Chapter 4 Elements, Compounds, and Mixtures: Directed Readings
Read the chapter, too. Don't use THIEVES... I take back everything I said before.
Terms in this set (39)
Is weighing a physical or chemical change? (Yes or no)
A pure substance that cannot be separated into simpler substances by physical or chemical means is a(n) _______
A substance that contains only one type of particle is a(n) ____ _________
The amount of an element present does not affect the element's __________
All elements can be classified as metals, metalloids, or _________.
An element that is shiny and that conducts heat and electric currents well is a(n) _____
An element that conducts heat and electric currents poorly, and can be a solid, liquid, or gas is a(n) ________
Elements that have properties of both metals and nonmetals are __________.
Do compounds need a specific mass to ratio?
When two or more elements are joined by chemical bonds to form a new pure substance, we call that new substance a(n) ________.
A compound is different from the ________ that reacted to from it.
Compounds each of their own ________ __________. (I know it's vague, but just think about it...)
A poisonous, greenish yellow gas
A soft, silvery white metal that reacts violently with water
What compound helps give carbonated beverages their "fizz"?
The only way to break down a compound is through a(n) ________ change.
Aluminum is produced by breaking down the compound ________ _____.
Plants use the compound ______ _______ in photosynthesis to make carbohydrates
A pizza is a(n) _______.
A combination of two or more substances that are not chemically combined is a(n) _______.
When two or more materials combine chemically, they form a(n) ________
Mixtures are separated through ________ changes.
Granite can be pink or black, depending on the _____ of feldspar, mica, and quartz.
Do solutions appear to be more than one substance?
The process in which particles of substances separate and spread evenly through a mixture is known as __________.
In a solution, the ______ is the substance that is dissolved.
In a solution, the _______ is the substance in which the solute is dissolved
Salt is _______ in water because it dissolves in water.
When two gases or two liquids form a solution, the substance that is present in the largest amount is the _______.
A solid solution of metals or nonmetals dissolved in metals is a(n) _____
A measure of the amount of solute dissolved in a solvent is called _____________.
The ability of a solute to dissolve in a solvent at a certain temperature and pressure is called __________,
Solubility of solids in liquids tends to (increase/decrease) with an increase in temperature.
Solubility of gases in liquids tends to (increase decrease) with an increase in temperature
Can suspensions scatter light?
A mixture of particles that are large enough to scatter light but are not heavy enough to settle out
A mixture of two or more uniformly dispersed substances
A mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas