Avagadros Study guides, Revision notes & Summaries

Chemistry AQA AS EXAM 2024 QUESTIONS WITH 100% CORRECT ANSWERS Mass number - ANSWERS Total number of protons and neutrons. Atomic number - ANSWERS Numbers of protons in the nucleus and number of electrons in shells. Negative Ions - ANSWERS More electrons than protons. Positive ions - ANSWERS More protons than electrons. Relative isotopic mass - ANSWERS mass of an atom of an isotope of an element on a scale where an atom of carbon12 is 12. Relative atomic mass - ANSWERS average mass o...

What is Avagadro's constant? Correct Answer 6.02 x 10^23 number of particles in a mol Define empirical formula Correct Answer The simplest whole number ratio of atoms of each element present in a compound Define molecular formula Correct Answer The number and type of atoms of each element in a molecule What is water of crystallisation? Correct Answer Water molecules that are bonded into a crystalline structure of a compound What is the ideal gas equation? What are the units of each ...

Chemistry AQA AS Questions 100% Correct Answers Mass number -ANSWER Total number of protons and neutrons. Atomic number -ANSWER Numbers of protons in the nucleus and number of electrons in shells. Negative Ions -ANSWER More electrons than protons. Positive ions -ANSWER More protons than electrons. Relative isotopic mass -ANSWER mass of an atom of an isotope of an element on a scale where an atom of carbon12 is 12. Relative atomic mas...

DAT General Chemistry Exam |170|questions with complete solution Atomic Number ANS-number of protons found in that atom; low number; (Z) Mass Number ANS-Protons + Neutrons; high number; (A) Atomic Mass ANS-relative mass of that atom compared to the mass of a carbon-12 atom (which is set at 12.00); measured in amu; 1 amu = ANS-1.66x10^-24 Atomic Weight ANS-weight (g) of one mole (mol) of a given element (g/mol); the weighted average of all the masses (not the weights) of an element, ...

Mass number - ANSWERS Total number of protons and neutrons. Atomic number - ANSWERS Numbers of protons in the nucleus and number of electrons in shells. Negative Ions - ANSWERS More electrons than protons. Positive ions - ANSWERS More protons than electrons. Relative isotopic mass - ANSWERS mass of an atom of an isotope of an element on a scale where an atom of carbon12 is 12. Relative atomic mass - ANSWERS average mass of an atom of an element on a scale where an atom of carbon12 is ...

Chem 120 Exam 1 with Solutions 2024 SI unit for Temperature - - C F - - (9/5 C) + 32 C - - 5/9 (F -32) K - - C+273.15 density - - mass/volume 1 mL - - =1cm^3 = 1cc percent error - - difference from known value/known value x 100 sig fig for Addition/Subtraction - - answer has the same number of decimal places as the factor with the least amount of decimal places sig fig rules for multiplication/ division - - answer has the same amount of sig figs as the factor with the least amount of ...

CHEM 121 FINAL EXAM! kinetic molecular theory fundamental particle h2o molecule atom molecule element compound the same solution density atomic number mass number isotope atomic mass alkali metals alkali earth halogens properties of metals properties of non metals avagadros number ionic bond covalent bond naming covalent compounds naming ionic compounds properties of ionic compounds percent composition ionic empirical formula molecular formula precipitate

Chem 120 Exam 1 with Solutions 2024 SI unit for Temperature - - C F - - (9/5 C) + 32 C - - 5/9 (F -32) K - - C+273.15 density - - mass/volume 1 mL - - =1cm^3 = 1cc percent error - - difference from known value/known value x 100 sig fig for Addition/Subtraction - - answer has the same number of decimal places as the factor with the least amount of decimal places sig fig rules for multiplication/ division - - answer has the same amount of sig figs as the factor with the least amount of ...

CHEM 120 EXAM 1 QUESTIONS WITH CORRECT DETAILED ANSWERS

kinetic molecular theory - answers all matter is made of tiny particles that are constantly moving fundamental particle - answers take a macroscopic object and divide it repeatedly. Eventually you have a particle, which, if further divided is no longer the original substance. This smallest piece of the substance is called... h2o molecule - answers the fundamental particle of water is what? atom - answers the basic unit of a chemical element molecule - answers two or more atoms (same ...