Condensation is the physical change between a gas to a liquid.
What is vaporization? Describe both kinds.
Vaporization is the physical change between a liquid to a gas. Evaporation occurs from the surface of the liquid and boiling occurs from the bottom of the liquid.
What would happen to a liquid that went through an endothermic reaction?
A liquid that has undergone an endothermic reaction will gain heat and, if substantial enough, will vaporize.
How many classifications are there for chemical reactions? What are their names?
There are five types of classifications: Combustion, Decomposition, Synthesis, Single displacement, Double Displacement.
H2 + O --> 2H2O is classified as what kind of reaction?
These two reactants are being bonded together to yield ONE product, so this is an example of Synthesis.
What is an element? What is a compound? How do these different from mixtures?
An element consists of only one kind of atom that cannot be broken down into any other parts. Elements can be both singular atoms or molecules. Examples of this would be O2 (molecule) and He (atom). A compound consists of atoms or molecules that are chemically bonded together. These can be broken down into simpler elements but only through chemical reactions.Examples of this would be H2O and HCl. A mixture are two or more elements/compounds/molecules that are PHYSICALLY mixed together and can be relatively easy to separate.
Balance this equation:
Al + 3O2--> Al2O3
4Al + 3O2 --> 2Al2O3
What is this elements name?
What period would you find this element?
You'd find this element in period 5
What group would you find this element?
You'd find this element in group 14
How many valence electrons does it have?
Tin has 4 valence electrons
How many protons does it have?
How many electrons does it have?
What is its mass number?
Metals, Metalloids and Nonmetals
What are the names for each group of the periodic table?
Alkali metals, Alkaline Earth Metals, Lanthanides and Actinides, Transition Metals, Boron Family, Carbon Family, Nitrogen Family, Oxygen Family, Halogens and Noble Gases
What is the formula for density?
Using the formula, What is the density of an object that has a mass of 50g and a volume of 20mL?
What is the mass of an object that has a density of 12g/cm3 and a volume of 2cm3?
What is 10m + 2.8km + 0.05mm?
This element is in group 2, period 7
This element is an alkali metal in period 2
This element has 27 protons
This element has 8 valence electrons and is in period 4