Basics of Chemistry
What branch of science studies matter and how it changes?
Chemistry
Which state of matter has particles packed closest together?
Solid
What do we call matter made of only one type of particle?
Element
What do we call a mixture that is uniform throughout?
Homogenous or solutions
What is the substance that does the dissolving called?
Solvent
What is anything that has mass and takes up space called?
Matter
In which state of matter do particles move the fastest?
Are elements considered pure substances?
Yes
What type of mixture has visibly different parts?
Heterogenous or mechanical mixtures
What is the substance that gets dissolved called?
Solute
What is all matter made out of
Particles
What happens to particle movement when temperature increases?
Particles move faster
What is a compound?
A compound is a pure substance made of two or more elements
What is a solution?
A uniform mixture of two or more pure substances
What is the universal solvent?
Water
What theory explains how particles behave in solids, liquids, and gases?
The particle theory of matter
Which particle theory statement explains why gases can be compressed?
There is a lot of space between gas particlces
What makes a pure substance different from a mixture at the particle level?
A pure substance has only one type of particle throughout
Is sugar water a mechanical mixture or a solution? Why?
solution
What term describes how much solute is in a solution?
Concentration
Which idea of particle theory explains why substances expand when heated?
Particles move faster and spread farther apart when heated
How is particle attraction different in solids compared to gases?
solid particles are very attracted together, gas particles have weaker attraction
Why does a pure substance always have the same properties everywhere?
Its composition is uniform
Give an example of a meal you can have that has one mechanical/heterogenous mixture and one solution/homogenous mixture
A smoothie (solution/homogenous)
Name two ways to increase how fast a solute dissolves.
Stirring and increasing temperature