CHEM 1020 Final Exam Review
The smallest identifiable unit of an element - correct answer Atom
Two or more atoms joined in a specific arrangement - correct answer Molecule
The study of matter; the study of the behavior of atoms and molecules - correct answer Chemistry
Anything that has mass and occupies space - correct answer Matter
In which state of matter do atoms have a fixed volume and rigid shape, vibrate but cannot move past
one another, and are tightly packed together in a specific arrangement? - correct answer Solid
In which state of matter do atoms have a fixed volume but a variable shape, are free to move
around/slide past one another, and are not as tightly packed? - correct answer Liquid
In which state of matter do atoms have variable shape and variable volume, always assume the shape
and volume of their container, are free to move anywhere, and have LOTS of space between each other
and are compressible? - correct answer Gas
What is a standard quantity used to specify measurements called? - correct answer Unit
A measure of the quantity of matter in an object - correct answer Mass
A measure of the gravitational pull on matter - correct answer Weight
The measure of kinetic energy of atoms/molecules in matter. - correct answer Temperature
Which temperature scale has a boiling point of 212 degrees? Which has a boiling point of 100? - correct
answer 212 Fahrenheit
, 100 Celsius
A combination of units is called - correct answer Derived units
A measure of space - correct answer Volume
Ratio of mass to volume - correct answer Density
All non-zero numbers are - correct answer significant
Interior zeros are - correct answer significant
Zeros to the left of nonzero numbers are - correct answer not significant
______ refers to how close together your data points are to each other - correct answer Precision
_______ refers to how close your data points are to the true value - correct answer Accuracy
If your results are wild, you have ________ _______ - correct answer random error
If your results are skewed in one direction you have ________ ________ - correct answer systematic
error
What are the 4 components of the Atomic Theory? - correct answer 1. Each element is composed of tiny,
indestructible particles called atoms
2. All atoms of the same element have the same mass and other properties that distinguish them from
atoms of other elements.
3. Atoms combine in simple whole number ratios to form compounds
4. Atoms of one element cannot change into atoms of another element.
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