CHEM 101-Straighterline Exam 1 Questions with Certified Solutions
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Course
CHEM 101-Straighterline
Institution
CHEM 101-Straighterline
CHEM 101-Straighterline Exam 1
Questions with Certified Solutions
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. gas
A substance in which the atoms or molecules pack closer than a gas, but are st...
CHEM 101 -Straighterline Exam 1 Questions with Certified Solutions 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. ✔✔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. ✔✔liquid A substance in which the atoms or molecules are fixed at a specific position. It exhibits a fixed volume and rigid shape. ✔✔solid A solid that has atoms and molecules in a repeatable pattern. ✔✔crystalline solid A solid whose atoms or molecules are not arranged in a specific pattern. ✔✔amorphous solid A substance does not vary its composition within the substance nor between samples of the sam e substance. ✔✔pure substance A physical combination of substances in which each substance keeps its own physical and chemical properties. ✔✔mixture A physical combination of substances of non -uniform composition. ✔✔heterogeneous mixture A physical comb ination of substances of uniform composition. ✔✔homogeneous mixture A pure substance that cannot be broken into component parts. Examples include helium, nitrogen, and oxygen. ✔✔element A pure substance made up of two or more elements. ✔✔compound A quan titative observation. ✔✔measurement Any division of a quantity that may be used in a measurement. ✔✔unit The SI unit for length. ✔✔meter
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