VOCABULARY
This is a collection of vocabulary. I hope it is useful for all of us.
1. Atom is Element composed of one type, the
{blank}.
2. Acid is There are several ways
to define an acid, but they
include any chemical that gives off protons or H+ in water. Acids
have a pH less than 7. They turn the pH indicator phenolphthalein colorless and
turn litmus paper red.
3. Allotropes is Different forms of
the same element
4. Alkaline earth metal is An alkaline earth metal is an element belonging to Group II of the
periodic table. Examples of alkaline earth metals are magnesium and calcium.
5. Alkane is An alkane is an
organic molecule that only contains single carbon-carbon bonds.
6. Alkene is An alkene is an organic molecule
that contains at least one C=C or carbon-carbon double bond.
7. Alkyne is An alkyne is an
organic molecule that contains at least one carbon-carbon triple bond.
8. Allotrope is Allotropes are
different forms of a phase of an element. For example, diamond and graphite are
allotropes of carbon.
9. Alpha Particle An
alpha particle
is another name for a helium
nucleus, which contains two protons and
two neutrons. It's called an alpha particle in reference to
radioactive (alpha) decay.
10. Amine is An amine is an
organic molecule in which one or more of the hydrogen
atoms in ammonia have been replaced by an organic group. An example of an
amine is methylamine.
11. Average Atomic Mass Is the weighted
average mass of its isotopes.
12. Binary Compound is Composed of two
elements.
13. Boiling Point is The point in
temperature when the liquid starts to boil.
14. Buoyancy is Ability of a fluid to exert an upward
force on an object immersed in it.
15. Buffer is A liquid that resists change in pH when an acid or base is
added. A buffer consists of a weak acid
and its conjugate base. An example
of a buffer is acetic acid and sodium acetate.
16. Base is A base is a compound that produces
OH- ions or electrons in water or that accepts protons. An example
of a common base is sodium hydroxide,
NaOH.
17. Beta particle is A beta particle is an electron, although
the term is used when the electron is emitted in radioactive decay.
19. Calorimetry is Calorimetry is the
study of heat flow. Calorimetry may be used to find the heat of reaction of two
compounds or the heat of combustion of a compound, for example.
20. Carboxylic acid is A carboxylic acid is an organic
molecule containing a -COOH group. An example of a carboxylic acid is acetic
acid.
21. Catalyst is A catalyst is a substance that lowers
the activation energy of a
reaction or speeds it up without being consumed by the reaction. Enzymes are
proteins that act as catalysts for biochemical reactions.
22. Cathode is A cathode is the
electrode which gains electrons or is reduced. In other words, it is where
reduction occurs in an electrochemical
cell.
23. Chemical equation is A chemical equation is a description of a chemical reaction,
including what reacts, what is produced, and which direction(s) the reaction proceeds.
24. Chemical property is A chemical property is a property that can
only be observed when a chemical change
occurs. Flammability is an example of a
chemical property, since you can't measure how flammable a substance
is without igniting it (making/breaking chemical bonds).
26. Critical mass is Critical mass is the minimum
quantity of radioactive material needed to cause a nuclear chain reaction.
27. Critical point is The critical point is the endpoint
of the liquid-vapor line in a phase
diagram, past which a supercritical liquid forms. At the critical point, the liquid and
vapor phases become indistinguishable from one another.
28. Crystal is A crystal is an
ordered, repeating three-dimensional pattern of ions, atoms, or molecules. Most
crystals are ionic solids, although
other forms of crystals exist.
29. Chemical Property is Characteristic of
a substance that indicates whether it can undergo a chemical change.
30. Chemical Change is A change of one
substance to another.
31. Colloid is Type of mixture with particles that
are larger than those in solutions, but not heavy enough to settle out.
32. Coeffecients is Numbers in front
of each substance in a equation.
33. Compound is A substance in
which the atoms of 2 or more elements are combined.
34. Combustion Reaction is Substance reacts with oxygen to make
heat and light.
35. Covalent Bond is Attraction formed when elements
share electrons.
36. Chemical Formula is A formula that
shows what elements are in a compound and what it will become.
37. Chemical Bond is Force that holds atoms together in a
compound.
38. Decomposition Reaction is One substance
breaks down, into 2 more.
39. Distillation is A process for separating substances
by evaporating a liquid and recondensing its vapor.
40. Ductile is Flexible.
41. Diffusion is Spreading of particles throughout a
given volume until they are distributed.
42. Diatomic Molecule is Consists of 2
atoms of the same element in a covalent compound.
43. Double Displacement
Reaction is Two elements
replace another to make a product.
44. Denature is There are two
common meanings for this in chemistry. First, it can refer to any process used
to make ethanol unfit for consumption (denatured alcohol). Second, denaturing
can mean breaking down the three-dimensional structure of a molecule, such as a
protein is denatured when exposed to heat.
45. Diffusion is the movement of particles from an
area of higher concentration to one of lower concentration.
46. Dilution is Dilution is when a solvent is added to a solution, making
it less concentrated.
