January 2023
what is the anion name of (I-1)
iodine ion
what units are used to measure atomic radius?
picometers
what type of reaction is the burning of wood?
combustion reaction
When using the Stoichiometry Roadmap, you can only drive in the direction the arrows on the street point.
true
what happens if an equilibrium is disturbed by stress?
It will shift to restore equilibrium
how many VE in a triple covalent bond?
6 VE
what is ionization energy.
The amount of energy required to remove an electron from an isolated atom or molecule.
what prefixes represent 2,4 and 7 atoms?
di , tetra and hepta
whats the Arrhenius concept?
the earliest idea about acids + bases
what is the difference between exothermic and endothermic reaction?
Endothermic: system absorbs heat from the surroundings
exothermic: system released heat into the surroundings
what elemental family are cations typically found in?
metal
how do you calculate molar mass?
you multiply # of atoms by Average atomic mass.
name 3 of the 5 chemical reaction types.
synthesis, decomposition, single replacement, double replacement, and combustion
from the stoichiometry conservation rode map what road connects mass field and mole town
molar mass dr
when one side of an equilibrium is colorless what side does it favor?
Reactants
ionic bonds occur between what two elemental groups?
1 metal and 1 non-metal
calculate the molar mass for Zn2HPO4
MM (Zn2HPO4) = 226.74g/mol
What's the product? Cl2 + KI =
I2 + 2KCl
Sulfur Dioxide (SO2) reacts with Oxygen gas (O2)to form Sulfur Trioxide(SO3).
How many moles of Oxygen gas will react completely with 4.6 moles of Sulfur Dioxide?
2.3 mol O2
If a yellow solution is actively changing into the orange solution is it at equilibrium?
No, an active color change would indicate actively changing concentration ratio.
what is the chemical equation for the ionic bonding reaction between Mg and N.
3Mg+2 + 2N-3 -> Mg3N2
calculate the molar mass for Au2(C8H4O4)3
MM Au2(C8H4O4)3 = 886.3g/mol
in a decomposition reaction what two parts does BaCO3 split into.
BaCO3 -> BaO + CO2
in CaCO3 + HCl -> CaCl2 + H2O + CO2 , how many liters of carbon dioxide gas, measured at STP, can be obtained from 45.0g of calcium carbonate?
10.1L
what is LeChatlier's Principle?
A change in one of the variables that describes a system at equilibrium produces a shift in the position of the equilibrium that counteracts the effect of this change