Definitions
Anything that has mass and takes up space
What is matter?
Matter can be broken down into these two categories
What are pure substances and mixtures?
Most elements want to share 8 electrons in order to be stable. Which two are exceptions to this octet rule?
What are boron and hydrogen?
Oil is to water as nonpolar is to....
The shape of CH4
What is tetrahedral?
What is a phase change?
These can be physically separated
What are mixtures?
Polar solutes dissolve in polar solvents. Nonpolar solutes dissolve in nonpolar solvents.
What is "Like Dissolves Like"?
CCl4 is to London dispersion forces as NH3 is to...
What is hydrogen bonding?
The electronegativity difference AND polarity of the N-H bond in NH3
What is 0.9; polar ?
Another word for a homogeneous mixture
What is a solution?
This is typically represented by a symbol or a formula
These are things that break apart into ions when dissolved in water and conduct electricity.
What are electrolytes?
The bond angle of H-O-H in water.
What is 104.5o?
A special colloid that has a mixture of oils and water (both polar and nonpolar parts)
What is an emulsion?
If the mixture is not uniform throughout, it is said to be this.
The phenomenon that is used to differentiate colloids from true solutions.
What is the Tyndall Effect?
Solute: gets dissolved
Solvent: ?
What is does the dissolving?
what is zero?
Using the Tyndall effect, this mixture scatters light so much that it appears to be absorbed
What is a suspension
This mixture has medium sized particles that partially refracts (or bends) light in the Tyndall Effect
What is a colloid?
The way we determine if our substance is an electrolyte or not.
What is use a conductivity tester?
salt: water (soluble)
water: vinegar (?)What is miscible?
The shape of CH2O
What is trigonal planar?