John dalton Study guides, Class notes & Summaries

MULTIPLE CHOICE 1. The term “atom” was first used by the ___________. a. Ethiopians b. British c. Greeks d. Romans ANS: C The term “atom” was first used by the Greeks DIF: Moderate REF: p. 27 OBJ: Relate the history of the term “atom.” 2. The first person to describe an element as being composed of identical atoms was __________. a. J. J. Thomson b. John Dalton c. Dmitri Mendeleev d. Niels Bohr ANS: B The first person to describe an ele...

Atomic Theory Correct Answer-an explanation of the structure of matter in terms of different combinations of very small particles (atoms). is a theory of the nature of matter, which states that matter is composed of discrete units called atoms, as opposed to the obsolete notion that matter could be divided into any arbitrarily small quantity. Evidence of Atomic Theory Correct Answer-John Dalton proposed that each chemical element is composed of atoms of a single, unique type, and though they ...

Who is considered to be the "father of medicine"? correct answer: Hippocrates In 1662, a chemist published a book that described the relationship between gas, volume, and pressure. What was the chemist's name? correct answer: Robert Boyle Who discovered oxygen in 1774 and described it as "dephlogisticated air"? correct answer: Joseph Priestley Who is credited with first describing the law of partial pressures for a gas mixture? correct answer: John Dalton Who was the first s...

AQA AS Physical Chemistry 2024 Exam Questions And Answers Who described atoms as solid spheres that make up different elements and when? - ANSWER- John Dalton in the 19th century Who suggested that atoms of a particular element had the same mass and atoms of different elements had different masses and when? - ANSWER- John Dalton in 1803 Who discovered the electron and when? - ANSWER- JJ Thomson, 1897 discovered electrons proving atoms weren't indivisible or solid. New model named pl...

AQA AS Physical Chemistry 2024 exam questions with 100% correct answers Who described atoms as solid spheres that make up different elements and when? - ANSWERS John Dalton in the 19th century Who suggested that atoms of a particular element had the same mass and atoms of different elements had different masses and when? - ANSWERS John Dalton in 1803 Who discovered the electron and when? - ANSWERS JJ Thomson, 1897 discovered electrons proving atoms weren't indivisible or solid. New m...

Chapter 01 - History of Respiratory Care Kacmarek et al.: Egan’s Fundamentals of Respiratory Care, 12th Edition MULTIPLE CHOICE Which of the following is an expected role of a respiratory therapist? Promoting lung health and wellness Providing patient education Assessing the patient’s cardiopulmonary health status Selling oxygen (O2) therapy devices to patients 1 only 1 and 4 only 1, 2, and 3 only d. 1, 2, 3, and 4 ANS: C Respiratory care includes the assessment, treatment, mana...

Test Bank for Egan’s Fundamentals of Respiratory Care 12th Edition Kacmarek/ Chapter 01 - History of Respiratory Care Kacmarek et al.: Egan’s Fundamentals of Respiratory Care, MULTIPLE CHOICE 1. Which of the following is an expected role of a respiratory therapist? 1. Promoting lung health and wellness 2. Providing patient education 3. Assessing the patient’s cardiopulmonary health status 4. Selling oxygen (O a. 1 only b. 1 and 4 only c. 1...

Chemistry 101 Midterm Ivy Tech (1-4) Exam With Correct Answers Which of the following would be considered a theory? a. glass is fragile b. hot air rises c. gasoline has a very strong odor. d. helium balloons float because helium is less dense than air. e. none of the above Correct Answer: D Which statement accurately describes the purpose of experiments? a. experiments are designed to produce the results predicted by a theory. b. experiments can be replaced by a simple, logical reas...

Historical Development Answer 1803- John Dalton Considered the father of the modern theory of atoms and molecules 1895- Wilhelm Roentgen Discovered x-ray 1896- Henri Becquerel Discovered naturally occurring radioactive substances 1898- Marie Curie Discovered two new elements in the uranium ore 1958- Hal Anger Introduced Gamma camera 1960- David Edwards and Roy Kuhl Single photon emission computed tomography (SPECT) camera 1980s SPECT imaging became standard practice ...

Chapter 01: History of Respiratory Care Kacmarek: Egan’s Fundamentals of Respiratory Care, 12th Edition MULTIPLE CHOICE Which of the following is an expected role of a respiratory therapist? Promoting lung health and wellness Providing patient education Assessing the patient’s cardiopulmonary health status Selling oxygen (O2) therapy devices to patients 1 and 3 only 2 and 4 only 1, 2, and 3 only 2, 3, and 4 only ANS: C Respiratory care includes the assessment, treatment, managem...