The Living And Non-Living Components Of The Earth Contain Mixtures

Submitted By random9981
Words: 1686
Pages: 7
Open Document
The Chemical Earth 8.2

1. the living and non-living components of the earth contain mixtures identify the difference between elements, compounds and mixtures

Elements: are pure substances which only contain one type of atom
Compounds: pure substances consisting of two or more different atoms chemically bonded in a fixed ratio
Mixtures: impure substances consisting of different elements or compounds mixed together with no fixed ratio

Homogenous: same composition throughout elements and compounds are homogenous mixtures can also be homogenous e.g. wine

Heterogeneous: not the same composition throughout e.g. muddy water mixtures can be heterogeneous

Matter is anything that has mass and occupies for example gas, liquid or solids

Solids: particles are packed closely together and vibrate against each other. The particles are not free to move and have a fixed shape.
Liquids: particles are close together, but are free to move therefore have no fixed shape
Gas: particles are far apart from each other and distribute themselves throughout whatever they are contained in.

Construct word and balanced formulae equations of chemical reactions as they are encountered

In an equation there must be equal numbers of each type of atom on either side of the arrow.

NaOH + HCl  NaCl + H²O
1 sodium atom on each side
1 oxygen atom on each side
2 hydrogen atoms on each side
1 chlorine atom on each side
EQAUTION BALANCED

2LiOH + H2SO4  LisSO4 + 2H2O

Asses separation techniques and identify the differences in properties

Immiscible liquid: not mixable e.g. oil and water

EXPERIMENT: Seperating salt and sand
Using the separation technique of evaporation salt and sand were separated. Water was added to the mixture to dissolve the salt. This was then filtered into a conical flask so the sand was separated and only the salt solution was remaining. The salt solution was evaporated in a conical flask over a Bunsen burner, causing salt crystals to be formed.

Describe situations in which gravimetric analysis supplies useful data for chemists and other scientists

Gravemetric analysis: the process of determining the % by mass of one substance in a mixture

It is used to determine whether mining is economically feasible, to determine the composition of compounds in soil to determine weather the soil is appropriate for growing certain crops, to determine the percentage of particular pollutants in water

Identify theat the biosphere, lithosphere, hydrosphere and atmosphere contain examples of mixtures elements and compounds

Atmosphere: is a mixture of gases. (Elements: nitrogen, oxygen, argon. compounds: water, carbon dioxide, nitrogen dioxide etc.)
Hydrosphere: consists of different mixtures (largely water which has dissolved in small amounts ot the elements oxygen, nitrogen, and compound carbon dioxide, sodium, calcium and magnesium sulfates)
Lithosphere: diverse range of mixtures
Biosphere: is the part of earth in which living organisms live. All living things on earth are composed of compounds based on the element carbon.

2. Although elements are found in combinations on Earth, some are found uncombined
Explain the relationship between the reactivity of an element and the likelihood of its existing as an uncombined element.

Noble gases exist as single atoms- they do not react with anything. This is because they have full outer shell of electrons
All alkaline metals react as they only have one electron in their outer shell.
The amount if electrons in the outer shell of an atom determine how they will react.

Classify element as metals, non metals and semi metals according to their physical properties.

Metal properties: usually solids are lustrous, good conductors of electricity and heat, malleable and ductile.
Non metals are metals which do not have these properties
Semi metals are elements which have properties in between metals and non
Show More

Related Documents: The Living And Non-Living Components Of The Earth Contain Mixtures

Essay on Chemical Earth AZ

increases with temperature Elements – pure substances that cannot be separated by chemical change into simpler substances Compounds – pure substances composed of two or more elements chemically combined in fixed proportions Mixtures - two or more substances mixed together in variable proportions Homogenous Uniform composition and properties throughout Heterogeneous Variable composition and properties throughout Earth Layered structure -> core, mantle, crust Solid lithosphere, Liquid hydrosphere…

Words 847 - Pages 4

Case Study: The Golden Toad Of Costa Rica

to the fact that many dangerous chemicals are being used by humans that are slowly causing the Ozone layer around the Earth to break down, which means for the ultraviolet rays from the sun to enter the Earth with a lot more power. Thus, it is killing wildlife, mostly amphibians because they are not created strong enough to survive these ultraviolet rays. The ozone layer is a “safety belt” of naturally occurring ozone gas, that sits 15 to 30 kilometers above the Earth in the atmosphere and protects…

