CHEM 1103 Study Guide - Midterm Guide: Ernest Rutherford, Robert Andrews Millikan, Cathode Ray

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whiteimpala998

27 Nov 2016

School

University of Arkansas

Department

Chemistry

Course

CHEM 1103

Professor

Matthew Gerner

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Document Summary

The structure of the particles that compose matter determines the properties of matter. Chemistry is the science that investigates the properties of matter by examining the atoms and molecules that compose matter it. Classifying matter based on the particles that compose it (1. 2) We classify matter according to its state (which depends on the relative positions of interactions between particles) or according to its composition (which depends on the type of particles). Matter has three common states: solid, liquid, and gas. Matter can be a pure substance (one type of particle) or a mixture (more than one type of particle) A pure substance can either be an element, which cannot be chemically broken down into simper substances or a compound, which is composed of two or more elements in fixed proportions. A mixture can be either homogenous, with the same composition throughout, or heterogeneous, with different compositions in different regions. Science begins with the observation of the physical world.

Related Questions

1) Classify each of the following as a mixture, a compound, or an element?

table sugar, propane, bronze, tea, vinegar, dry ice, oxygen, aluminum

2) Select the statements that pertain to elements. Select all the statements that apply.
a) These can be broken down by physical means.
b) These cannot be broken down by chemical means.
c) These combine chemically to form new substances; they are building blocks of matter.
d) These are chemical combinations of simpler forms of matter.
e) These are pure substances.

3) Which of the following are chemical changes? Check all that apply.
a) sugar is dissolved in water
b) a warm coke bottle fizzes when opened
c) the copper roof turns green over time
d) baking soda is dissolved in vinegar and bubbles appear
e) a fog appears on your windshield in cold weather

4) Classify each property as physical or chemical.

a)susceptibility to rust

b) flammability

c) boiling point

d) melting point

e) conductivity

f) color

5) Which of these substances are elements? Check all that apply.

a) silicon

b) iodine

c) lead

d) quartz