Chemistry Vocabulary Words
1) Substance : A type of
matter with a fixed composition.
2) Element : If all
the atoms in a substance has the same identity it becomes {blank}.
3) Compound : A
substance in which the atoms of 2 or more elements are combined.
4) Heterogeneous Mixture : Mixture in which different materials can easily be distinguished.
5) Homogeneous Mixture : Contains 2 or more gases, liquids, or solids substances blended evenly.
6) Solution : Homogeneous
mixture with particles so small that they cannot be seen with a microscope.
7) Colloid : Type of
mixture with particles that are larger than those in solutions, but not heavy
enough to settle out.
8) Tyndall Effect : Scattering
of light by colloidal particles.
9) Suspension : Heterogeneous
mixture containing a liquid where visible particles settle.
10) Physical Property : Characteristic
of a material you can observe without changing the identity.
11) Physical Change : A change in size, shape, or state.
12) Distillation : A process
for separating substances by evaporating a liquid and recondensing its vapor.
13) Chemical Property : Characteristic of a substance that indicates whether it can undergo a
chemical change.
14) Chemical Change : A change of one substance to another.
15) Law of Conservation and Mass : The mass of all substances that are present before a
chemical change equals the mass of all the substances after the change.
16) Kinetic Theory : Explanation
of how particles in matter behave.
17) Melting Point : The point in
temperature when the solid starts to liquefy.
18) Heat of Fusion : The energy required to change a
substance from a solid to a liquid at its melting point.
19) Boiling Point :The point
in temperature when the liquid starts to boil.
20) Heat of Vaporization : Amount of energy
required for a liquid to become a gas.
21) Diffusion : Spreading of
particles throughout a given volume until they are distributed.
22) Buoyancy : Ability
of a fluid to exert an upward force on an object immersed in it.
23) Pressure : Force
exerted per area. (Formula)
24) Viscosity : The
resistance to flow by a fluid.
25) Pascal : Used to measure pressure.
26) Atom : Element
composed of one type, the {blank}.
27) Nucleus : The center of a atom.
28) Protons : Particles in a atom with a positive charge.
29) Neutrons : Particles
in a atom with no charge.
30) Electrons : Particles
in a atom with a negative charge.
31) Quarks :Smaller
particles in neutrons and protons.
32) Electron Cloud : Area
around a nucleus where electrons are mostly found.
33) Atomic Number :Number of
protons in an atom is equal to a number called {blank}.
34) Mass Number : This
number is the sum of the number of protons and neutrons.
35) Isotopes : Atoms of
the same element that have different numbers of neutrons.
36) Average Atomic Mass : Is the weighted average mass of its isotopes.
37) Periodic Table :A table filled with elements in
order of atomic numbers, etc.
38) Groups : The
vertical columns in the periodic table..
39) Periods : Horizontal
rows of elements.
40) Metals : Good conductors of heat and
electricity.
41) Malleable : Can be
hammered.
42) Ductile : Flexible.
43) Metallic Bonding :Positively
charged metallic ions surrounded by a electron cloud.
44) Transitional Elements : Between groups 1 and 2, and 13 and 18.
45) Nonmetals : Usually
gasses or brittle solids at room temperature.
46) Diatomic Molecule : Consists
of 2 atoms of the same element in a covalent compound.
47) Sublimation : The
process of a solid going directly into a vapor.
48) Metalloids : Has
properties of both nonmetals and metals.
49) Allotropes :Different
forms of the same element
50) Semiconductors : Elements
that conduct under circumstances.
51) Chemical Formula : A formula
that shows what elements are in a compound and what it will become.
52) Chemical Bond : Force
that holds atoms together in a compound.
53) Ionic Bond : Force of
attraction between opposite charges.
54) Covalent Bond : Attraction
formed when elements share electrons.
55) Molecule : A neutral
molecule that forms as a result of electron sharing.
56) Binary Compound : Composed
of two elements.
57) Oxidation Number : Tells you
how many electrons an atom has gained or lost.
58) Polyatomic Ion : Positively
or negatively charged, covalently bonded group.
59) Chemical Reaction : More than
one substances turning into other substances.
60) Reactants : Substances
that react.
61) Products : Substances
that are made.
62) Coeffecients : Numbers
in front of each substance in a equation.
63) Combustion Reaction : Substance reacts with oxygen to make heat and light.
64) Synthesis Reaction : 2 or more substances that combine to make another.
65) Decomposition Reaction : One substance breaks down, into 2 more.
66) Single Displacement Reaction : One element replaces another to make a product
67) Double Displacement Reaction : Two elements replace another to make a product.
