CHEMISTRY VOCABULARIES
1.
Substance :
Zat: A type of matter with a fixed composition.
2.
Compound
:
Senyawa: A substance in which the atoms of 2 or more elements are combined.
3.
Element :
Unsur: If all the atoms in a substance has the same identity it becomes
{blank}.
4.
Heterogeneous
mixture: Campuran heterogen: Mixture in which different materials can easily be
distinguished.
5.
Homogeneous
mixture: Campuran homogeny: Contains 2 or more gases, liquids, or solids
substances blended evenly.
6.
Periodic
table :
Tabel periodic: A table filled with elements in order of atomic numbers, etc.
7.
Electrons :
Elektron: Particles in a atom with a negative charge.
8.
Solution :
Larutan: Homogeneous mixture with particles so small that they cannot be seen
with a microscope.
9.
Chemical
change : Perubahan kimia: A change
of one substance to another.
10. Isotopes :
Isotop: Atoms of the same element that have different numbers of neutrons.
11. Covalent Bond : Ikatan kovalen: Attraction formed when
elements share electrons.
12. Acid :
Asam: This is anything that gives off H+ ions in water. Acids have a pH less
than 7 and are good at dissolving metals. They turn litmus paper red and
phenolphthalein colorless.
13. Alkali metals :
Logam alkali: Group I in the periodic table
14. Absolute temperature : Suhu absolute : This is a temperature
reading made relative to absolute zero. We use the unit of Kelvins for these
readings.
15. Cathode :
Katoda : The electrode in which reduction occurs. Reduction is when a compound
gains electrons.
16. Chain reaction :
Reaksi berantai : A reaction in which the products from one step provide the
reagents for the next one.
17.
Colloid :
Koloid: It's a suspension.
18. Complex ion :
Ion kompleks: An ion in which a central atom is surrounded by a bunch of
molecules like water or ammonia.
19. Condensation :
Kondensasi: When a vapor reforms a liquid. This is what happens on your
bathroom mirror when you take a shower.
20. Hydrocarbon :
Hidrokarbon: A molecule containing carbon and hydrogen.
21. Kinetic energy :
Energi kinetik: The energy due to the movement of an object. The more something
moves, the more kinetic energy it has.
22. Mass :
Massa: The amount of matter in an object. The more mass, the more stuff is
present.
23. Molar mass :
Massa molar: The mass of one mole of particles.
24. Osmosis :
Osmosis: The flow of a pure liquid into an area of high concentration through a
semi-permeablemembrane.
25. Pascal :
Pascal: Used to measure pressure.
26. Protons :
Proton: Particles in a atom with a positive charge.
27. Neutrons :
Neutron: Particles in a atom with no charge.
28. Viscosity :
Viskositas: The resistance to flow by a fluid.
29. Isotopes :
Isotop: Atoms of the same element that have different numbers of neutrons.
30. Metals :
Logam: Good conductors of heat and electricity.
31. Molecule :
Molekul: A neutral molecule that forms as a result of electron sharing.
32. Binary compound : Senyawa biner: Composed of two
elements.
33. Reactants : Reaktan: Substances that
react.
34. Synthesis reaction : Reaksi Sintesis: 2 or more substances
that combine to make another.
35. Metallic bonding : Ikatan logam: Positively charged
metallic ions surrounded by a electron cloud.
36. Sublimation : Sublimasi: The process of a solid going
directly into a vapor.
37. Ionic bond :
Ikatan ion: Force of
attraction between opposite charges.
38. Metalloids :
Metalloid: Has
properties of both nonmetals and metals.
39. Coefficients : Koefisien: Numbers in front of each substance in a
equation.
40. Chemical bond : Ikatan Kimia: Force
that holds atoms together in a compound.
How do I find the number of protons, electrons and neutrons that are in an atom of an element?
BalasHapusBy looking at the sum of the number of atoms and the mass number of an element
HapusHi,Jelpa. try to explain about osmosis! thank you.
BalasHapusOsmosis is the movement of water molecules through selective semipermiabel membranes from the more dilute parts to the more concentrated parts. The semipermeable membrane must be penetrated by the solvent, but not by the solute, resulting in a pressure gradient along the membrane.
HapusMention examples of strong acids and weak acids ..
BalasHapusweak acid : CH3COOH , H2CO3 , HNO3 , OTHERRS
Hapusstrong acid : HCL , HNO3 , H2SO4 , OTHERS
Give me explain and example of synthesis reaction
BalasHapusThe synthesis reaction occurs when two or more reactants combine to form one product. The synthesis reaction can be represented by a general equation:
HapusAnother example of a synthesis reaction is a combination of sodium (Na) and chlorine (Cl) to produce sodium chloride (NaCl). This reaction is represented by the chemical equation:
2Na + Cl2 → 2NaCl
Sodium is a highly reactive metal, and chlorine is a toxic gas. Both elements are depicted in Figure below. The compounds they synthesize have very different properties. Sodium chloride commonly called table salt, which is not reactive or poisonous. In fact, salt is an important component of human food