One word answers
Compounds can only be separated by _____ means while mixtures are separated by ____ means.
What is Chemically and Physically
Bond breaking
What is endothermic?
The hybridization of CH4
What is sp3
CaI2 Ca has a larger charge and K and is a smaller ion
This process separates mixtures based on polarity
What is chromatography
The products of combustion reactions are always
What is CO2 and H2O?
Negative delta H
What is exothermic?
The bond angle between atoms in a tetrahedral shape:
What is 109.5
All molecules contain this type of IMF
What are london dispersion forces?
What is LESS
1. Particles move in rapid straight line motion
2. KE is proportional to Kelvin temperature
3. Particles have no volume
4. IMFs are negligible
5. Collisions are elastic
The surroundings increase in heat while the system loses heat
Explain why XeF2 is a linear molecule.
It has two bonded atoms with three lone pairs circling in an opposite plane.
For hydrogen bonding to occur, Hydrogen must be bonded to one of these three highly electronegative atoms:
F, O or N
In PES diagrams, the larger the binding energy, the ______ to the nucleus the electron.
What is CLOSER
Which of these gasses is most likely to deviate from ideal gas behavior and why?
He, Ne or Ar?
Ar is the largest, and ideal gasses are based on gasses having negligible, or close to negligible volumes.
The products have a higher energy content than the reactants
What is endothermic
To what family does a square pyramidal shape belong? Identify the number of bonded pairs and lone pairs:
What is a family 6? Five bonded atoms, one lone pair.
What enables metals to be good electrical conductors?
What are free flowing & delocalized electrons ?
Elements in the same ______ have similar chemical properites.
What is GROUP
This formula can be used to find the molar mass of a gas when you know it's temperature, pressure and density:
What is MM = dRT/P
What is exothermic
Name all the shapes that can be a family five:
What are trigonal bipyramidal; see saw; T shape and linear
Interstitial allows are made when smaller atoms fit into the gaps between larger atoms while substitutional allows are made when different atoms of similar size are substituted into a crystal lattice.