Quiz by Entela Ndrecka
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- Q 1/35Score 0The law of conservation of mass follows from the concept that29atoms can be destroyed in chemical reactions.atoms are indivisible.matter is composed of atoms.atoms of different elements have different properties.
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- Q1The law of conservation of mass follows from the concept thatatoms can be destroyed in chemical reactions.atoms are indivisible.matter is composed of atoms.atoms of different elements have different properties.30s
- Q2The composition of the two oxides of lead, PbO and PbO2, are explained by theatomic law.law of conservation of mass.law of multiple proportions.periodic law.30s
- Q3Who first proposed an atomic theory based on scientific knowledge?Dmitri MendeleevRobert BrownJons BerzeliusJohn Dalton30s
- Q4According to Dalton’s atomic theory, atomsof each element are identical in size, mass, and other properties.are destroyed in chemical reactions.can be divided.of different elements cannot combine.30s
- Q5Which of the following is NOT part of Dalton’s atomic theory?In chemical reactions, atoms are combined, separated, or rearranged.Atoms cannot be divided, created, or destroyed.The number of protons in an atom is its atomic number.All matter is composed of extremely small particles called atoms.30s
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