Periodic Table
An atomic number is the number of protons, where as the mass number is the protons + neutrons
What do all acids produce?
Hydrogen
Type I and Type II Binary Ionic compounds form when a ____________ forms with a ____________
metal forms with a nonmetal
what two components must every hypothesis have?
1. It is testable
2. It is objective
Which axes are the independent and dependent variable on? Side of a table?
Independent: x-axis, left side
Dependent: y-axis, right side
What is the difference between a period and a group
groups are vertical, and will have similar chemical properties. Periods are horizontal
What do binary acids contain? Oxyacids?
Binary: Hydrogen and a nonmetal
Oxyacids: Hydrogen, oxygen, and another element
How do you label charge on the metal ion of type II binary ionic compounds?
With roman numerals
What is the difference between an independent and a dependent variable?
An independent variable is a variable that is purposely changed, a dependent variable changes in response to the independent variable.
What is the formula for percent error?
((Experimental - True)/True) x 100 OR ((True - Experimental)/True) x 100
What is the common charge of an Oxygen ion
2-
What is the compound name for HCl?
Hydrochloric Acid
What is the name of MgO?
Magnesium Oxide
In an experiment testing how fertilizers affect the growth of a plant, what might 3 controls be?
type of plant, amount of water, soil type, light, pot size, room the plants are in, time of day that they're measured, etc
What is a directly proportional relationship? Inversely proportional?
Directly: as independent variable increases, dependent variable increases
Inversely: as independent variable increases, the dependent variable decreases
What is/are the common charge(s) of rubidium
3+, 4+
What are the two rules for naming oxyacids?
2. The ending ix acid is added to the stem name
What is the formula for Lead (II) Nitrate?
Pb(NO3)2
What format should the materials and procedures be in?
List format
How do you connect data points on a graph
Give 3 characteristics of nonmetals and 3 of metals
metals: lusterous, malleable, ductile, conductors, high density
What is the formula for Carbonic Acid
H2CO3
Which is type I, type II, and type III: Fe2O3, sodium chloride, CO2
Type 1: sodium chloride
Type 2: Fe2O3
Type 3: CO2
Why do we run repeated trials on an experiment?
They reduce the possibility of chance errors affecting the results
What is the difference between extrapolating and interpolating data?
Extrapolate: extending the graph, along the same slope, above measured data
Interpolate: predicting data between two measured points on the graph