistry vocab
Pressure
Atmospheric Pressure (atm)
Charles' Law
Force
force applied per unit area; in SI, pressure is expressed in…
the pressure exerted by the weight of the atmosphere
the volume of a gas sample at constant pressure is directly p…
a push or pull exerted on an object; expressed by the newton,…
Pressure
force applied per unit area; in SI, pressure is expressed in…
Atmospheric Pressure (atm)
the pressure exerted by the weight of the atmosphere
35 terms
Chemistry 2a Quiz
Democritus
Robert Boyle
Joseph Priestley
Joseph Proust
Proposed that elements are composed of tiny particles, atoms…
First to study chemistry is a separate discipline and carry o…
Isolated oxygen
Different samples of a pure chemical substance voice contains…
Democritus
Proposed that elements are composed of tiny particles, atoms…
Robert Boyle
First to study chemistry is a separate discipline and carry o…
Chemistry 2A- Conversions
Meter to Decimeter
Meter to Centimeter
Meter to Millimeter
Meter to Dekameter
10^1
10^2
10^3
10^-1
Meter to Decimeter
10^1
Meter to Centimeter
10^2
8 terms
Chemistry 2A Vocabulary
independent variable
Boyle's law
newton
atmospheric pressure
variable that is manipulated by the investigator during an ex…
the pressure and volume of a gas sample at constant temperatu…
SI unit of force that is roughly equal to the force exerted b…
Si unit: 1atm = 101.3 kPa
independent variable
variable that is manipulated by the investigator during an ex…
Boyle's law
the pressure and volume of a gas sample at constant temperatu…
101 terms
chemistry 2a quiz
at the top
the number of protons/ which atom it is
the amount of protons and neutrons
negligible
where is the mass number located?
what does the atomic number tell you?
what does the mass number tell you?
what is the mass of an electron?
at the top
where is the mass number located?
the number of protons/ which atom it is
what does the atomic number tell you?
21 terms
Chemistry 2.2a Midterm
thermal conductivity
electrical conductivity
transitivity
ductility
the rate at which thermal heat passes through a specified mat…
the rate at which electric heat passes through a specified ma…
the degree at which a medium allows something to pass through…
a solid material's ability to deform under tensile stress; of…
thermal conductivity
the rate at which thermal heat passes through a specified mat…
electrical conductivity
the rate at which electric heat passes through a specified ma…
65 terms
Chapter 2A- The Chemistry of Life
atom
nucleus
electron
element
basic unit of matter
The center of the atom which contains the protons and neutrons.
A negatively charged particle; located outside the atomic nuc…
A substance consisting entirely of one type of atom.
atom
basic unit of matter
nucleus
The center of the atom which contains the protons and neutrons.
6 terms
Chemistry Elements 2A
Be
Mg
Ca
Sr
Beryllium
Magnesium
Calcium
Strontium
Be
Beryllium
Mg
Magnesium
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