Who is john dalton - Study guides, Class notes & Summaries

Who is the father of medicine? - Hippocrates Who is credited with the discovery of oxygen? - Joseph Priestley Who created the germ theory? - Louis Pasteur Who described the law of partial pressures in a gas mixture? - John Dalton Who described the relationship between gas pressure and temperatures? - Joseph Louis Gay-Lussac Who described the relationship between gas volume and temperatures? - Jacques Charles What did William Roentgen discover? - X-Rays What does Karl von Linde contribut...

LRA 211 Radio Physics Final Exam With 100% Correct Answers 2024

CHEM 131 Introduction to Chemistry with Lab Test Complete Guide 2023/2024 Rated A+. Who discovered the atomic theory? A.Antoine Lavoisier B.John Dalton C.John Dalton and Antoine Lavoisier D.Albert Einstein E.none of the above Answer Key: B Feedback: Good! It was Dalton. Question 2 of 12 4.0/ 4.0 Points Who discovered the law of conservation of mass? A.Albert Einstein B.John Dalton and Antoine Lavoisier C.Antoine Lavoisier D.John Dalton E.none of the above Answer Key: C Feedback: ...

GCSE EDEXCEL TRIPLE SCIENCE CHEMISTRY PAPER 2 2024/2025 QUESTION PAPER ALREADY PASSED What does 'aq' mean? - answer Aqueous - it is dissolved in water Water - formula - answer H20 Ammonia - formula - answer NH3 Carbon Dioxide - formula - answer CO2 Hydrogen - formula - answer H2 Chlorine - formula - answer Cl2 Oxygen - formula - answer O2 Ammonium (ion) - formula - answer NH4 (+) Hydroxide (ion) - formula - answer OH (-) Nitrate (ion) - formula - answer NO3 (-) Carbonate (ion) -...

Chemistry 1 Honors Final Exam Review 2024 with Correct Answers a broad generalization that explains a body of facts or phenomena - Answer- theory a testable statement - Answer- hypothesis a measure of the quantity of matter - Answer- mass a measure of the gravitational pull on matter - Answer- weight the closeness of measurements to the correct or accepted value of the quantity measured - Answer- accuracy the closeness of a set of measurements of the same quantity made in the same way - ...

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, management, control, diagnostic evaluation, education, and care of patients with deficiencies and abnormalities of the ...

Question 1 Correct 5.00 points out of 5.00 Talc is a mineral with low conductivity for heat and electricity which is not attacked by acid. It is used in talcum powder and face powder. Suppose a sample of talc weighs 13.65 g with a density of 1.75 g/cm3 in mineral oil. If this same sample of talc in air weighs 35.97 g, assuming no volume change, what is the density of the talc sample in air? Select one: A. 2.44 g/cm3 B. 2.82 g/cm3 C. 1.61 g/cm3 D. 4.61 g/cm3 E. 2.63 g/cm3 Question 2...

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 plum...

LRA 211 - Chapter 2 | Latest Update | 2024/2025 | Graded A+ Negatively charged Electrons No electrical charge/neutral Neutrons Characteristic of matter Electrical charge When an atom has an equal number of protons and electrons No net charge When an atom gains an extra electron and the negative charges outnumber the positives, resulting in a net negative charge Negative ion When an atom loses an extra electron and the positive charges outnumber the negatives, resulting in a net...

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...