MODULE 1: THE SUBSTANCE EARTH
a few. 1 . one particular: Elements in Earth can be found mostly as compounds because of interactions with the atomic level * Note that matter is made of particles that are continuously going and communicating Matter: anything that has mass and uses up space. Exists in 3 different states: solid (s), liquid (l) and gas (g) The Particle Theory: " All matter consists of small , indivisible particles called atoms which can be continuously movingвЂќ | Solid| Liquid| Gas
Particle Position| Carefully packed. Vibrations only. | Less carefully packed. Vibrations and snel. | Broadly spread. Fast translation. | Volume| Particular volume| Particular volume| Takes the shape and volume of box. | Shape| Definite shape| Takes the form of the box. | | Compressibility| Negligible compressibility. | Negligible compressibility| High compressibility.
1 . 1 ) 2 The living and nonliving pieces of the earth consist of mixtures 2. Identify the between factors, compounds and mixtures when it comes to particle theory The Molecule Theory: " All subject is made up of small , and indivisible debris called atoms that are continuously movingвЂќ Elements: simplest and pure compound consisting of same type of atom. Cannot be deconstructed by normal physical and chemical means E. g. H2, O2 Mg, C, Zn, Bist du.
Compounds: pure substance consisting of two or more atoms of different types of elements chemically mixed in a set ratio. Can only be decomposed by chemical substance means E. g. INGESTING WATER, CO2, NaCl, C6H12O6.
Mixtures: impure substance including two or more substances in a changing proportion. Possibly homogenous or heterogeneous 2. Homogenous: material with uniform composition and properties through. * one particular phase
* Uniform looks
E. g. Salt water (H2O andNaCl) - Sodium is sencillo вЂ“ reduce in water вЂ“ uniform appearance. 2. Heterogeneous: element with variable composition and properties through. * Much more than 1 stage
* Non-uniform physical appearance
Elizabeth. g. Yellow sand and water - Crushed stone is certainly not soluble вЂ“ won't dissolve in water вЂ“ a couple of phases will not give consistent appearance.
Big difference between natural substances and mixtures
Natural substances (Element/Compound)| Mixture
Cannot be separated into 2 or more substance by simply physical means| Can be separated into two or more chemicals using their physical properties| Homogenous| Homogenous or perhaps Heterogeneous
Contains a fixed composition| Has varying composition with variable amounts of each natural substance| Has constant property| Displays the characteristics of each part making up the mixture.
1 ) 1 . three or more: The living and nonliving components of the entire world contain mixes * Identify that the biosphere, lithosphere, hydrosphere and ambiance contain instances of mixtures of elements and compounds Lithosphere:
* The earth's crust that contains many different types of minerals 5. A mixture of these minerals sedimental with crushed stone, rock and soil Element | Great quantity in crust
Oxygen| 46. 6
Silicon| 27. several
Aluminium| almost eight. 2
* Normal water is the most abounding compound, therefore , oxygen and hydrogen is the most abundant aspect * Sea water includes many mixed minerals just like salt Biosphere:
* Area where living organisms are simply
* The majority of living things are composed of cellular material which contain complicated carbon compounds, such as sugars, fats and proteins Element| Abundance
* Part of a blend of gases above the earth's area * Nitrogen and o2 are the many abundant fumes in the atmosphere Gas| Formula
Nitrogen| seventy five. 3
Oxygen| 23. you
Argon| 1 . 3
2 . 1 . 1: Although the majority of elements are simply in blends on Earth, a few elements are found uncombined * Explain the relationship between the reactivity of an factor and the probability of its existing as an uncombined aspect...