Biology: Chemistry in Biology: 08: Chemical Reactions - Medical Animation
This animation may only be used in support of a single legal proceeding and for no other purpose. Read our License Agreement for details. To license this image for other purposes, click here.
Biology: Chemistry in Biology: 08: Chemical Reactions - Medical Animation
MEDICAL ANIMATION TRANSCRIPT: What are chemical reactions? A chemical reaction is a process in which substances interact to form different substances by breaking, forming, or rearranging their chemical bonds. Substances that take part in a chemical reaction may be ionic or covalent compounds, as well as the atoms, ions, or molecules of some elements. Let's look at an example of a chemical reaction. Photosynthesis is a chemical reaction in which plants make food by using the sun's energy to combine carbon dioxide from the air and water from the soil into a sugar called glucose and oxygen. In this reaction, carbon dioxide and water are called reactants, because they're the substances changing by combining or reacting together. Glucose and oxygen are called products because they're the new substances produced by the reaction. Scientists write a chemical reaction in the form of a chemical equation. A chemical equation includes the reactants' chemical formulas on the left and the products' chemical formulas on the right. Notice that the reactants and the products are built from the same elements, carbon, oxygen, and hydrogen. Products must contain the same amount and type of elements that were in the reactants, and products never contain different elements than the reactants. In this reaction, the chemical formulas for the reactants are CO2 for carbon dioxide, and H2O for water. The chemical formulas for the products are C6H12O6 for glucose, and O2 for oxygen. We are not done yet because the equation is not balanced. This is necessary due to the law of conservation of matter, it states that matter can't be created or destroyed, but can only change forms. So to balance the equation, we have to make sure that the number of atoms of each element in the reactants is equal to those in the products, this is because a chemical reaction must abide by the law of conservation of matter, no atoms are created or destroyed. Here's the balanced version of this equation. It shows six molecules of carbon dioxide reacting with six molecules of water to produce one molecule of glucose and six molecules of oxygen. The numbers in front of the formulas are called coefficients. They indicate the number of molecules of each reactant and product. If there's no coefficient, it's understood to mean one molecule of that substance. To review, in a chemical reaction chemical bonds in reacting substances are broken then reformed to make different substances. The reacting substances are called reactants. The substances produced are called products. A chemical equation is a written expression of a chemical reaction, it includes the chemical formulas of both the reactants and the products. In a balanced chemical equation, the number of atoms of each element in the reactants equals those in the products. [music]
"It is with great enthusiasm that I recommend Medical Legal Art. We have
used their services for three years and always found their professionalism,
quality of work, and timely attention to detail to exceed our expectations.
We recently settled two complicated catastrophic injury cases. One medical
malpractice case involving a spinal abscess settled for 3.75 million and the
other involving injuries related to a motor vehicle accident settled for 6.9
million. We consider the artwork provided by MLA to have been invaluable in
helping us to successfully conclude these cases.
I highly recommend MLA to anyone seeking high quality, detailed medical
legal artwork."
E. Marcus Davis, Esq.
Davis Zipperman, Krischenbaum & Lotito
Atlanta, GA www.emarcusdavis.com
"I thought you might want to know that after we sent a copy of your
illustration to the defendants, with a copy to
the insurance company, they increased their offer by an additional million
dollars and the case was settled for $1,900,000.00.
I appreciate your help!"
O. Fayrell Furr, Jr.
Furr, Henshaw & Ohanesian
Myrtle Beach, SC
www.scmedicalmalpractice.com
"I have found that the personalized medical illustrations prepared by Medical
Legal Art have been very accurate and helpful. The medical doctors, both
treating physicians and expert witnesses, have commented on the accuracy and
professionalism of the medical illustrations. Most importantly, your prompt
service and attention upon even short notice has been tremendous. I can
certainly say that the medical illustrations prepared by Medical Legal Art
have assisted us in bringing cases to a successful resolution."
Paul L. Redfearn
The Redfearn Law Firm, P.C.
Kansas City, MO
"Our practice involves medical negligence cases exclusively. We have six
attorneys and one physician on staff. We have used Medical Legal Art's
staff for every one of our cases over the past 12 years and have found their
services to be extraordinary. The transformation of medical records into
powerful graphic images has without fail been handled expertly,
expeditiously and effectively translating into superb results for our
clients, both in the courtroom and in settlement. Every case can benefit
from their excellent work and we unqualifiedly recommend their services.
They are the best!"
Chris Otorowski
Morrow and Otorowski
Bainbridge Island, Washington
www.medilaw.com
Medical Legal Art creates medical demonstrative evidence (medical
illustrations, drawings, pictures, graphics, charts, medical animations,
anatomical models, and interactive presentations) for use during legal
proceedings, including research, demand letters, client conferences,
depositions, arbitrations, mediations, settlement conferences, mock jury
trials and for use in the courtroom. We do not provide legal or medical
advice. If you have legal questions, you should find a lawyer with whom you
can discuss your case issues. If you have medical questions, you should seek the advice of a healthcare provider.
