Module 11
How does a solid turn into a liquid
Melting
what’s the difference between exothermic and endothermic
Exothermic releases energy while Endothermic absorbs
Are acids receivers or donors
Doners
What is the formula for molarity?
M= moles of solute over liters of solution
What is activation energy?
energy needed for a reaction to occur
The point when water vaporizes
Boiling point
What kind of energy is made when going down a hill
Kinetic
Are bases slippery or Soapy?
Both
What is the core formula for dilution?
M1,V1=M2,V2.
An increase in collisions equals__ in the rate of reaction
increase
If temperature rises, pressure
rises
l what are the different types of energy
Potential and Kinetic
What is the middle of the ph scale
7
Is saltwater a heterogeneous or homogenous mixture?
Homogenous mixture
What is the change in energy if energy started at 30 KJ and it ends at 70 KJ?
40 KJ
why can small insects walk on water
surface tension
what type of energy is made when cooking or heating something
Heat energy
Do acids have strong electrolytes
yes
What kind of ions do soluble and insoluble compounds turn into?
Soluble compounds completely dissociate into aqueous ions. Insoluble remains as solid ionic compounds.
How does an increase in temperature affect particles?
It makes particles move faster and collide more
What is it called when particles move from a higher concentration to a lower concentration
diffusion
energy cannot be destroyed or created, only transformed” is it Newton's law or Law of Conservation
Law of Conservation
Do OH ions contain hydroxide or hydrogen ions.
Hydroxide
What is the atomic mass of Oxygen?
16
Explain how catalysts and inhibitors affect reaction rate
Catalysts speed up reaction rate and inhibitors slow down reaction rate