The Atom
The nucleus
The chemical symbol for Oxygen is…
The substances you start with in a reaction are…
reactants
Matter with a definite shape and volume
Solid
the gas we breathe for survival
oxygen
Electrons
This element is the lightest element on the periodic table
hydrogen
what is an exothermic reaction
A reaction that gives off heat
This state of matter takes the shape of its container
Liquid
this common kitchen ingredient is sodium chloride
salt
This number tells you how many protons an atom has
The atomic number
Elements in the same vertical column are called..
groups or families
When iron reacts with oxygen to form this reddish compound to rust, this can also be known as
a) chemical change
b) oxidationc) crystalization
d) filtration
b)oxidation
Gas Particles move faster when this increases
a) Pressure
b) Temperature
c) Volume
d) amount of gasb) Temperature
tooth paste
Where are electrons found
a) the nucleus
b)in between orbits
c)electron cloud/orbital
C) electron cloud/ orbital
Noble gasses are famous for being
un reactive and stable
What is decomposition?
A reaction in which a compound breaks down into simpler substances
the process if a solid being turned directly to a gas
This liquid is known as the “Universal Solvent:
a)alcohol
b)oil
c)waterd)vinegar
c)water
What is an Isotope?
Atoms of the same element with different numbers
This element is most common in the earths crust
a)iron
b)copper
c)calcium
d)aluminum
d) aluminum
This law states that matter cannot be created or destroyed
The law of conservation of mass
The temperature at which a liquid becomes a gas
a) Boiling Point
b)melting point
c)freezing point
d)condensation point
CO2 is the gas that makes ____ fizzy
Soda