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29.1.17

bismuth oxychloride


bismuth oxychloride [INORG CHEM] BiOCl A white powder; insoluble in water, soluble
in acid; a toxic material if ingested; used in pigments and cosmetics. { biz məth
a¨ k se¯ klo˙ r ı¯d }

bismuth oleate


bismuth oleate [ORG CHEM] Bi(C17H33COO)3 A salt of oleic acid obtained as yellow
granules; used in medicines to treat skin diseases. { biz məth o¯ le¯ a¯t }

bismuth iodide


bismuth iodide [INORG CHEM] BiI3 A bismuth halide that sublimes in grayish-black hexagonal crystals melting at 408 C, insoluble in water; used in analytical chemistry.
{ biz məth ı¯ ə dı¯d }

bismuth chloride


bismuth chloride [INORG CHEM] BiCl3 A deliquescent material that melts at 230–232 C
and decomposes in water to form the oxychloride; used to make bismuth salts.
Also known as bismuth trichloride. { biz məth klo˙ r ı¯d }

bismuthate


bismuthate [INORG CHEM] A compound of bismuth in which the bismuth has a valence
of 5; an example is sodium bismuthate, NaBiO3. { biz mə tha¯t }

bismuth


bismuth [CHEM] A metallic element, symbol Bi, of atomic number 83 and atomic
weight 208.980. { biz məth }

2,2-bis(para-chlorophenyl)-1,1-dichloroethane


2,2-bis(para-chlorophenyl)-1,1-dichloroethane [ORG CHEM] C14H10Cl4 A colorless,
crystalline compound with a melting point of 109–111 C; insoluble in water; used
as an insecticide on fruits and vegetables. Also known as DDD; TDE. { ¦tu¨ ¦tu¨ bis
par ə klo˙ r ə fen əl ¦wən ¦wən di klo˙ ro¯ e tha¯n }

Birge-Sponer extrapolation


Birge-Sponer extrapolation [SPECT] A method of calculating the dissociation limit of
a diatomic molecule when the convergence limit cannot be observed directly, based
on the assumption that vibrational energy levels converge to a limit for a finite value
of the vibrational quantum number. { ¦bir gə spo¯ n ər ik strap ə la¯ shən }

para-biphenylamine


para-biphenylamine [ORG CHEM] C12H11N Leaflets with a melting point of 53 C; readily
soluble in hot water, alcohol, and chloroform; used in the detection of sulfates and
also as a carcinogen in cancer research. { ¦par ə bı¯ fə nil ə me¯n }

biphenyl


biphenyl [ORG CHEM] C12H10 A white or slightly yellow crystalline hydrocarbon, melting
point 70.0 C, boiling point 255.9 C, and density 1.9896, which gives plates or monoclinic
prismatic crystals; used as a heat-transfer medium and as a raw material for
chlorinated diphenyls. Also known as diphenyl; phenylbenzene. { bı¯ fen əl }

solar installation


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28.1.17

Identifying isotopes and ions


In this video may be explained and answer of some question about Identifying isotopes and ions from the number of electrons, protons and neutrons, identifying isotope, identifying ions, what are valence electrons



These articals might help you:  »  »  »  


Chemistry is the study of matter, and all matter is made up of atoms. We will learn about elements, atomic number and mass, isotopes, moles (chemistry moles, and compounds.


we will study about atoms and elements, tiny particles that make up the world around us. What are atoms, and what kind of properties do they have? How do we weigh and count atoms? We will answer those questions in this section...

The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass. 


How to calculate atomic weight from atomic mass and percent abundance of carbon isotopes.


Introduction to the idea of a mole as a number


How to use the atomic number and the mass number to represent different isotopes.


Identifying isotopes and ions from the number of electrons, protons and neutrons

Identifying isotopes and ions
Source: khanacademy.org


Atomic number, mass number, and isotopes


In this video may be explained and answer of some question about Atomic number, mass number, and isotopes, How to use the atomic number and the mass number to represent different isotopes, isotope definition, define isotope, what is an isotope, what are isotopes, atomic mass number definition, what does atomic number mean, what does the atomic number tell you, how do you find the number of neutrons, how to find the number of neutron, ect....


These articals might help you:  »  »  »  




Chemistry is the study of matter, and all matter is made up of atoms. We will learn about elements, atomic number and mass, isotopes, moles (chemistry moles, and compounds.

we will study about atoms and elements, tiny particles that make up the world around us. What are atoms, and what kind of properties do they have? How do we weigh and count atoms? We will answer those questions in this section...