Reference :
https://quizlet.com/12520475/chemistry-vocabulary-words-flash-cards/
Reference :
https://quizlet.com/12520475/chemistry-vocabulary-words-flash-cards/
Can you give an example of colloid?
ReplyDeletethanks for your question
ReplyDeleteThese are just a few of the many examples of colloids, both man-made and naturally occuring.
Aerosols:
Aerosol cans. This image was copied from www.adhesiveworld.com/Aerosols/aerosols.html without permission
Man-made: Aerosol sprays, insecticide spray, smog. Natural: Fog, clouds.
Solid aerosol:
Natural: Smoke, dust.
Foam:
Man-made: Shaving lather, whipped cream.
Milk bottle. This image was copied from website.lineone.net/~alan.c.edwards/mtdairy.html without permission.
Emulsions:
Man-made: Mayonnaise, cosmetic lotion, lubricants. Natural: Milk.
Sols:
Man-made: Paint, ink, detergents, rubber (a latex - also occur naturally).
Jelly in glass. This image was copied from nowlin.css.msu.edu/brian/imag203/jello.html without permission.
Solid foams:
Man-made: Marshmallow, styrofoam, insulation, cushioning.
Gels:
Man-made: Butter, jelly.
Solid sols:
Man-made: Certain alloys. Natural: Pearl, opal.
what is difference between ionic bond and kovalent bond?
ReplyDelete
DeleteCovalent Bonds
Ionic Bonds
Diffen › Science › Chemistry
There are two types of atomic bonds - ionic bonds and covalent bonds. They differ in their structure and properties. Covalent bonds consist of pairs of electrons shared by two atoms, and bind the atoms in a fixed orientation. Relatively high energies are required to break them (50 - 200 kcal/mol). Whether two atoms can form a covalent bond depends upon their electronegativity i.e. the power of an atom in a molecule to attract electrons to itself. If two atoms differ considerably in their electronegativity - as sodium and chloride do - then one of the atoms will lose its electron to the other atom. This results in a positively charged ion (cation) and negatively charged ion (anion). The bond between these two ions is called an ionic bond.
can you explain more Kinetic Theory?
ReplyDeleteThe kinetic theory describes a gas as a large number of submicroscopic particles (atoms or molecules), all of which are in constant rapid motion that has randomness arising from their many collisions with each other and with the walls of the container.
DeleteKinetic theory explains macroscopic properties of gases, such as pressure, temperature, viscosity, thermal conductivity, and volume, by considering their molecular composition and motion. The theory posits that gas pressure is due to the impacts, on the walls of a container, of molecules or atoms moving at different velocities.
Kinetic theory defines temperature in its own way, not identical with the thermodynamic definition
Please give me an example from Heterogeneous Mixture, Homogeneous Mixture. thanks
ReplyDeleteHere are some examples of very common heterogeneous mixtures:
DeleteA bowl of Fruit Loops cereal is a heterogeneous mixture because it has cereal bits of many colors floating around in milk.
A bottle of balsamic vinaigrette salad dressing is a mixture that is heterogeneous, and has to be shaken up to make the mixture appear and taste more combined.
Sand shaken up in a bottle of water is a heterogeneous mixture of sand particles floating around which will eventually settle to the bottom of the bottle, making it look a lot less like a mixture.
Here are some homogeneous mixtures:
Water itself is an example of a homogeneous mixture. It often contains dissolved minerals and gases, but these are dissolved throughout the water. Tap water and rain water are both homogeneous, even though they may have different levels of dissolved minerals and gases.
A bottle of alcohol is a man-made homogeneous mixture, from a fine Italian wine to a glass of Scotch whisky.
This comment has been removed by a blog administrator.
ReplyDeleteIsotopes are two or more atomic atoms that have the same atomic number but their mass numbers are different. Example:
Delete, https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwic99G1vMPTAhWLtI8KHU3fAe0QjRwIBw&url=http%3A%2F%2Fweb.sahra.arizona.edu%2Fprograms%2Fisotopes%2Fnitrogen.html&psig=AFQjCNFNJhk848Njy6fTUTAtmuc6RcZYMg&ust=1493342480407827
What is the purpose of this paper??
ReplyDeletethis paper explain about vocabulary , so you can understand all of vocabulary chemistry it's help you to learn chemistry
DeleteThak you for the information, useful for beginner like me
ReplyDeleteok you are wlcome, i felt happy if this article help you ,
DeleteWhat is the example for Diffusion?
ReplyDeleteExamples of Diffusion
DeleteYou can smell perfume because it diffuses into the air and makes its way into your nose.
A teabag placed in a cup of hot water will diffuse into the water.
Placing food coloring in a liquid will diffuse the color.
Cigarette smoke diffuses into the air.
A few crystals of potassium permanganate in water will diffuse and turn the water purple.
