Periodic-als ionic compound
Ionic Compound Selected: Calcium Fluoride
Why did you select this compound? I picked this compound because it sounded familiar to me.
How is this ionic compound important/ relavent to your life? I think it is important because of a few reasons. When I am at the dentist I usually hear the word fluoride. I think it is used to clean, and it always important to be clean.
Facts:
Why did you select this compound? I picked this compound because it sounded familiar to me.
How is this ionic compound important/ relavent to your life? I think it is important because of a few reasons. When I am at the dentist I usually hear the word fluoride. I think it is used to clean, and it always important to be clean.
Facts:
- The chemical Calcium is the atomic number 20.
- Calcium is the fifth element and the third most abundant metal in the earths crust
- Calcium is less chemically reactive than alkaline metals and the other alkaline- earth metals.
The element is essential for animal and plant nutrition. Calcium participates in many biochemical reactions, including building skeletal systems and moderating muscle action.- Vitamin D is essential for calcium absorption by the human body. Vitamin D is converted to a hormone which causes intestinal proteins responsible for calcium absorption to be produced.
- While calcium and its compounds are not considered to be toxic, ingesting too many calcium carbonate dietary supplements or antacids can cause milk-alkali syndrome, which is associated with hypercalcemia sometimes leading to fatal renal failure. Excessive consumption would be on the order of 10 g calcium carbonate/day, though symptoms have been reported upon ingesting as little as 2.5 g calcium carbonate daily.
- Calcium fluoride is a mineral composed of CaF2. It occurs as cubic, isometric crystals and cleavable masses. When pure, it is colorless and transparent, or translucent with a glassy luster. Impurities cause color in the stone. and several varieties exhibit fluorescence. Usually found either in pure veins or associated with lead, silver, or zinc ores, it is common in limestone and dolomites. Fluorite occurs in England and the United States.
• Fluoride is a community health measure that benefits people of all ages, income levels, and ethnicity.
• Fluoride protects over 300 million people in more than 40 countries worldwide, with over 10,000 communities and 145 million people in the United States alone.
• Fluoride is a naturally occurring mineral in all water supplies and when adjusted to optimal levels, is effective in reducing tooth decay.
• Fluoride is not a medicine. Fluoride is a naturally occurring element and a nutrient. (Reference: Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride, 2004. National Academy Press, Washington DC)
• Multiple studies over the years done in several countries and the United States show that fluoridation can reduce tooth decay by 60% in baby teeth and up to 35% in adult teeth. When fluoride was discontinued, there were large increases in the incident of tooth decay, especially in children.
Facts on the metal in your compound
Name: Jessica Vargas
Date: 10/8/14
Periodic-als Covalent Compound: Oxygen Gas 2o
Covalent Compound Selected:
Why did you select this Covalent Compound? Is it Polar or Non-polar Covalent?:
I picked this compound because I wanted to do oxygen, but that one was already taken, so Mrs. Parsons gave me a compound that related to oxygen:).
How is this Covalent Compound important/relevant to your life?
It is very important in our lives because we need it to survive.
Facts on the Covalent Compound:
Date: 10/8/14
Periodic-als Covalent Compound: Oxygen Gas 2o
Covalent Compound Selected:
Why did you select this Covalent Compound? Is it Polar or Non-polar Covalent?:
I picked this compound because I wanted to do oxygen, but that one was already taken, so Mrs. Parsons gave me a compound that related to oxygen:).
How is this Covalent Compound important/relevant to your life?
It is very important in our lives because we need it to survive.
Facts on the Covalent Compound:
- Oxygen is an element with the chemical symbol O and atomic number 8.
- Oxygen is a very reactive element that easily forms compounds such as oxides.
- Under standard temperature and pressure conditions two oxygen atoms join to form dioxygen (O2), a colorless, tasteless and odorless gas.
- Oxygen is essential to human life, it is found in the air we breathe and the water we drink (H20).
- Oxygen makes up around 21% of the air you breathe. It is also the most common element in the Earth’s crust (around 47%) and the third most common element in the Universe (but far less than hydrogen and helium, the two most common).
- The large amount of oxygen on Earth is supported by the oxygen cycle which involves the movement of oxygen between the air, living things and the Earth’s crust. Photosynthesis (a process that converts carbon dioxide into organic compounds using sunlight) plays a major role in this cycle.
- Ozone (O3) is an allotrope (different form) of oxygen that combines three oxygen atoms together. While ground level ozone is an air pollutant, the ozone layer in the Earth’s upper atmosphere provides protection from the suns harmful rays by filtering UV light.
- The sun’s mass is made up of around 1% oxygen.
- Between 1770 and 1780, Swedish pharmacist Carl Wilhelm Scheele, British clergyman Joseph Priestley and French chemist Antoine Laurent Lavoisier researched, documented and helped discover oxygen. The name oxygen was first used by Lavoisier in 1777.
- Oxygen therapy is used as a common medical treatment. You may have seen patients on TV or in real life using an oxygen mask or nasal cannula (a plastic tube that fits behind the ears and delivers oxygen through the nostrils).
- Oxygen has a number of other practical uses such as smelting metal from ore, water treatment, as an oxidizer for rocket fuel and a number of other industrial, chemical and scientific applications.
- Concentrated oxygen promotes fast combustion. While a spark or heat is still needed to start a fire, having concentrated oxygen near various fuels can be very dangerous.
- Mainly used for the gas melting and generally for all oxycombustion process.
- Oxygenation of fish breeding