Periodic Table
Who received credit for writing the periodic table?
Dmitri Mendeleev
What is density conceptually?
The amount of stuff per unit volume!
anything that takes up space and has mass
What are the three states of matter!
solid, liquid, gas!
What is a heterogenous mixture??
Parts can be easily distinguished!
Which element is in period 3, group 2 of the periodic table?
Magnesium
What is the equation for density
D=m/v
What is mass and what units do we measure it with?
The amount of 'stuff' -- grams or kg etc
Properties of a liquid?
Fixed volume, variable shape
What are the two subdivisions of substances?
Element and compound!
How many protons, electrons, and neutrons does oxygen have?
Which is less dense, hot or cold air!
Hot air!
What is volume and what units do we measure it with?
what has neither a fixed shape or fixed volume
gas!
What is a homogenous mixture?
Parts are evenly mixed throughout
What charge do protons have
Positive!
We'd pour them and see which one floated!
How would we measure the volume of an irregularly shaped rock?
Water displacement!
What is it called when a gas changes to a liquid?
What kind of matter is salt water? In the classifications chart.
Homogenous mixture!
Chlorine, bromine, iodine, Astatine
It will expand because ice is less dense and break the glass!
How do we know air is matter!
It takes up space and has volume!
Heat!
What kind of matter it H2 gas?
Element!