Stirring some sugar into tea will help it diffuse quicker.
Leave a soda bottle open and the carbon dioxide bubble will diffuse and leave it flat.
When cooking pasta, the water diffuses into the noodles, making them bigger and moister.
If you water wilted plants, the water will diffuse into the plants and they will get firmer.
A helium balloon will deflate a small amount every day as helium diffuses through the balloon into the air.
Heat is diffused during heat conduction, such as a mug getting hot when a hot liquid is placed in it.
In leaves, oxygen from the leaf cells diffuses out to the air.
Alloys are examples of diffusion, as in copper being diffused in a copper alloy.
If two metal blocks are pushed tightly together and remain like that for several years, one metal will diffuse into the other metal.
In the crystal solid state, lattice diffusion occurs, which means the atoms move within the lattice structure.
In a leaf, carbon dioxide diffuses from the air spaces between mesophyll cells to the chloroplast.
Diffusion in the Human Body
Digested particles of food diffuse in the colon.
Oxygen in the lungs diffuses from the alveolar air space into the blood circulating around the lungs.
Carbon dioxide diffuses from the blood circulating around the lungs into the alveolar air space.
Oxygen diffuses from the blood cells in the blood stream into muscles.
During pregnancy, food molecules and oxygen diffuse from the mother’s blood to the fetus’s blood supply through the placenta.
Cultural Diffusion
People in the United States play soccer, which is played in Mexico.
The Spanish took over lands in the Americas and forced the inhabitants to convert to Roman Catholicism.
There was a mass migration of Irish to the United States during the 18th and 19th centuries.
Starbucks and McDonalds can be found in many different places all over the world.
Computers have made their way around the globe.
Diffusion in Meteorology
Atmospheric circulation is the way thermal energy is diffused on the surface of the Earth.
In storms, warm air carries moisture and rises within cooler air. This leads to water vapor developing and a storm brewing.
Convection is the transfer of heat and it occurs by massive motion in the atmosphere. Examples are the Hadley cell and the polar vortex.
Wind is a localized phenomenon due to convection.
Ocean currents diffuse warm water from the tropics to the equator.
Cold water at the poles moves towards the equator.
Read more at http://examples.yourdictionary.com/examples-of-diffusion.html#64tbxMTiEJVFfC4b.99
could you explain me about chemical bond??
ReplyDeleteyes i could ,, A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between atoms with opposite charges, or through the sharing of electrons as in the covalent bonds. The strength of chemical bonds varies considerably; there are "strong bonds" or "primary bond" such as metallic, covalent or ionic bonds and "weak bonds" or "secondary bond" such as Dipole-dipole interaction, the London dispersion force and hydrogen bonding.
DeleteCan you explain about koloid
ReplyDeleteThe colloidal system (hereinafter abbreviated as "colloid" only) is a mixed (dispersion) form of two or more homogeneous substances but has a large dispersed particle size (1- 1000 nm), thus experiencing Tyndall Effect. Homogeneous means that the dispersed particles are not affected by the force of gravity or other forces imposed on them; So there is no precipitation. For example, this homogeneous nature is also owned by the solution, but is not possessed by the usual mixture (suspension).
DeleteColloid is easy to find everywhere: milk, gelatin, ink, shampoo, and cloud are colloid examples that can be found everyday. The cytoplasm in the cell is also a colloidal system. Colloid chemistry becomes a separate study in industrial chemistry because of its importance.
This very good. Chemystry an english version. Good job girl
ReplyDeleteThis very good. Chemystry an english version. Good job girl
ReplyDeleteCan you explain about koloid
ReplyDeleteGive examples of Chemical Change
ReplyDeleteThis is a list of more than 10 examples of chemical changes.
Deleterusting of iron
combustion (burning) of wood
metabolism of food in the body
mixing an acid and a base, such as hydrochloric acid (HCl) and sodium hydroxide (NaOH)
Give an example of transional elemnets?
ReplyDeleteList of Elements That Are Transition Metals
DeleteScandium
Titanium
Vanadium
Chromium
Manganese
Iron
Cobalt
Nickel
Copper
Zinc
Yttrium
Zirconium
Niobium
Molybdenum
Technetium
Ruthenium
Rhodium
Palladium
Silver
Cadmium
Lanthanum sometimes (often considered a rare earth, lanthanide)
Hafnium
Tantalum
Tungsten
Rhenium
Osmium
Iridium
Platinum
Gold
Mercury
Actinium sometimes (often considered a rare earth, actinide)
Rutherfordium
Dubnium
Seaborgium
Bohrium
Hassium
Meitnerium
Darmstadtium
Roentgenium
Copernicium - Presumably is a transition metal.