Atomic mass unit amu - Study guides, Class notes & Summaries

Chemistry 115 Final Exam Questions with Verified Solutions Any ionic compound containing group IA or NH4+ cations are.... Always Soluble Ionic compounds containing NO3-, NO2-, ClO3-, ClO4-, C2H3O2-, & HCO3- anions are Always Soluble Ionic compounds containing Cl-, Br-, & I- anions are soluble EXCEPT when combined with... Ag, Hg, and Pb cations Ionic compound containing SO4^2- are soluble EXCEPT when combined with... Ag, Hg, Pb, Ca, Sr, Ba Ionic compounds containing So3^2-, S^2-, CO3^2-, PO4^...

AFOQT Physical Science Exam Questions and Answers All Correct The lowest possible temperature - Answer-Absolut Zero The pressure exerted by the gases in the air. units of measurement are kilopascals, atmospheres, millimeters of mercury, and Torr - Answer-atmospheric Pressure Pressure is 100 kPa, 1atm, 760 mm Hg or 760 Torr - Answer-standard atmospheric pressure the smallest particle of an element a nucleus and its surrounding electrons. - Answer-Atom the mass of an atom measured i...

Abiotic - Non-living, may be within or made by a living organism. Biotic - Living. Matter is considered ______ if it was ever alive at some point in time Atom - Smallest level. The basic unit of matter. Consists of a dense nucleus surrounded by electrons. Molecule - Second level. A chemical structure consisting of at least two atoms held together by a chemical bond. Macromolecule - Third level. Biologically important molecules that are technically polymers. Example: DNA. Cell - Fo...

Chapter 02 Atoms and the Periodic Table 1. The scientist who determined the magnitude of the electric charge on the electron was A. John Dalton. B. Robert Millikan. C. J. J. Thomson. D. Henry Moseley. E. J. Burdge. Blooms: 1. Remember Difficulty: Easy Gradable: automatic Subtopic: Structure of the Atom Topic: Components of Matter 2. When J. J. Thomson discovered the electron, what physical property of the electron did he measure? A. its charge, e B. its charge-to-mass ratio,...

Matter Matter is any substance that occupies space and has mass Elements Elements are unique forms of matter with specific chemical and physical properties that cannot be broken down into smaller substances by ordinary chemical reactions. There are 118 elements, but only 92 occur naturally. The remaining elements are synthesized in laboratories and are unstable Which elements are common to all living organisms? The four elements common to all living organisms are oxygen (O), car...

Atoms correct answer: the basic building blocks of all matter. The smallest unit of an element that can combine with other elements. Subatomic Particles correct answer: The smaller particles that make up atoms - protons, neutrons and electrons. cathode rays correct answer: streams of electrons that are produced when a high voltage is applied to electrodes in an evacuated tube Radioactivity correct answer: The spontaneous emission of radiation by an unstable atomic nucleus Nuclear...

SDSU CHEMISTRY PLACEMENT TEST WITH COMPLETE SOLUTIONS 100% 2023/2024 proton -heavy -positively charged -nucleon neutron -heavy -neutral -nucleon electron -very small (1/1800 of proton) -negative -outside of nucleus properties of nucleus -# of protons determines the element -held together by nuclear force -# of protons is extremely stable unlike # of electrons atomic number equal to the # of protons atomic mass # of protons + # of neutrons averaged across a...

The lowest possible temperature - correct answer -Absolut Zero The pressure exerted by the gases in the air. units of measurement are kilopascals, atmospheres, millimeters of mercury, and Torr - correct answer -atmospheric Pressure Pressure is 100 kPa, 1atm, 760 mm Hg or 760 Torr - correct answer -standard atmospheric pressure the smallest particle of an element a nucleus and its surrounding electrons. - correct answer -Atom the mass of an atom measured in atomic mass units (amu). an...

Question 1 Correct 4.00 points out of 4.00 The SI base unit of mass is Select one: A. g. B. metric ton. C. mg. D. lb. E. kg. Question 2 Correct 4.00 points out of 4.00 The boiling point for liquid nitrogen is 77 K. What is the temperature in degrees Fahrenheit? Select one: A. –289°F B. –321°F C. –127°F D. 662°F E. 177°F Straighterline CHEM101 General Chemistry I Midterm Exam (New Version June 2024) We are a team of experts offering class attendance for all Stra...

Ivy Tech BIOL 105 Exam 1 Questions With 100% Correct Answers Why study biology? - answerWe study biology to help us understand how we and our environment function separately and jointly. If we can better understand how everything functions, it can help improve not only our lives, but preserve the life of our environment. What questions about the natural world have biologists answered? - answerBiologists have been able to answer how our genes work, from how our cells translate our genetic c...