BSC 114 Lecture Notes - Lecture 2: Seta, Chemical Equilibrium, Triiodothyronine

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graysardine594

7 Apr 2016

School

University of Alabama

Department

Biological Sciences

Course

BSC 114

Professor

Steven Marcus

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Document Summary

Bsc 114 lecture 2- the chemical context of life ii. Covalent bonds can form between atoms of the same element or atoms of different elements. A compound is a combination of two or more different elements. Bonding capacity if an atom is referred to as valence or valency. Oxygen needs to bond w/ 2 hydrogens to satisfy the valence of 1oxygen. Carbon needs to bond w/ 4 hydrogens to satisfy the valence of 1 carbon. A molecule consists of two or more atoms held together by covalent bonds. A single covalent bond, or single bond, is the sharing of one pair of valence electrons. A double covalent bond, or double bond, is the sharing of two pairs of valence electrons. A triple covalent bond, or triple bond, is the sharing of two pairs of valence electrons. The notation used to represent atoms and bonding is called a structural formula. This can be abbreviated further w/ a molecular formula.

Related Questions

1-which elements have only one electron shell

-hellium

-carbon

2-carbon12 and carbon 13, are two examples carbon ions. theyhave the same number of ... but different numbers of ....

3- in an ionic bond ... is positive

-the anion

-the cation

4- a hydrogen bond is an example of ...

-van der Waals force

-a non-polar bond

5- basic ph is maintained in which of the following

-gastric " juices"

-ammonia solutions

6- argon has one or more than one electron shell and theoutermost shell contains eight electrons, what are the outcome ofsuch electron configuration ?

i-ts stable and inert

-it forms covalent bonds in an equeous solution

cyanlizard300

When two or more different elements bond together, compounds are formed.

The smallest parts of these compounds that retain their original properties are called molecules.

All atoms contain negatively charged electrons that orbit around a positively charged nucleus.

The nucleus contains positively charged ____________ and neutrally charged ____________ .

It is the ____________ charged ____________ that give atoms properties that are favorable in forming chemical bonds.

1- How is microbiology defined? What types of organisms are considered microorganisms? What terms do we use to describe people who study the different types of microorganisms?

2- What are some positive interactions as well as negative interactions we have with microorganisms? Remember, we have ca. 10X more microbial cells on or in our bodies than we do cells of our bodies.

3- How is matter defined? What are the 3 states of matter?

4- What is an atom? What particles make up on atom? Where are these particles found within the atom?

5- What elements are most abundant in living cells (human cells)?

6- What are isotopes? How are radioactive isotopes used in research applications?

7- Remember that molecules (combinations of 2 or more atoms) are held together with chemical bonds.

8- How does a covalent bond differ from an ionic bond? What distinguishes a polar molecule from a non-polar molecule?

9- The pH scale ranges from 0 (most acidic) to 14 (most basic); 7 is neutral.

10 How does an organic chemical differ from an inorganic chemical.

I'm not getting those questions

sangriaoyster318

BSC 114 Lecture Notes - Lecture 2: Seta, Chemical Equilibrium, Triiodothyronine

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