Essays Tagged: "chemical composition"
Analytical Chemistry
Analytical Chemistry is the branch of chemistry principally concerned with determining the chemical composition of materials, which may be solids, liquids, gases, pure elements, compounds, or ... s, which may be solids, liquids, gases, pure elements, compounds, or complex mixtures. In addition, chemical analysis can characterize materials but determining their molecular structures and measurin ...
Subjects: Science Essays > Chemistry
It is called Global Hoax? A realistic view of global warming.
past two decades. But, is this attributable to human activities? Have human activities altered the chemical composition of the atmosphere through the buildup of greenhouse gases ? primarily carbon di ... es in our landfills, raising livestock, natural gas pipelines, and coal, as well as from industrial chemicals and other sources.So, if this is such a big problem, why has so little been done? Mainly b ...
Subjects: Science Essays > Environmental Science
Enhanced greenhouse effect on global warming.
-27 degrees C.The earth's climate is predicted to change because human activities are altering the chemical composition of the atmosphere through the buildup of greenhouse gases. Those gases are prim ...
Subjects: Science Essays > Environmental Science
Global Warming Assignment "Summary"
e day, keeping thetemperature from getting to high. Over the past 100 years, humans have altered thechemical composition of the earth's atmosphere through the buildup of greenhouse gases,therefore res ...
Subjects: Science Essays > Environmental Science
The structure and composition of the atmosphere
planet's magnetic fields. The atmosphere absorbs the energy from the Sun, recycles water and other chemicals, and works with the electrical and magnetic forces to provide a moderate climate. The atmo ... pace.Four distinct layers have been identified using thermal characteristics (temperature changes), chemical composition, movement, and density. These are:The troposphere which starts at the Earth's s ...
Subjects: Science Essays > Environmental Science
Climate and Global Warming
rming over the last 50 years is attributable to human activities. Human activities have altered the chemical composition of the atmosphere through the buildup of greenhouse gases - primarily carbon di ... ollutants discharged into the atmosphere. It is generally characterized by the following factorsThe chemical or physical identity of the pollutants included,The geographic area covered,The institution ...
Subjects: Science Essays > Atmospheric Sciences
Global warming
rming over the last 50 years is attributable to human activities. Human activities have altered the chemical composition of the atmosphere through the buildup of greenhouse gases - primarily carbon di ...
Subjects: Science Essays > Earth Sciences
Global Warming
this warming over that past 50 years is due to human activities. Human activities have changed the chemical composition of the atmosphere through the increase in the atmosphere of greenhouse gases su ...
Subjects: Science Essays > Environmental Science
Global Warming
t of the warming over the last half-century was caused by humans. Human activities have changed the chemical composition of the atmosphere through the buildup of greenhouse gases. Greenhouse gases are ...
Subjects: Science Essays > Environmental Science
The Building Blocks of Biology
r. Be sure to explain how this bond works.In science, a molecule is the smallest particle of a pure chemical substance that still retains its chemical composition and properties. A molecule consists o ... n and properties. A molecule consists of two or more atoms joined by shared pairs of electrons in a chemical bond. It may consist of atoms of the same chemical element, as with oxygen (O 2), or of dif ...
Subjects: Science Essays > Biology
Biology HSC Notes - Maintaining a Balance
rse)Topic 1: Maintaining a BalanceEnzymesThe Role of EnzymesEnzymes role is to maintain the rate of chemical activity in an organism. They are biological catalysts, increasing the rate of reaction in ... ctions to occur at lower temperatures, which means that body temperatures do not have to be so high.Chemical CompositionEnzymes are specialised large proteins, which are composed of chains of amino ac ...
Subjects: Science Essays > Biology
Global Warming.
st century will be significantly larger than in the 20th century. Human activities have altered the chemical composition of the atmosphere through the buildup of greenhouse gases - primarily carbon di ...
Subjects: Science Essays > Earth Sciences > Geography
Measurement of the structure and composition of the Earth's atmosphere
planet's magnetic fields. The atmosphere absorbs the energy from the Sun, recycles water and other chemicals, and works with the electrical and magnetic forces to provide a moderate climate. The atmo ... -energy radiation and the frigid vacuum of space.Remote sensing instruments are used to measure the chemical composition, movement of the atmosphere and density. These instruments are usually located ...
Subjects: Science Essays > Earth Sciences > Meteorology
Global Warming
over the last fifty years is attributable to activities of human. Human activities have changed the chemical composition of the atmosphere and environment through the buildup of greenhouse gases, whic ... rming over the last 50 years is attributable to human activities. Human activities have altered the chemical composition of the atmosphere through the buildup of greenhouse gases - primarily carbon di ...
Subjects: Science Essays > Environmental Science
Global Warming
t of everyday life. Global warming is a phenomenon caused by human activities that are altering the chemical composition of the atmosphere through the buildup of greenhouse gases, mostly composed of c ...
Subjects: Science Essays > Environmental Science
Mineral Deposits
s. The minerals in a mineral deposit are not carbonaceous; i.e., they do not contain electron-rich (chemically reduced) carbon. Coal is an example of a carbonaceous deposit. Coal is a fossil fuel rath ... lue of most mineral deposits does not depend as much upon the mineralogy of the deposit as upon the chemical composition of the deposit, i.e., the concentration of valuable elements within the deposit ...
Subjects: Science Essays > Chemistry
Biology HSC Syllabus - Maintaining A Balance (All Dot Points Answered)
within a limited temperature range:•Identify the role of enzymes in metabolism, describe their chemical composition and use a simple model to describe their specificity in substrates:-Role of enz ... escribe their specificity in substrates:-Role of enzymes in metabolism:Metabolism refers to all the chemical reactions occurring in organismsEnzymes are biological catalysts which increase the rate of ...
Subjects: Science Essays > Biology
Maintaining a Balance
ctive in a limited temperature range1.1. identify the role of enzymes in metabolism, describe their chemical compositions and use a simple model to describe their specificity on substratesRole of Enzy ... describe their specificity on substratesRole of Enzymes: enzymes are organic catalysts which cause chemical reactions to proceed which could not normally occur under normal conditions found in cells. ...
Subjects: Science Essays > Biology > Plant Biology
Diamonds
the stable form of carbon, found at the earth's surface. Despite the fact that they have identical chemical composition, the two minerals are drastically different. Diamond is the hardest known subst ...
Subjects: Science Essays > Earth Sciences
An Emerging Use Of Mass Spectrometry
mass-to-charge ratio. Mass spectrometers are used to identify atoms and isotopes and determine the chemical composition of a sample. Although many different kinds of mass spectrometers are in use tod ... number of applications. These applications include detection of drug abuse, food contamination, and chemical/biological warfare agents.References "Aston, Francis." (1978). In World Book Encyclopedia ( ...
Subjects: Science Essays > Chemistry