47. Effusion is Effusion is when a
gas moves through an opening into a low-pressure container (e.g., is drawn by a
vacuum). Effusion occurs more quickly than diffusion because additional
molecules aren't in the way.
48. Electrolysis
Electrolysis is using electricity
to break the bonds in a compound to break it apart.
49. Electrolyte An
electrolyte is an ionic compound that dissolves in water to
produce ions, which can conduct electricity. Strong electrolytes completely dissociate
in water, while weak electrolytes only
partially dissociate or break apart in water.
50. Element is If all the atoms in a substance has
the same identity it becomes {blank}.
51. Electrons is Particles in a atom with a negative
charge.
52. Electron Cloud is Area around a
nucleus where electrons are mostly found.
53. Electron Dot Diagram is Uses the symbol of the element and
dots to represent electrons.
54. Groups is The vertical columns in the periodic
table.
55. Heterogeneous Mixture is Mixture in which different materials
can easily be distinguished.
56. Homogeneous Mixture is Contains 2 or more gases, liquids,
or solids substances blended evenly.
57. Heat of Fusion is The energy
required to change a substance from a solid to a liquid at its melting point.
58. Heat of Vaporization is Amount of energy required for a
liquid to become a gas.
59. Isotopes is Atoms of the same element that have
different numbers of neutrons.
Transitional Elements is Between groups 1 and 2, and 13 and 18.
Transitional Elements is Between groups 1 and 2, and 13 and 18.
What different of Chemical equation with Chemical Property?
BalasHapusChemical equations about the description of a chemical reaction, including what reaction, what is produced, and which reaction direction is produced. The chemical properties are descriptions of chemical changes. Flammability is an example of chemical properties, because you can not measure how easily a substance is without burning (making / breaking chemical bonds).
HapusDecomposition Reaction, please give me some example about this reaction?
BalasHapusThe electrolysis of water into oxygen and hydrogen gas is an example of a decomposition reaction:
Hapus2 H2O → 2 H2 + O2
Another example is the decomposition of potassium chloride into potassium and chlorine gas.
2 KCl(s) → 2 K(s) + Cl2(g)
what is different of metals and non metals? give me a examples
BalasHapusMetals is Good conductors of heat and electricity. While non metals otherwise.
HapusExample:
Metals (aluminum, copper, gold, iron, lead, silver, titanium, uranium, and zinc)
Non metals (hydrogen (H), carbon (C), nitrogen (N), oxygen (O), phosphor (P), sulfur (S), and selenium (Se) groups).
Can you explain wht the meaning of ampother?
BalasHapusI'll try to answer your question,
Hapusampother is bility of a substance that can displace acidity from acidic to alkaline properties. It depends on the condition or the environment in which the substance is expressed when the substance is in a strong acidic environment then the substance is alkaline. And vice versa if the substance is in the acid environment then the substance is alkaline.
One of the amphoteric substances we usually encounter encountered by our disc is water (H20).
As a base:
1. H2O + HCl → H3O + + Cl-
Seen in this example HCL is a strong acid so water is alkaline
As an acid:
2.H2O + NH3 → NH4 + + OH-
In example 2 NH 3 is a base so water is acidic
"Transitional Elements is Between groups 1 and 2, and 13 and 18" can you explain about group 13 and 18? :)
BalasHapusyes, I can. Some elements of class 13 show lower levels of oxidation than the element should have. Group 13 generally forms compounds with +3 oxidation levels, but Ga, In, and Tl can also form another oxidation rate of +1. Ga and In are more dominant with the +3 oxidation rate, whereas Tl is more dominant with the +1 oxidation rate. Heavy elements have a tendency to form monovalent compounds.
HapusWhile there are 18 groups in the periodic table, but the f-block columns (between classes 2 and 3) are not numbered. Elements in one class have the same physical or chemical characteristics on the outer shell of electrons (thus, having the same nuclear charge), since most chemical properties are dominated by the orbital location of the outer electron. There are three class numbering systems.
Chemical formula,can u explain n give some example
BalasHapuscan you explain about Distillation, Ductile, Diffusion?
BalasHapusHello, The boiling point in each liquid is different from each other, what factors can affect the boiling point in a liquid?
BalasHapusI'll try to answeryour question,
HapusThe boiling point in each liquid is different from the other, what factors can affect the boiling point in a liquid that is solvent, pressure and the amount of solute particles
Give me example of Alkane , Alkene , and Alkyne
BalasHapusalkane, examples : C2H6 (etana) and C5H12 (pentana)
Hapusalkene, examples : C4H8 (butena) and C8H16 (oktena)
and alkyne, examples : C7H12 (heptena) C9H16 (Nonena)
what the main different of Alkane , Alkene , and Alkyne?
BalasHapusCan you give me example for catalyst?
BalasHapus- MnO4
Hapus- H2O
What the difference of alakane and alkene.
BalasHapusThe difference between the two elements is the alkane has a single bond, examples: C2H6 (ethane) and C5H12 (pentane) and the alkene has a double bond, examples: C4H8 (butene) and C8H16 (octenes).
Hapus