Quantcast

Search Content Library



Search Language
Browse
Medical Illustrations
Medical Charts
Tear Sheet Pads
Medical Animations
Medical Animation Titles
Medical Encyclopedia
Custom Interactive
Most Recent Uploads
Body Systems/Regions
Anatomy & Physiology
Cells & Tissues
Cardiovascular System
Digestive System
Lymphatic System
Integumentary System
Muscular System
Nervous System
Reproductive System
Respiratory System
Skeletal System
Special Senses
Urinary System
Abdomen
Back and Spine
Foot and Ankle
Head and Neck
Hip
Knee
Shoulder
Thorax
Medical Specialties
Cancer
Cardiology
Dentistry
Editorial
Health & Fitness
Neurology/Neurosurgery
Ob/Gyn
Orthopedics
Pathology
Pediatrics
Account
Administrator Login
Biology: Chemistry in Biology: 04: Chemical Compounds - Medical Animation
 
If animation does not play, download and install the latest free Flash Player plugin.
More Like ThisAdd To Lightbox NSV15015 Elite  Enlarge Share
Animation licenses start at $350/year

Item #NSV15015Source #1029

Biology: Chemistry in Biology: 04: Chemical Compounds - Medical Animation
MEDICAL ANIMATION TRANSCRIPT: Now that you've learned about atomic structure and elements, let's look at chemical compounds. A chemical compound is a substance made of two or more elements that are chemically bonded together in fixed proportions. Common examples are water and table salt. You've probably heard of H2O. That's a chemical formula for water. In the chemical formula for water, the little number slightly below the letter H for hydrogen is called a subscript. A subscript in the chemical formula tells you how many atoms of that element are in one unit of the compound. There is no subscript next to the O for oxygen. That means there's only one oxygen atom. We don't write the one. When there is no subscript it's understood that we mean one atom. So, H2O is the formula for one unit of water. The formula shows that a unit of water contains a fixed proportion of two atoms of hydrogen to one atom of oxygen. It's important to know that compounds usually have very different physical and chemical properties than the individual elements they contain. For example, although water is liquid at room temperature, the elements hydrogen and oxygen are gasses. The next compound we'll look at is sodium chloride, commonly known as table salt. Sodium chloride consists of sodium and chloride ions. Ions are charged particles because they have gained or lost electrons. How many ions of sodium are there in one unit of the chemical formula for sodium chloride? No subscript means there's only one sodium ion. And how many chloride ions? Again, there's only one. So, sodium chloride has a one-to-one ratio of sodium to chloride ions. Okay. The last example of a compound is glucose. A simple sugar your body cells use for energy. The chemical formula for one unit of glucose is C6H12O6. Here we can see that one unit of glucose has six carbon atoms and 12 hydrogen atoms. How many oxygen atoms does one unit of glucose have? If you said six oxygen atoms, you'd be right. In review, a compound is a substance containing the chemically bonded atoms of two or more elements. A chemical formula gives the proportional number of atoms or ions of each element in a compound. And the compound usually has different physical and chemical properties than the elements it contains. We'll explore how elements chemically bond together in the next video. [music]

YOU MAY ALSO WANT TO REVIEW THESE ITEMS:
Hand, Palmar View
Hand, Palmar View - BT00007
Medical Illustration
Add to my lightbox
Find More Like This
Traumatized Spinal Cord with Neurological Deficits
Traumatized Spinal Cord with Neurological Deficits - exh39826b
Medical Chart
Add to my lightbox
Find More Like This
The innervations of the inferior aspect of Foot
The innervations of the inferior aspect of Foot - exh48830
Medical Chart
Add to my lightbox
Find More Like This
Traumatic Leg Injury with Resulting Reflex Sympathetic Dystrophy (RSD)
Traumatic Leg Injury with Resulting Reflex Sympathetic Dystrophy (RSD) - exhR0028-nl
Medical Chart
Add to my lightbox
Find More Like This
Biology: Chemistry in Biology: 08: Chemical Reactions
Biology: Chemistry in Biology: 08: Chemical Reactions - NSV16026
Medical Animation
Add to my lightbox
Find More Like This
Biology: Chemistry in Biology: 09: Mixtures With Water
Biology: Chemistry in Biology: 09: Mixtures With Water - NSV16028
Medical Animation
Add to my lightbox
Find More Like This
Nucleus | About Nucleus | Medical Review Board | Free Medical Images | Testimonials | Patient Education
Social Media Marketing Hospital | Pregnancy Videos | Credits | Contact Us | Find a Lawyer | Hospital Marketing