The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass. 


How to calculate atomic weight from atomic mass and percent abundance of carbon isotopes.


Introduction to the idea of a mole as a number


How to use the atomic number and the mass number to represent different isotopes.


Identifying isotopes and ions from the number of electrons, protons and neutrons


How to use the atomic number and the mass number to represent different isotopes
Source: khanacademy.org

The mole and Avogadro's number


The mole and Avogadro's number
In this video may be explained and answer of some question about what is a mole in chemistry
what is a mole chemistry, mole chemistry definition, how many atoms are in a mole, what is mole,
mole definition chemistry, how much is a mole, how many molecules in a mole, grams to moles conversion, moles to grams calculator , etc...


These articals might help you:  »  »  »  






Chemistry is the study of matter, and all matter is made up of atoms. We will learn about elements, atomic number and mass, isotopes, moles (chemistry moles, and compounds.

we will study about atoms and elements, tiny particles that make up the world around us. What are atoms, and what kind of properties do they have? How do we weigh and count atoms? We will answer those questions in this section...

The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass. 


How to calculate atomic weight from atomic mass and percent abundance of carbon isotopes.


Introduction to the idea of a mole as a number


How to use the atomic number and the mass number to represent different isotopes.


Identifying isotopes and ions from the number of electrons, protons and neutrons

Introduction to the idea of a mole as a number
Source: khanacademy.org

How to calculate atomic weight


in this video may be explained and answer of some question about How to calculate atomic weight from atomic mass and percent abundance of carbon isotopes.molar mass of water, molar mass, atomic number, atomic mass, how to calculate molar mass


take your time and do this exercise:
 -calculate the atomic weight of water 
 -calculate the atomic weight of silver
 -calculate the atomic weight of carbon
 -calculate the atomic weight of chlorine 
 -calculate the atomic weight of oxygen

These articals might help you:  »  »  »  





Chemistry is the study of matter, and all matter is made up of atoms. We will learn about elements, atomic number and mass, isotopes, moles (chemistry moles, and compounds.

we will study about atoms and elements, tiny particles that make up the world around us. What are atoms, and what kind of properties do they have? How do we weigh and count atoms? We will answer those questions in this section...

The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass. 


How to calculate atomic weight from atomic mass and percent abundance of carbon isotopes.


Introduction to the idea of a mole as a number


How to use the atomic number and the mass number to represent different isotopes.


Identifying isotopes and ions from the number of electrons, protons and neutrons

how to calculate molecular weight
Source: khanacademy.org

Atomic weight and atomic mass


In this video may be explained and answer of some question about The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass.

These articals might help you:  »  »  »  





Chemistry is the study of matter, and all matter is made up of atoms. We will learn about elements, atomic number and mass, isotopes, moles (chemistry moles, and compounds.

we will study about atoms and elements, tiny particles that make up the world around us. What are atoms, and what kind of properties do they have? How do we weigh and count atoms? We will answer those questions in this section...

The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass. 


How to calculate atomic weight from atomic mass and percent abundance of carbon isotopes.


Introduction to the idea of a mole as a number


How to use the atomic number and the mass number to represent different isotopes.


Identifying isotopes and ions from the number of electrons, protons and neutrons

The difference between atomic weight and atomic mass in chemistry,Atomic weight and atomic mass
Source: khanacademy.org

Elements and atoms


In this video may be explained and answer of some question about
How elements relate to atoms. The basics of how protons, electrons, and neutrons make up an atom. elements and atoms,periodic table of elements, periodic table with names, atom definition.

what is the element and atom?



These articals might help you:  »  »  »  





Chemistry is the study of matter, and all matter is made up of atoms. We will learn about elements, atomic number and mass, isotopes, moles (chemistry moles, and compounds.

we will study about atoms and elements, tiny particles that make up the world around us. What are atoms, and what kind of properties do they have? How do we weigh and count atoms? We will answer those questions in this section...

The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass. 


How to calculate atomic weight from atomic mass and percent abundance of carbon isotopes.


Introduction to the idea of a mole as a number


How to use the atomic number and the mass number to represent different isotopes.



Identifying isotopes and ions from the number of electrons, protons and neutrons


Source: khanacademy.org