Chemistry > QUESTION PAPER & MARK SCHEME > CHEM 101-Straighterline Exam 1. 100% Accurate Answers. Graded A +, For help with Straighterline cour (All)

CHEM 101-Straighterline Exam 1. 100% Accurate Answers. Graded A +, For help with Straighterline courses, reach me at [email protected]. I guarantee Grade A+ whih is 95% and above

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A substance in which the atoms or molecules are free to move relative to one another. It always assumes the shape and volume of its container. - Ans-gas A substance in which the atoms or molecules ... pack closer than a gas, but are still able to freely move relative to one another. It exhibits a fixed volume, but not a fixed shape. - Ans-liquid A substance in which the atoms or molecules are fixed at a specific position. It exhibits a fixed volume and rigid shape. - Ans-solid A solid that has atoms and molecules in a repeatable pattern. - Ans-crystalline solid A solid whose atoms or molecules are not arranged in a specific pattern. - Ans-amorphous solid A substance does not vary its composition within the substance nor between samples of the same substance. - Ans-pure substance A physical combination of substances in which each substance keeps its own physical and chemical properties. - Ans-mixture A physical combination of substances of non-uniform composition. - Ans-heterogeneous mixture A physical combination of substances of uniform composition. - Ans-homogeneous mixture A pure substance that cannot be broken into component parts. Examples include helium, nitrogen, and oxygen. - Ans-element A pure substance made up of two or more elements. - Ans-compound A quantitative observation. - Ans-measurement Any division of a quantity that may be used in a measurement. - Ans-unit The SI unit for length. - Ans-meter The SI unit for time. - Ans-second The SI unit for mass. - Ans-kilogram The standard unit of measurement used to count atoms. - Ans-mole A unit system abbreviated as SI that is used [Show More]

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