What's the Matter?
What is the ability of a material to be drawn into thin, long wires?
Ductility
What is the ability to do work?
Energy
What type of mixture has a uniform appearance?
Homogenous mixture
How many Hydrogen atoms are in H2O?
Two
What type of change does not change the actual composition of a substance?
Physical change
What is the study of the movement and conversion of energy (especially thermal energy)
Thermodynamics
What state of matter has a fixed volume but not shape?
Liquid
Convert -2 oF to Celsius.
F2 is what kind of element?
Diatomic element
What is nuclear energy?
The energy release when the nucleus of an atom is broken down or added onto
As particles gain more thermal energy, what happens to the speed of the particles?
They speed up
Convert 473.2 oC to Fahrenheit.
883.76 oF
When organizing matter, we can put it into what two broad categories?
Pure substances and mixtures
What is thermal energy?
The sum of the kinetic energy of the particles in an object
What is the kinetic-molecular theory of matter?
It describes the motion of particles in matter. Limits the movement of particles towards and away from each other.
List how many of each atom are in Al2(SO4)3
3 of sulfur
12 of oxygen
What is distillation, and how does it work?
Distillation - the separation of mixtures by boiling
It involves a mixture with two substances with different boiling points. As the mixture is heated up, the substance with the lowest boiling point evaporates and is separated
What is the difference between exothermic and endothermic processes.
Exothermic - one that releases thermal energy
Endothermic -one that absorbs thermal energy
Describe the three laws of thermodynamics.
1st - Matter and energy cannot be created or destroyed, but can be transformed or transferred between objects
2nd - The entropy of an isolated system can never decrease
3rd - absolute zero is unattainable
Convert 341.3 K to Fahrenheit.
154.67 oF