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Chem Chap 3

Section 1

QuestionAnswer
What does atom mean in Greek indivisible
The transformation of a substance or substances into one or more new substances is known as a Chemical reaction
The law that states that mass is neither created nor destroyed during ordinary chemical reactions or physical changes law of conservation of mass
The fact that a chemical compound contains the same elements in exactly the same proportions by mass regardless of the size of the sample or source of the compound is known as the law of definite proportions
If two or more different compounds are composed of the same two elements, then the ratio of the masses of the second element combined with a certain mass of the first element is always a ratio of small whole numbers law of multiple proportions
Dalton's Atomic Theory 1 -2 Says 1. All matter is composed of extremely small particles called atoms. 2. Atoms of a given element are identical in size, mass, and other properties;atoms of different elements differ in size, mass, and other properties.
Dalton's Atomic Theory 3 - 5 says 3. Atoms cannot be subdivided, created, or destroyed. 4. Atoms of different elements combine in simple whole-number ratios to form chemical compounds. 5. In chemical reactions, atoms are combined, separated, or rearranged.
the fact that chemical reactions involve merely the combination, separation, or rearrangement of atoms and that during these processes atoms are not subdivided, created, or destroyed by what law The Law of the conservation of mass
An atom of carbon, C, and an atom of oxygen, O, can combine chemically to form a molecule of carbon monoxide (CO)
the law of multiple proportions, in the case of the carbon oxides, the 2-to-1 ratio of oxygen masses results because Carbon dioxide always contains twice as many atoms of oxygen per atom of carbon as does carbon monoxide
All matter is composed of atoms
atoms of any one element differ in properties from atoms of another element which remains unchanged
Created by: tbstinso