Exam (elaborations)
Hesi A2 Chemistry exam V1 & V2 latest 2023
- Course
- Institution
Hesi A2 Chemistry exam V1 & V2 latest 2023 Hesi A2 Chemistry exam V1 & V2 latest 2023 Hesi A2 Chemistry exam V1 & V2 latest 2023
[Show more]
Content preview
Hesi A2 Chemistry exam V1& V2 latest 2023
HESI CHEMISTRY V1/V2 (140 QUESTIONS AND ANSWERS) 1.If Hydrogen is in a compound, what would its oxidation
number be? +1 2.What is the oxidation number of any simple ion? The same as 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? 5F=9C+160 (remember 5F because you have 5 fingers on
a hand & 9C because cats have 9 lives) 6.What is the oxidation number of an element atom? 0 7.What is the freezing point of sea water in Fahrenheit? Below 0C (pick and answer choice around -2C, actual
temp depends on how much salt is in the water) 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 H2SO4? 6 (each H is +1, each O is -2. All charges have to add to 0. 2+S-8=0, so S=6) 13.How many neutrons does carbon 14 have? 8 ( mass# - atomics # = neutrons) 14 - 6 = 8 14.How many protons does Potassium have? 19 (same as the atomic number) 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
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 NurseMeg. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73314 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now