Words 1409 - Pages 6

Mass Spectrometry Report Essay

found naturally in all three common states of matter and it is essential for all life on Earth.[4] Water usually makes up 55% to 78% of the human body.[5] In keeping with the basic rules of chemical nomenclature, water would have a systematic name of dihydrogen monoxide,[6] but this is not among the names published by the International Union of Pure and Applied Chemistry[7] and, rather than being used in a chemical context, the name is almost exclusively used as a humorous way to refer to water. Water…

Words 2780 - Pages 12

Ion Engine Essay

NASA's missions is to advance and communicate scientific knowledge and understanding of Earth, the solar system, and the universe, and to use the environment of space for their research. For instance, NASA's Rover vehicle missions have given scientists a wealth of information regarding the probability of water and life on Mars. By studying Mars, scientists get clues about Earth and possible futures for the planet Earth. Dawn spacecraft Figure 1. Testing an ion engine. (Courtesy of NASA, Glenn Research…

Words 617 - Pages 3

Essay on the goods that factories produce

The “Goods” That Factories Produce Whether by polluting the air we breathe with smoke, dumping harmful chemicals into our water systems or by depleting non-renewable resources, factories are slowly destroying this beautiful planet we live on called Earth. Would you like to breathe in unclean air? Do you prefer to drink water polluted by deadly chemicals or polluted with harmful viruses? These are possibly some questions we may have to ask ourselves if we do not try to fix or at least mitigate…

Words 498 - Pages 2

Alka Seltzer Research Paper

Alka-Seltzer “Effervescent analgesic alkalizing tablets” were first introduced by the Dr.Miles Medical Company in 1931. Alka- Seltzer consists of sodium bicarbonate, anhydrous citric acid, and aspirin. Its uses are for upset stomachs and headaches. It was mainly advertised for overeating (Rader, 2010, p. 6). Alka- Seltzer is a nationally recognized headache treatment. (McTavish, 2004, p. 153). In order to use Alka-Seltzer one must place two tablets into a glass of water and then drink it. Once…

Words 498 - Pages 2

Essay about Science: Carbon Dioxide and Nitrogen

of the land, seas, and the atmosphere in which organisms are able to live. Hydrosphere- The parts of the land, seas, and the atmosphere in which organisms are able to live. Lithosphere-Rigid, rocky outer layer of the earth. atmosphere- The mixture of gases surrounding the earth, held in place by gravity. Biotic- Anything that is living. Abiotic-Anything nonliving Properties of Carbon Dioxide-It is a nonmetallic element It occurs in all organic compounds Producer- An organism that synthesizes…

Words 800 - Pages 4

Case Study: A Distinctly Human Quest

For this assignment, I chose to read and study “A Distinctly Human Quest: The Demise of Vitalism and the Search for Life’s Origins.” Stanley Miller and his professor Harold Urey believed that some basic chemicals were on the earth before life had even begun. Those chemicals were methane, water, hydrogen, and ammonia. Scientists Alexander Oparin and J.B.S Haldane had already proposed this idea, but were unable to properly test it. They and Urey thought that the hypothesis could be tested in the future…

Words 237 - Pages 1

Sedimentary Rock Display Essay

interaction can increase or alter the|erosion of that area. People have to plan | |temperature can expand and contract |amount of erosion and cause damage to the |construction, agriculture and road building| |materials causing them to break. Chemical |earth. Erosion can cause mountains to be |to decrease or remove the chance of | |weathering happens when water causes the |worn down over time. Rain on the ground can|erosion. There is no movement involved in | |oxidation, hydration or…

Words 663 - Pages 3

Essay about Geology exam 1

Geology Exam 1 The earth is a dynamic planet it is constantly evolving and we can see that on geologic time scale Chapter 5 1. What is a mineral? A naturally occurring solid formed by geologic process that has crystalline structure and definite chemical composition 2. What are the 8 most abundant minerals in the earths crust? (98.5%) a. Oxygen b. Silicon c. Aluminum d. Iron e. Calcium f. Sodium g. Potassium h. Magnesium 3. What is an ion? An atom with a net electric charge due to the loss or…

Words 2248 - Pages 9