Atoms and
Molecules
Molecules
What chart has all the elements on it?
The Periodic Table
What is a metallic bond?
a bond with a metal ion
What is a hydrogen bond?
A bond containing a hydrogen atom
What is inertia?
The initial force used to move something
In what direction does friction always move?
opposite direction of moveement
Are molecule made up of atoms or are atoms made of molecules
molecules are made of atoms
Do double, triple, and multiple bonds exist.
Yes
Are induced dipoles permanent?
No
What is the stretching force when springs are stretched?
Tension
Why is velocity a vector and speed is not?
it has direction and magnitude (how fast)
What are the 3 phases of matter
solid, liquid, gas
To become a negative ion does an atom lose or gain and electron?
Gain an electron
What does Solubility depend on?
the attraction between solute particles
When an object changes in state of motion by speeding up, slowing down or changing direction we say it undergoes what?
Acceleration
80 km/hr
What is the underlying cause of phase changes?
Transfer of energy
True of False. The number of covalent bonds an atom can form is equal to the number of additional electrons it can attract.
True
What is the difference between a homogeneous mixture and a heterogeneous mixture?
If you pull a box with 10 N of force to the left and your friend pulls in the opposite direction with 15 N of force. In what direction will the box move?
right with 5 N of force
On what 2 things does friction depend on?
Kind of material and how hard objects are pressed together
Why do ice cubes left in the freezer for too long get smaller?
sublimation
What becomes greater as the distance between 2 atoms on the periodic table and their electronegativities become greater?
polarity
What is the difference between a saturated and unsaturated solution?
saturated has reached the limit of solubility and unsaturated are diluted and have not reached the limit
What is the difference between mass and weight?
mass is the matter that makes up something and weight is the force of an object due to gravity?
During what actions are objects at equilibrium?
at rest and when moving in a straight line at a constant speed