Atoms, Elements, Compounds & Mixtures
Task 1: Rewrite the sentences if you think they are wrong
All matter is made of tiny particles called elements
All matter is made of tiny particles called atoms.…………………
An element is a substance made of one atom
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Air, sea water and oxygen are mixtures
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Compounds are easily separated as their atoms are not chemically joined together
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Answers: 2
Chemistry, 22.06.2019 18:00
What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j
Answers: 1
Chemistry, 22.06.2019 19:00
Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions
Answers: 3
Chemistry, 23.06.2019 09:30
The mass of a proton is approximately equal to the mass of
Answers: 1
Atoms, Elements, Compounds & Mixtures
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