Periodic Trends
As you move left to right across a period, what happens to the electronegativity?
It increases
What bond type involves the sharing of electrons?
A covalent bond
What is the first step you need to do for a stoichiometry problem?
Make sure the equation is balanced
What number do you have to add when the temperature is in Celsius?
273
This reaction type combineds two or more reactants into a single product
Synthesis
Vertical columns on the periodic table are called?
Groups/families
What bond forms between a metal and a nonmetal?
An ionic bond
N_2 + 3H_2 -> 2NH_3
How many moles of NH_3 are produced from 6 moles of H_2?
4 moles of NH_3
What law states that at constant pressure, volume is directly proportional to temperature?
Charles's Law
What is the general form for a synthesis reaction
A + B -> AB
What trend increases as you move down a group?
The atomic radius
Atoms bond because they want to reach what number of valence electrons?
Eight
What is Avogadro's number?
6.022 x 10^23
What is the value of the Ideal Gas Constant (R)
0.0821
In what reaction does a single compound break down into two or more simpler substances
Decomposition
What energy is required to remove an electron?
Ionization energy
In an ionic bond, the metal atom usually becomes this type of positively charged ion
A cation
2Mg+O_2 -> 2MgO
How many grams of MgO are produced from 48 grams of Magnesium?
80 grams of MgO
What must you convert Celsius to solve gas laws equations?
Kelvin
In what reaction do two elements swap places between two different compounds
Double Replacement
When inner electrons block the pull of the nucleus on outer electrons, keeping the ionization energy lower in atoms
The Shielding Effect
What type of covalent bond occurs when electrons are shared unequally?
A polar bond
2Na + 2H_2O -> 2NaOH + H_2
How many grams of H_2 are produced if 46 grams of Sodium Na reacts completely with water?
2 grams of H_2
P1V1/T1 = P2V2/T2
What Law does this equation represent?
Combined Gas Law
Zn + 2HCl -> ZnCl_2 + H_2
What reaction type is this?
Single Replacement