Exam (elaborations)
ALL HESI A2 CHEMESTY EXAMS | REAL EXAMS |GUARANTEED PASS |COMPLETE|APPROVED EXAMS 100%
- Course
- Institution
ALL HESI A2 CHEMESTY EXAMS 2023- 2024 | REAL EXAMS |GUARANTEED PASS |COMPLETE|APPROVED EXAMS 100%
[Show more]
Seller
Follow
NURSMERIT
Reviews received
Content preview
TEST BANKREAL EXAMS
ALL HESI A2 CHEMESTY EXAMS 2023-
2024 | REAL EXAMS |GUARANTEED
PASS |COMPLETE|APPROVED EXAMS
100%
Table of Contents
HESI A2 CHEMISTRY Questions with answers version 1 ...................................................................................1
HESI A2 Chemistry questions with answers version 2.......................................................................................10
HESI A2 Chemistry Questions with Answers version3 ......................................................................................19
HESI A2 Chemistry note cards for HESI entrance exam ...................................................................................33
HESI A2 CHEMISTRY Questions and answers version 4 .................................................................................39
HESI A2 CHEMISTRY Questions with answers version 1
1. If a Hydrogen is in a compound, what would its oxidation number be?
+1
2. What is the oxidation number of any simple ion?
+1 or -1 depending on the charge of the ion
3. How many kilograms are in a pound?
0.453592 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 Fahrenheit?
0°C = 32°F
6. What is the oxidation number of an element atom?
0
7. What is the freezing point of sea water in Fahrenheit?
0°F
8. How many amino acids are in a dipeptide?
2
9. If Oxygen is in a compound, what would its oxidation number be?
-2
10. Which of the following pH values would lemon juice likely have?
2 because the lower the pH value, the more acidic
11. What is a pentose?
A 5 carbon sugar (Pent = 5) (ose = sugar)
12. What is the oxidation state of the Sulfur atom in Sulfuric Acid H SO ?
2 4
6
13. How many neutrons does carbon 14 have?
8 ( mass# - atomics # = neutrons) 14 - 6 = 8
14. How many protons does Potassium have?
19
15. How many amino acids are essential for human life?
20 amino acids
16. Normal body temperature in °C?
37°C
17. Normal body temperature in °F?
98.6°F
18. Boiling point of water in °C?
100°C
19. Boiling point of water in °F?
212°F
20. 0°K is equal to °C? -273°C
21. The term Amphoteric means?
A substance that can act as both a base & acid
22. What is Kelvin based around?
, Absolute zero
23. A compound that is a Hydrogen or proton donor, corrosive to metals, causes blue litmus
paper to become red and becomes less acidic when mixed with a base is?
Acid
24. Mixture of 2 or more metals are?
Alloys
25. Acids:
pH less than 7.0
sour/tart
Formulas begin with H (Hydrogen)
Proton Donor
26. 3 types of radiation in nuclear chemistry?
Alpha, Beta & Gamma
27. Alpha radiation:
* Emission of Helium (He) ions in the nuclei
* Contains 2 protons & 2 neutrons.
* +2 Charge
* Largest radiation particle.
* Can be stopped by piece of paper
00. Type of Alloy in which another metal is dissolved in Mercury (Hg)?
Amalgam
28. Proteins are made up of?
Amino Acids
29. Glycogen is what kind of starch?
Animal Starch
30. When a electron gains one or more electrons?
Anions
31. Basic building block of a molecule?
Atom (NOT CELL!!)
32. Atomic mass?
Average mass of a elements isotope
33. Atomic #:
# of protons in nucleus of an atom
34. Base?
A Hydrogen or proton ACCEPTOR & has hydroxide group in the makeup of the
molecule
, Produce -OH
Bitter, slippery, conduct electricity, formulas contain -OH
pH value greater than 7.0
Proton acceptor
35. Key note:
Acids are Proton donors as Bases are proton acceptors
36. Beta radiation:
Decomposition product of a proton or neutron
High speed/energy Electrons
EITHER - charged electrons or + charged positrons
Can be stopped by aluminum foil
37. What is Biochemistry?
Study of substances & processes occurring in living things
38. Fahrenheit is based off of?
Body temperature
39. How does ↑ Surface area speed up chemical reactions?
By ↑ areas of contact where chemical reactions can occur
40. How do catalyst accelerate a chemical reaction?
By reducing the amount of energy needed for a reaction to occur
41. What does COOH symbolize?
A Carboxyl group
42. Which of the following is not a solution type?
Catalyst
43. Define Catalyst.
Substance that speeds up a chemical reaction.
44. What is an atom called when it LOSES 1 or more electrons?
Cations
45. What is chemical bonding?
The joining of atoms to form new substances. 2 types: ionic & covalent bonding
46. What is a Ionic bond?
Electrical attraction between 2 oppositely charged atoms groups of atoms called
ions
(between metals & nonmetals)
47. Ionic bonding?
Chemical bond that’s formed when an atom transfers a electron to another atom.
(steals)
48. Single Covalent bond?
Chemical bond that shares 1 electron pair
Formed by non-metals
49. What are chemical reactions?
Making & breaking of chemical bonds, leading to changes in composition of matter
50. Double Covalent bond?
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller NURSMERIT. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53340 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now