Periodic Table
Who is the father of the periodic table?
What is matter?
Anything that has mass and takes up space
What are the three states of matter?
Solid, liquid gas
What are the two kinds of mixtures
homogeneous and heterogeneous
What element is in group 2, period 4?
Calcium!
How do we know ice is less dense than liquid water, without measuring?
Ice floats!
What is mass? What tools do we measure it with? What units do we measure it in?
The amount of stuff in something. Scale, grams, kg
What are the characteristics of a solid?
Shape and volume?
Constant shape and volume
What is the difference between a compound and an element?
Compound has more than one element chemically bonded
What element has 36 protons?
Krypton
What is the density of a substance that is 5 grams and takes of 5ml volume?
1 g/ml!
What is volume? What tools do we measure it with? What units is it measured in?
The amount of space something takes up. Graduated cylinders, rulers. Milliliters and cm3
What are the characteristics of a gas?
Shape and volume?
Changes shape and volume
What is salt water in the matter chart? Be as specific as possible
Homogeneous mixture
How many protons, electrons and neutrons does oxygen have?
8, 8, 8
Hotter -- less dense
Colder -- denser
Is air matter? How do we know?
What is it called when a gas turns to a liquid
Condensation
What kind of mixture is salt and sand?
Heterogeneous
Name an element that is likely to have similar chemical and physical properties to sodium?
Lithium, Potassium, Rubidium, Cesium Francium
In terms of density, why is it a bad idea to fill a glass jar totally with water and freeze it?? What will happen?
It will break because ice is lower density and will expand.
Where did all matter originally come from?
The big bang?
What is necessary to add (not a physical thing) to a solid to turn it into a liquid? Think of ice!
What kind of matter is H2 gas? Be as specific as possible.
Element!