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Wavelength of light emitted depends directly on: Select one: a. The quantity of energy absorbed by an electron. b. The specific element the electron belongs to. c. The quantity of energy released by an electron. d. All of the above What is the total number of electrons that can occupy the third principle energy level? Select one: a. 8 b. 2 c. 10 d. 18 The electron configuration 1s 2s 2p 3s 3p 4s 3d 4p represents which element? Select one: a. Germanium b. Arsenic c. Silicon d. P...

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CHEM 101L • CHEM 101L
CHEM 101L lab exams 1-8 Straighterline FALL 2023 • By Oldspice

CHEM 101L Lab 4: Molar Mass FALL 2023 (Straighterline)

Avogadro’s number: Select one: a. Equals 6.02 × 10 molecules/mole. b. Is used to determine the number of atoms or molecules in a substance. c. Equals the number of atoms in 12 gram of C. d. All of the above. Calculate the molecular mass of calcium chloride (CaCl ). Select one: a. 35.45 g/mol b. 110.98 g/mol c. 40.08 g/mol d. 75.53 g/mol True or false: Avogadro’s number is named after the nineteenth century Italian scientist Amedeo Avogadro Select one: a. True b. False

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CHEM 101L • CHEM 101L
CHEM 101L lab exams 1-8 Straighterline FALL 2023 • By Oldspice

CHEM 101L Lab 3: Data Analysis and Graphing FALL 2023 (Straighterline)

A physical property that depends on only the type of material and not on how much of that material that you have is known as Select one: a. Inheritable property b. Intensive property c. Extensive property d. Exhausted property True or false: If you are changing a larger unit into a smaller unit, like cm into mm, the decimal is moved to the right because you are multiplying by a power of ten Select one: a. True b. False The metric system is based upon Select one: a. Multiples of 1 ...

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CHEM 101L • CHEM 101L
CHEM 101L lab exams 1-8 Straighterline FALL 2023 • By Oldspice

CHEM101L Lab Exam 1 Introduction and Laboratory Safety FALL 2023 Straighterline

In the case of an acid spill, what should you do first? Select one: a. use a rag to soak up the acid b. pour vinegar on the acid c. dilute the acid with water before soaking it up d. pour baking soda on the acid The following is part of the lab safety rules: It's not necessary wash hands before entering the lab. Select one: True False All of the following safety tips are true EXCEPT Select one: a. All chemical in the laboratory should be considered hazardous b. Always put lids bac...

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CHEM 101L • CHEM 101L
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BIO 105 Graded exam 1 Topic 3: Cardiovascular System: Blood Vessels and Circulation FALL 2023

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Red blood cells will develop from_________. Select one: a. proerythroblasts Correct b. lymphoblasts c. myeloblasts d. megakaryoblasts e. monoblasts The correct answer is: proerythroblasts An increased amount of heparin in the blood might Select one: a. slow down the clotting process. b. stop the clotting process. Incorrect c. speed up the clotting process. d. enhance the clotting process. e. have no effect on the clotting process. The correct answer is: slow down the clotting proc...

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BIO 105 • BIO 105

BIO 105 Midterm Exam Straighterline FALL 2023

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Hemoglobin Select one: a. transports O in the blood. b. is only used once then decomposed. c. is normally found in both the plasma and erythrocytes. d. gives white blood cells their color. e. catalyzes the reaction that forms carbonic acid. Which of the following phrases is least likely to be used in describing erythrocytes? Select one: a. Nucleus is centrally located b. Biconcave cells c. Cytoplasm contains hemoglobin d. Main role is transporting blood gases e. Cells can change sha...

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BIO 105 • BIO 105

BIO 101 Sophia Biology Milestone 1 Saylor academy

What molecules in the cell membrane help move molecules from a low to a high concentration gradient? Endocytosis Vesicles Transport proteins Diffusion pumps CONCEPT Facilitated Diffusion 2 Which of the following statements is true? Diffusion involves the breaking down of dead organelles. Diffusion involves the movement of molecules in the cytoplasm.

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BIO 101 • BIO 101

BIO 101 Sophia Biology Milestone 3 Saylor academy

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Parkinson’s disease is caused by __________. an injury in the peripheral nervous system the breakdown of neurons, affecting neurotransmitter production a viral infection that affects various parts of the brain an injury to the spinal cord CONCEPT Nervous System Health and Disorders 2 This ear disorder, which produces inflammation in the inner ear, is commonly referred to as an ear infection. Otis media

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BIO 101 • BIO 101

BIO 101 Sophia Biology Milestone 2 Saylor academy

Which of the following activities uses white skeletal muscles? Snapping your fingers Swimming Walking Running a marathon CONCEPT Types of Skeletal Muscle and Muscle Contraction Overview 2 Which information about muscle cramps is true? They are caused by a deficiency of calcium in the body. They are voluntary contractions of muscles that release immediately.

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BIO 101 • BIO 101

BIO 101 Sophia Biology Milestone 4 Saylor academy

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Which of the following is an autoimmune disorder? Lupus Allergies AIDS Anaphylactic shock CONCEPT Immune System Disorders and HIV/AIDS 2 What is "tidal volume?" The amount of water the lungs can hold without failing The minimum amount of oxygen that has to be present in the air 7/30/2020 Sophia :: Welcome The amount of air in each breath The amount of water the human body can hold CONCEPT Respiration and the Respiratory Cycle 3 Which of these may cause cancer? Expression of ...

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