Redox equations Study guides, Class notes & Summaries
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HESI A2 CHEMISTRY-CHRISJAY FILES (1) (1)
- Exam (elaborations) • 54 pages • 2023
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HESI A2 ENTRANCEEXAM 
FOR 
CHAMBERLAINCOLLGE 
OF NURSING 
2023 QUESTIONS WITH 
ANSWERS 
CHEMISTRY 
HESI A2 CHEMISTRY V1/V2 FILE 
1. If a Hydrogen isin a compound, what would its oxidation number be? 
+1 
2. What isthe oxidation number of any simple ion? 
+1 or -1 depending on the charge of the ion 
3. How many kilograms are in a pound? 
0. kg 
4. What is the temperature for freezing point of water in Celsius? 
0 degrees Celsius (32°F for Fahrenheit) 
5. What is the conversion of Celsius to Fah...
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Chemistry 115 Final Exam Questions with Verified Solutions
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Chemistry 115 Final Exam Questions with Verified Solutions Any ionic compound containing group IA or NH4+ cations are.... Always Soluble 
Ionic compounds containing NO3-, NO2-, ClO3-, ClO4-, C2H3O2-, & HCO3- anions are Always Soluble 
Ionic compounds containing Cl-, Br-, & I- anions are soluble EXCEPT when combined with... Ag, Hg, and Pb cations 
Ionic compound containing SO4^2- are soluble EXCEPT when combined with... Ag, Hg, Pb, Ca, Sr, Ba 
Ionic compounds containing So3^2-, S^2-, CO3^2-, PO4^...
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OCR AS LEVEL CHEMISTRY A H032/02 DEPTH IN CHEMISTRY ACTUAL 2024 EXAM V1 ACCURATE QUESTIONS AND ANSWERS 100% COMPLETE CHECK THE LAST PAGE FOR ANSWERS
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OCR AS LEVEL CHEMISTRY A H032/02 DEPTH IN CHEMISTRY 
ACTUAL 2024 EXAM V1 
ACCURATE QUESTIONS AND ANSWERS 100% COMPLETE 
CHECK THE LAST PAGE FOR ANSWERS 
1	This question is about nickel and its compounds. 
(a)	Nickel reacts with dilute hydrochloric acid in a redox reaction. Ni(s) + 2HCl (aq)	NiCl 2(aq) + H2(g) 
Explain, in terms of the number of electrons transferred, whether nickel is oxidised or reduced. 
 
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OCR GCE AS Level Chemistry A H032/01: Breadth in chemistry Mark Scheme for June 2022
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OCR GCE AS Level Chemistry A H032/01: Breadth in chemistry Mark Scheme for June 2022. (Electrostatic) attraction between 
oppositely charged OR + and – ions 
1 AO1.1 
×1 
Attraction is essential 
IGNORE references to metal and non-metal 
Mark SchemeJune 2022 
20 
(ii) 
Mg2+ shown alternately in FOUR circles 
S 
2– shown alternately in FOUR circles 
2 AO1.2 
×2 
ALLOW labels if seen outside circles provided it 
clear which circle the label applies to 
ALLOW 1 mark for Mg AND S s...
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HESI A2 Chemistry Possible Questions & Answers: Latest Updated
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What are all metric measurements composed of? 
(Ans- metric prefix and a basic unit of measurement 
 
What is the most commonly used temperature in scientific community? (Ans- Celsius 
 
Nucleus of an atom contains... 
(Ans- protons and neutrons 
 
an atom with a positive charge 
 (Ans- cation 
 
what are the rows called in the periodic table 
 (Ans- periods 
 
atomic number 
 (Ans- number of protons 
 
atomic mass 
 (Ans- mass of elements isotopes 
 
how are chemical equations written? 
 (Ans...
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CHEM 103 General Chemistry I with Lab 4 Credits
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CHEM 103 General Chemistry I with Lab 4 Credits 
Prerequisites: High school chemistry (recommended, but not required) 
Instructor: Kenneth Hartman, PhD 
Facilitator: Rodney Austin, PhD 
Heather Dorman, PhD 
H Elaine Frey, MHA 
Kathy Austin, MEd 
Contact Information: Faculty may be contacted through the Portage messaging system 
Additional Information: * 
Course meeting times: CHEM 103 is offered continuously 
Course Description: A systematic investigation of the fundamental principles of chemist...
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Chemistry Final Exam (Answered)
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Chemistry Final Exam (Answered) 
 
Oxidation Rules 
Rule 1: The oxidation number of an element in its free state = 0 (Also true for diatomic elements) 
-Mg=0,H2=0, C=0 
 
Rule 2: The oxidation number of a monatomic (one-atom) ion is the same as the charge on the ion 
-Mg^2+=+2, Na^+=+1, O^2-=-2 
 
Rule 3: The sum of all oxidation numbers in a neutral compound is zero. The sum of all oxidation numbers in a polyatomic (many-atom) ion is equal to the charge on the ion. 
 
Rule 4: The oxidation numb...
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CSM CHEM 210 Final Questions & Answers Already Graded A+
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If the fuel efficiency of an automobile is 22 miles per gallon, what is its fuel efficiency in Kilometers per 
liter? ( 1Km= 0.621 mile, 1.00 L=1.057 quarts and 4 quarts = 1 gallon) - Answer-9.4 Km/L 
*What is the correct answer to the following expression: 
(49.1 - 42.61 ) x 13.1? - Answer-85 
An intensive property of a substance is independent of amount. - Answer-True 
Lithium has two stable isotopes with masses of 6.01512 amu and 7.01600 amu. The average atomic 
mass of Li is 6.941 amu. What ...
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CHEM 103 Exam 1 to 6 Questions With Correct Answers Latest Update 2024 (Portage Learning)
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Show the calculation of the molecular weight for the following 
compounds, reporting your answer to 2 places after the decimal. 
1. Al2(CO3)3 
2. C8H6NO4Cl 
1. 2Al + 3C + 9O = 233.99 
2. 8C + 6H + N + 4O + Cl = 215.59 
Question 2 
Click this link to access the Periodic Table. This may be helpful throughout 
the exam. 
Show the calculation of the number of moles in the given amount of the 
following substances. Report your answerto 3 significant figures. 
1. 13.0 grams of (NH4)2CO3 
2. 16.0 grams...
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CHM 1020 Exam 1 Latest 2023 Rated A+
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CHM 1020 Exam 1 Latest 2023 Rated A+ 
matter any solid, liquid, gas, or plasma that occupies a space and has mass 
homogeneous mixture mixture that is uniform throughout (solution) 
heterogeneous mixture mixture that is not uniform throughout 
atoms smallest unit of an element 
element many atoms of the same type; most basic building blocks 
compounds different elements bonded together (pure substance) 
chemical symbols one or two letter abbreviation for elements (atomic symbols) 
group vertical...
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