Periodic table
How many electrons does Sodium want to lose
1
The measurement that describes the amount of space an object takes up
What is Volume
Adding heat or taking away pressure can cause a liquid to do this
What is evaporate or turn into a gas.
Which of the following is a good example of a physical property: has a mass of 6kg, circular in shape, very heavy, has a density of 7kg/L
Density of 7kg/L
All of the others could be true about almost any substance.
Burning paper is an example of this type of change
What is chemical
This is the charge of an Oxygen ion.
What is negative 2
The measurement that describes how much stuff is in an object.
What is mass.
Taking heat away or adding pressure can cause a liquid to do this.
What is freeze or turn into a solid
Which of the following is NOT an example of a physical property: magnetic, conducts electricity, liquid, freezes at zero degrees Celsius.
Liquid is not an example because you can melt almost anything. You must at least say liquid at room temperature or give a temperature.
Name three indications of a chemical reaction
Release of energy (explosion) or absorption of energy, change in color, change in taste, change in smell, formation of bubbles, formation of solid (precipitate)
This will happen when you mix Neon with almost anything else.
Nothing! It already has 8 valence electrons
The equation for finding density.
What is Mass divided by Volume
This is why it is easier to boil water in the mountains
Because there is less air pressure pushing down on the water.
Name two properties of metals
Conductors, malleable, lustrous or shiny
Melting wax on a candle is an example of this type of change.
What is physical change
These positively charged particles are found in the nucleus (middle) of the atom.
What are protons.
The density of a rock with a mass of 6g and a volume of 2mL
What is 3g/mL
This is a measure of the average kinetic energy of the molecules in an area.
What is Temperature.
Name an element that chlorine would definitely want to react with.
Anything on the left side of the table.
Rust forming on a bicycle is an example of this type of change.
What is chemical change.
This is the name for the very outside layer of electrons
What are valence electrons.
What happens to the density of an object when it cools down.
What is decreases
Explain why some things are easier to melt than others
Because they don't like their neighbors all that much
If the physical properties of an object have changed then the object has undergone a ________ change.
Photosynthesis is an example of this type of change.
What is chemical change.