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Calderglen High School
Calderglen High School Write the formula for silver (I) chloride AgCl answer 1
Calderglen High School What is the valency of iron in iron ( III ) oxide? 3 answer 2
Calderglen High School How is the valency of a transition metal shown in the names of its compounds? Roman Numerals in brackets eg copper (II) chloride = valency 2 answer 3
Calderglen High School What is the chemical formula of hydrogen sulphide? answer H2SH2S 4
Calderglen High School answer CaO What is the chemical formula of calcium oxide? 5
Calderglen High School What is the valency of the Group 7 elements? answer 1 6
Calderglen High School answer What is the valency of the Group 2 elements? 2 7
Calderglen High School H2H2 answer What is the chemical formula of hydrogen? 8
Calderglen High School CCl 4 answer What is the chemical formula of carbon tetrachloride? 9
Calderglen High School What is meant by the prefix:- Mono? Mono = 1 ie carbon monoxide molecules contain one oxygen atom (CO) answer 10
Calderglen High School What is meant by the prefix:- Di? Di = 2 ie carbon dioxide molecules contain two oxygen atoms (CO 2 ) answer 11
Calderglen High School What is meant by the prefix:- Tri? Tri = 3 ie sulphur trioxide molecules contain three oxygen atoms (SO 3 ) answer 12
Calderglen High School What is meant by the prefix:- Tetra? Tetra = 4 ie carbon tetrachloride molecules contain four chlorine atoms (CCl 4 ) answer 13
Calderglen High School How many atoms of each element are present in a molecule of H 2 O? H = 2 O = 1 answer 14
Calderglen High School answer How many atoms of each element are present in a molecule of C 6 H 12 O 6 ? C = 6 H = 12 O = 6 15
Calderglen High School Which elements have the most stable electron arrangement? The Noble Gases answer 16
Calderglen High School Name the compound with the formula N 2 O 4 Dinitrogen tetroxide (tetraoxide) answer 17
Calderglen High School What type of elements do not normally form bonds with other elements? The Noble Gases answer 18
Calderglen High School What type of elements bond together to form covalent bonds? Non Metals answer 19
Calderglen High School What is a molecule? A group of atoms joined together by covalent bonds answer 20
Calderglen High School Draw a diagram to show the SHAPE of a methane molecule (CH 4 ) answer H H H H C 21 tetrahedral
Calderglen High School What is the formula for copper(II) Nitrate? (You will need to use the Data Book) answer 22 Cu 2 (NO 3 ) 1 Answer - Cu(NO 3 ) 2
Calderglen High School An ionic compound has the formula X 2 O.In what Group of the Periodic Table could the element X be found? answer 23 Group 1 because it’s valency is 1
Calderglen High School What is the molecular formula for this molecule? answer 24 C2H6OC2H6OC2H6OC2H6O C C H H H H H H O
Calderglen High School What is the correct formula for this molecule? answer 25 CHCl 3 C Cl H
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1 Chapter 7 Chemical Reactions. 2 All chemical reactions l have two parts l Reactants - the substances you start with l Products- the substances you end.
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Bond Day 2: #4. Chemical Bond Day 2: #4 Before there were bonds, there had to be elements! Lets review elements & the Periodic Table THIS TABLE: No,
1 Covalent bonds l Nonmetals hold onto their valence electrons. l They cant give away electrons to bond. l Still want noble gas configuration. l Get it.
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