Chemistry
Vocabulary
1. Addition
is a type of reaction of a carbon compound in which the double bond is
saturated.
2. Alkanes
are saturated aliphatic hydrogencarbons.
3. Alkene
is an aliphatic hydrocarbon with one carbon-carbon double bond.
4. Alkyl
is a one-handed group derived from alkanes.
5. Alkano is the aliphatic hydrocarbon with a
triple carbon-carbon bond.
6. The atom
is the smallest part of the element involved in a chemical reaction and all
substances are composed of atoms in a particular composition.
7. Rule
(Law) Oktet is the tendency of elements to achieve the configuration of the
nearest noble gas octet.
8. Fossil
fuels are fuels derived from the remains of organisms.
9. The
oxidation number is the charge carried by an atom in a compound if all
elktron bonds are distributed to a more electronegative element.
10. The
degree of ionization is the ratio between the amount of the ionizing agent
and the amount of the original substance.
11.
Distillation
may be called a distillation that is a chemical separation method based on the
difference in velocity or volatility of materials
12.
Deamination
The process of removing amino groups from a molecule
13. Dehydrohalogenation
The reaction that causes the loss of hydrogen and halogen from a molecule
14.
Decarboxylation
The release reaction of CO2 molecules
15.
Denaturation
of Proteins The process of breaking or destruction of weak chemical bonds
in proteins due to certain treatments that cause destruction of quaternary,
tertiary structures and even secondary protein structures.
16.
Degree of
Dissociation Comparison of the amount of substances that decompose with the
amount of the substance initially
17. The
greenhouse effect is the nature of the atmosphere that can degrade visible
and ultraviolet radiation properties, but withstand infrared radiation.
18.
Electrolytes
That is a melt or a solution of substances that can conduct electricity.
19. Strong electrolytes are electrolytes
whose electrical conductivity is good despite its low relative concentration.
20.
The weak
electrolyte is an electrolyte whose electrical conductivity is relatively poor,
its concentration is relatively large.
21.
Electro
valence is an electron that can be used to form chemical bonds.
22. The law
of mass conservation The law which states that the mass of matter before and
after the reaction is fixed
23.
The law
of multiplier This law states that there can be two kinds of elements
forming two or more compounds, if the first element has the same mass, then the
second element in the compounds has a ratio as an integer and a simple
24. Electrochemical
Branch of science that studies the relationship of electrical energy with
chemical reactions
25.
Electroplating
The process of coating metal surfaces with other metals
26.
Colloid
emulsion formed by a dispersed liquid phase in a liquid dispersing medium
27. Colloidal
Emulsions Colloid composed by a liquid dispersed phase in a solid
dispersant medium
28. Activation
Energy The minimum kinetic energy that must be owned or given to the
particle for its collision to produce a reaction
29. Energy
Bond Energy needed to break the bonds between atoms from one mole of the
compound in the form of gas and generated gas atoms
30.
Ionization
Energy The lowest energy that an atom needs to be able to release its
valence electrons
31.
Enthalpy
The energy content of a substance at a fixed pressure
32. Entalpy
Disalpi The enthalpy of the dissolution reaction from one mole of the
compound into the solvent and into a dilute solution
33. Enthalpy Burning Entalpi combustion
reaction is perfectly one mole of compound with oxygen
34. Enthalpy The formation of enthalpy of
reaction formation of one mole of the compound of its elements
35. Decomposition
enthalpy The enthalpy of decomposition reaction from one mole of the
compound into its elements
36.
Enzymes
One or several polypeptide (protein) groups that act as catalysts
37.
Formaldehyde
The simplest compound of aldehydes
38.
Enzyme
phosphatase that catalyzes the phosphate group release reaction of a compound
39. Phosphofructokinase Enzyme that
catalyzes 6-phosphorylation of fructose into fructose 1,6-bisphosphate
40. Mol Fig. Numbers
that express the ratio of the number of moles of solute and solvent in a
solution
Hi wahyu. could you give me different of entalphy disarpi and entalphy burning? explain to me
BalasHapusEntalpi is a term in thermodynamics that states the amount of energy of a thermodynamic system. Whereas the standard combustion enthalpy is the total enthalpy change in a reaction system (where the reaction product is declared as thermodynamic system) which occurs when one molecule reacts perfectly with oxygen occurring at 298K and atmospheric pressure 1 atm
Hapushi wahyu, please give examples from Mol Fig!
BalasHapusThe fraction of moles or mole fig for example as follows:
HapusIf 39.875 grams of CuSO4 (Mr = 159.5) is dissolved in 90 grams of water
(Mr = 18), determine the mole fraction of the solute and the mole fraction of the solvent
Completion:
The number of moles of solute (CuS04)
N = mass CuS04: Mr
N = 39.875 grams: 159.5 grams / mol = 0.25 mol
The number of moles of solvent (np)
N water = water mass: Mr. water
N = 90 grams: 18 grams / mol = 5 mol
The mole fraction of solvent (water), Xp = n water: (n water + n CuSO4)
The mole fraction of solvent = 5: (5 + 0.25) = 0.952 mol
The mole fraction of CuS04, (Xt) = 0.25: (5 + 0.25) = 0.048
Number of mole fractions = 0.952 + 0.048 = 1
Can you give me example from Fossil fuels?
BalasHapusExamples of fossil fuel are:
Hapus1. oil
2. natural gas
3. coal
How the process of forming fossil fuels?
BalasHapusIn the manufacture of fossil fuels are usually found simultaneously. The formation of oil and natural gas began millions of years ago when solar energy is stored in marine organisms such as algae and plankton. These organisms are buried in layers of sediment or sediment, such as sand and salt. For millions of years, organism-forming chemicals have turned into oil and natural gas because of the bacteria and sedimentary layer pressures that are increasingly dividing them. The pressure of the moving Earth's corals causes creases or fractures. Oil and natural gas often accumulate in between the layers. Due to the nature of oil and gas that is more tenuous than water, so it can rise through the porous coral. Then oil and gas accumulate beneath a layer of non-porous coral, called a coral reef. By thoroughly examining coral formation, the oil and natural gas sites can be estimated with high precision
HapusWhat is the difference of strong electrolyte and weak electrolyte?
BalasHapusThe difference between Powerful Electrolyte and Weak Electrolyte is:
Hapus1. The strong electrolyte is easily soluble in water, but the weak electrolyte does not dissolve easily.
2. Strong electrolytes completely separate or ionize in solution, while weak electrolytes partially separate or ionize.
3. Powerful electrolytes conduct very efficient electricity because of the large amount of ions in the medium, but weak electrolytes deliver only small currents.