Chemistry Exam 1 Practice Questions With
100% Verified Answers
_____ do not form Ions - answerNoble Gases
A tentative explanation to an observation is a _______ - answerHypothesis
The metric unit for volume is - answercubic meter (m^3)
The metric unit for density is - answerkg/m^3
The convers...
What state of matter has a fixed volume but changes shape? - answer✔Liquid
A pure substance has - answer✔only one type of atom/molecule
A mixture has - answer✔more than one type of atom/molecule
A homogenous mixture has - answer✔uniform composition and nonvisible parts
A heterogenous mixture has - answer✔varying composition and visible parts
Physical properties are - answer✔characteristics of the substance, does not depend on
quantity/amount
Ex. boiling point, color, density, etc.
Chemical properties are - answer✔properties observed when a chemical change occurs
Ex. flammability, corrosiveness, reactivity with acids and bases
Sold --> gas is - answer✔sublimation
Gas --> solid is - answer✔deposition
Gas --> liquid is - answer✔condensation
A chemical change is - answer✔a substance converted to another substance through chemical
reaction
Reactants --> chemical change --> products
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