CHEM 120 (chem120)

Week 1 Assignment - worth 20 ponts

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3 pages

Written in 2024/2025

mayaholland

If an atom loses electrons in a redox reaction, we say this atom was: a.) oxidized b.) reduced c.) none of the above d.) an oxidizing agent In the reaction CrO + H₂ → H₂O + Cr, the element being reduced is: a.) all elements are oxidized b.) H c.) Cr d.) O d.) Fe³⁺ What is the oxidizing agent in the reaction Fe³⁺ + V → Fe + V³⁺ a.) V³⁺ b.) Fe c.) V d.) Fe³⁺

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4 pages

Written in 2023/2024

Grade A+

NURSCLARE

CHEM120 Week 8: Exam 3 (Units 5, 6, and 7) – With 100% Correct Answers- Download To Score An A+ 1. Question: (TCO 7) (a, 5 pts) Given that the molar mass of H3PO4 is 97.994 grams, determine t he number of grams of H3PO4 needed to prepare 0.25L of a 0.2M H3PO4 solution. Show your work. (b, 5 pts) What volume, in Liters, of a 0.2 M H3PO4 solution can be prepared by diluting 50 mL of a 5M H3PO4 solution? Show your work. (Pts. : 10) A. Molarity = moles of solute/liters of solution moles of solute ...

3.0

(2)

4 pages

Written in 2023/2024

Grade A+

DocEdyth

CHEM120 Week 8 Assignment: Group Project Presentation – Vitamins & Minerlas How vitamins and minerals/trace elements affect health/human body SELINA GALLARDO CHEMISTRY 120 PROFESSOR FIRT H What are vitamins and minerals? ► Vitamins are living (organic) substances which are created from plants or animals. Now, minerals are lifeless (inorganic) elements that occur from the soil along with water furthermore are absorbed from plants or consumed by creatures. ► Efficacy is the ability of a supp...

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14 pages

Written in 2023/2024

DocEdyth

● Stoichiometry is the use of quantitative relationships between substances that are involved in chemical reactions which determine the amounts of the reactants or the products (Bauer, Birk, & Mar ks, 2019). Stoichiometry - the process of determining the amounts of substances in a chemical reaction (Bauer, Birk, & Marks, 2019). ● It is used to relate the reactants and products by using calculations and balanced equations (Bauer, Birk, & Marks, 2019). ● By knowing the amount of a reactant o...

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20 pages

Written in 2023/2024

DocEdyth

CHEM 120 Week 7 Discussion: Flow of Genetic Information - Protein Initial Post Instructions In the news, we often hear examples of how DNA or the transfer of genetic information impacted someone's l ife. Examples range from DNA fingerprinting to genetically engineered organisms to an individual with a genetic disease. In each of these scenarios, the structure of nucleic acids and the flow of genetic information through mRNA to protein are involved. Using an example from the news or a scholarly ...

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2 pages

Written in 2023/2024

DocEdyth

CHEM 120 Week 8 Final Exam - Question Only – Download For Revision Page 1 1. Question: (TCO 8) 35.0 mL of 0.25 M NaOH is neutralized by 23.6 mL of an HCl solution. The molarity of the HCl solution is (show your work): 2. Question: (TCO 1) How many mL are in 3.5 pints? Show your work. 3. Question: (TCO 3) What is the name of the following compound: Zn3P2? 4. Question: (TCO 3) What is the name of the following compound: AgNO3? 5. Question: (TCO 6) Calculate the pressure, in atmospheres, of 2.78 ...

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6 pages

Written in 2023/2024

Grade A+

DocEdyth

CHEM120 Week 7 Concepts: Biochemistry – Download For Revision And Improve Your Grades LIPIDS In this concept, we will discuss one class of biological polymers called lipids or fats. You might be f amiliar with this class of biopolymers, which are found in butters and oils. We will discuss saturated and unsaturated fats, and what those terms mean for the molecule's structure as well as its properties at room temperature. 1. Which of the following is a source of lipids? • Sugar, fruits, and b...

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35 pages

Written in 2023/2024

DocEdyth

CHEM 120 Week 8 Final Exam Review! RATED A+

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5 pages

Written in 2022/2023

Grade A+

AcademicAssignments

1. Question: (TCO 7) (a, 5 pts) Given that the molar mass of H3PO4 is 97.994 grams, determine the number of grams of H3PO4 needed to prepare 0.25L of a 0.2M H3PO4 solution. Show your work. (b, 5 pts) What volume, in Liters, of a 0.2 M H3PO4 solution can be prepared by diluting 50 mL of a 5M H3PO4 solution? Show your work. (Pts. : 10) 2. Question: (TCO 7) (a, 5 pts) What is the mass/volume percent of a solution prepared by dissolving 43 g of NaOH in enough water to make a final volume of 120 ...

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4 pages

Written in 2022/2023

Grade A+

AcademicAssignments

Chamberlain University CHEM 120 Final Exam Questions and Answers Updated Version Guaranteed A+

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6 pages

Written in 2023/2024

Grade A+

Tutordiligent

CHEM 120 Midterm Study Guide

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5 pages

Written in 2022/2023

olivercartergrades

Chem 120 Exams: Quizzes, Study Guide, Final Exam,Assignment(Collection) | 100% Guaranteed Pass.

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14 items

greatsolutions

CHEM120: Week 1 Lab Name: Michelle Ramsaroop You are giving your child a medicine that has a dosage of 2 tsp a dose. The instructions indicate that you are to give the child 3 doses day. How many days will a 100 ml bottle of medication last? Show all work below (1 point) 1tsp = 4.92892 2tsp = 9.85782 3 doses - 9.85782 X 3= 29.57346 100/ 29.58 = 3.347 100ml will last = 3.35 days 1. A chemical process dissolves 500 milligrams of iron oxide every 20 mins. How long would it take this reactio...

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2 pages

Written in 2022/2023

Grade A+

greatsolutions

dentify an atom that has 4 protons and 6 neutron. What is the number of electrons in that atom? Calculate mass number. Beryllium (Be) Has 4 electrons Mass number = 4+6 = 10 If the number of neutrons are 6, then the mass number will be sum of neutrons and protons 6+4 = 10 Pick any nonmetric to metric equality and convert it. For example, 8.9 lb = _______________ g To find out how many grams in "x" pounds (lb), multiply the number of pounds by 453.59237. 1 lb (pounds) equals 453.592 g...

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5 pages

Written in 2022/2023

greatsolutions

CHEM 120 Final Exam

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19 pages

Written in 2022/2023

Grade A+

linkys412

Exam 2 Total Points: 60 PART 1: Multiple Choice questions: Q 1-24. (2 point each) 1. Chemical reactions (equations) show the following a. Reactants b. Products c. Physical state of each (gas or liquid or solid) d. All of the above 2. The following is true for a mole a. It is also known as Avagadro’s number b. It contains 6.022 * 1023 molecules c. It contains mass equivalent to molecular weight d. All of the above are true 3. In balancing chemical equations, the coefficients are us...

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6 pages

Written in 2022/2023

greatsolutions

CHEM120 Discussions, Study Guides, Exam Review, & Exams for Chamberlain College of Nursing |100% CORRECT

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10 items

LeoAcademics

CHEM 120 Week 1 Discussion Question 1: Scientific Method and Calculations

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3 pages

Written in 2022/2023

Grade A

LeoAcademics

CHEM 120 Unit 3 Discussion 2: Molarity and Solution Calculations

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5 pages

Written in 2022/2023

Grade A

LeoAcademics