Chemistry: Principles and Practice (3rd Edition)
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Dalton Atomic Theory more
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Dalton transformed Democritus's idea on atoms into... more
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Three subatomic particles that make up an atom are... more
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$9,200,000,000,000 x (0.166 mm/$1) x (1 m/1000 mm... more
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1 trillion= 1000 billion more
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Dalton's atomic theory proposed that all matter ... more
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Therefore;Hydrogen peroxide H2O2 is formed by the ... more
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Dalton's atomic theory says that atoms are neither... more
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The Law of Constant Composition says that a pure ... more
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Atom is the basic unit of any matter. This is the ... more
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An atom is made up of three major particles which ... more
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Rutherford experiment consist in bombard alpha ... more
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Rutherford performed an experiment by using the ... more
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All the neutrons and protons are present at the ... more
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The atomic number refers to the number of a ... more
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Mass number is the sum of the number of protons ... more
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Isotopes : Element having same atomic number and ... more
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Striking of alpha particles with thickened ... more
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Atomic Number = Number of protons + Number of ... more
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Mass number = protons + neutrons more
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By knowing the symbol of the element, you will ... more
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For elements with more than one stable or long-... more
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A number before an element shows number of atoms ... more
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The molecular formula of methane is made up of two... more
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N2O4 which indicates that this molecule is ... more
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The formula CO indicates that an individual ... more
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Molecular compounds are commonly called as ... more
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When the name of the anion ends in -ate, the name ... more
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NO is called as nitric oxide or nitrogen monoxide ... more
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The formula shows that there are 3 chloride toms, ... more
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Ionic compounds are generally composed of a metal ... more
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Molecular compounds on the other hand they have ... more
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Explanation is part of the answer. more
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Properties of NaCl that proves Melting point = 801... more
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Diagram / picture is as: more
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Molten ionic compounds conduct electricity because... more
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group are the vertical columns on the periodic ... more
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Here the element is chlorine atom with 20 neutrons... more
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A= protons + neutronsZ= protons more
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The mass number A is the sum of the number of ... more
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Number of neutrons = 6 Number of protons = 5 ... more
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25 protons on the periodic table is Manganese (Mn... more
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1.- General symbol ZAXqWhere:Z = protons + ... more
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AnsAtomic number= Number of proton = 23Number of ... more
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Element is 12852Tesuperscript is mass number = ... more
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This element will have a charge of 2- because the ... more
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The superscript is the sum of protons and neutrons... more
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First of all you have to check that the number of ... more
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Since this element has 10 electrons and 12 protons... more
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1.- General symbolZAXqWhere:Z = protons + ... more
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Silicon-29 has 14 electrons 14 protons and 15 ... more
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(atomic number) protons=35neutrons=44electrons=... more
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protons = 23 neutrons = 28electrons = 20Charge = ... more
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The atom with 53 protons and 74 neutrons is Iodine... more
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The number of protons correspond to the atomic ... more
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Atomic Number: 20Mass Number: 40Charge: +2Number ... more
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First of all I created the table from the data ... more
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atomic mass=Σ(isotopic mass)(abundance)atomic mass... more
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The one with 78.918u is written as 79Br while ... more
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In the periodic table, this element given is in ... more
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A group is a column in the periodic tableOxygen is... more
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Representative elements are also known as main ... more
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Potassium is in Group 1A so it is a representative... more
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The elements in which last electron enters in s ... more
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Representative elements are elements found in s ... more
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Platinum is in the middle of the table so it is a ... more
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The alkaline earth metals make up Group 2A of the ... more
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The rows of the periodic table are called periods... more
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NOCl2Molecular Mass in grams per moleMolar mass ... more
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As we know that to find the molecular mass of a ... more
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P4O10: = 4(30.97) + 10(16) = 283.88 g/mol more
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The ionic compound must be neutral overall so ... more
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The compound must be neutral overall so there must... more
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Y has a valency of +3Cl has a valency of 1 thus ... more
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Named calcium chloride ( CaCl2), the compound is ... more
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We need to establish the cation and the anion in ... more
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Lithium is in Group 1A so it forms a charge of +1 ... more
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Yttrium has the noble gas configuration of [Kr]... more
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Permanganate contains the manganate (VII) ion (Mn7... more
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Chromate has a 6+ oxidation state so it binds to 4... more
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This is a straight chain-alkane composed of 6 ... more
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Formula of iron(III) sulfate is Fe2(SO4)3. It is ... more
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phosphorus tribromide Is molecular because all of... more
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Atomic Number: 14Mass Number: 28Charge: -2Number ... more
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The atomic mass of 6Li is 6.015 amu, with the ... more
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When writing atomic symbols, the number of protons... more
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Molecular mass unit = kg/mol or g/molFormila mass ... more
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To convert the number of atoms to moles, divide ... more
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The empirical formula expresses the simplest ... more
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We are given the following unbalanced chemical ... more