Ionic & Covalent Compounds
Stoichiometry
Chemical Reactions
Acids and Bases
Periodic Table
100
calcium fluoride
What is CaF2 ?
100
Molar mass of K3Fe(CN)6
What is 329.27 g/mol K3Fe(CN)6 ?
100
The chemical components that identify a certain reaction scheme as a combustion reaction. *hint: specify distinct reactant(s) AND product(s)
What are: reactants - hydrocarbons & oxygen. products - carbon dioxide & water.
100
Complete the following sentence: The stronger the acid, the _______ its conjugate base.
What is weaker?
100
This element(s) is classified purely as a nonmetal.
What is either: C, N, O, P, S, or Se? (note: although F, Cl, Br, etc. have nonmetal properties, they are technically Halogens)
200
N2O4
What is dinitrogen tetroxide ?
200
The mass of 4.28x10^(22) molecules of water.
What is 1.28 grams?
200
Many salts dissociate into ____ in aqueous solution.
What are ions?
200
Complete the following sentence: The higher the concentration of protons [H+] in solution, the _____ the pH pf the solution.
What is lower?
200
How many protons, neutrons, and electrons does elemental carbon have?
What is 6 protons, 8 neutrons, and 6 electrons?
300
CuCl
What is copper(I) chloride ?
300
Complete the reaction: HNO3 + _____ ---> H20 + KNO3
What is KOH?
300
Classify the following type of reaction: A ---> B + C
What is a decomposition reaction?
300
The conjugate base of HCOOH
What is HCOO- ?
300
These seven (7) elements are actually naturally-occurring diatomic elements.
What are hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine?
400
H2SO4
What is hydrosulfuric acid ?
400
Balance the following equation: _PCl5 + _H20 ---> _H3PO4 + _HCl
What is _1_PCl5 + _4_H20 ---> _1_H3PO4 + _5_HCl
400
Complete the following reaction and identify the missing physical states of matter. NaOH (aq) + HCl (aq) ---> ___ (_) + ___ (_)
What is ---> H20 (l) + NaCl (aq)
400
The pOH of a [2.0]M HCl solution.
What is pOH = 13.7?
400
An atom of a given element with a varying number of neutrons.
What is an isotope?
500
ammonium dichromate
What is (NH4)2Cr2O7 ?
500
5_O2 + 4_NH3 ---> 4_NO + 6_H20 Oxygen reacts with 33.1 grams of NH3. Only 30.2 grams of water vapor were formed. How much NH3 actually reacted with oxygen?
What is 19.0 grams HN3 ?
500
Complete AND balance the following reaction and identify the missing physical states of matter. Ca(OH)2 (aq) + FeCl3 (aq) ---> ___(_) + ___(_)
What is ---> 2_Fe(OH)3 (s) + 3_CaCl2 (aq)
500
The amount of grams of KOH necessary to prepare 800mL of a solution with a pH = 11.56
What is 0.16 grams KOH?
500
Arrange the following elements in order of INCREASING ELECTRONEGATIVITY: Fe, Sn, O, Rb, F, Al
What is Rb
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