What is avogadros number - Study guides, Class notes & Summaries

What is the charge of a proton? - ANSWERS +1 What is the charge of a neutron? - ANSWERS 0 What is the charge of an electron? - ANSWERS -1 What is the mass of a proton? - ANSWERS 1 What is the mass of a neutron? - ANSWERS 1 What is the mass of an electron? - ANSWERS 1/1800 What is an isotope? - ANSWERS Isotopes of an element are atoms with the same number of protons but different numbers of neutrons. Why do isotopes of an element all have the same chemical properties? - ANSWERS This is...

A-Level Edexcel Mathematics Pure Maths Paper 1 2023 (Summer 2023) How do you make tertiary chloroalkanes? - ANS-Tertiary alcohol + concentrated HCl How do you make bromoalkanes? - ANS-Alcohols + HBr or PBr3 What compound is used to oxidise alcohols? - ANS-Acidified potassium dichromate (can be used to distinguish between types of alcohols) What does a primary alcohol oxidise to? - ANS-first: aldehyde second: carboxylic acid What does a secondary alcohol oxidise to? - ANS-Ketone Why ...

A-Level Edexcel Mathematics Pure Maths Paper 1 2023 (Summer 2023) How do you make tertiary chloroalkanes? - ANS-Tertiary alcohol + concentrated HCl How do you make bromoalkanes? - ANS-Alcohols + HBr or PBr3 What compound is used to oxidise alcohols? - ANS-Acidified potassium dichromate (can be used to distinguish between types of alcohols) What does a primary alcohol oxidise to? - ANS-first: aldehyde second: carboxylic acid What does a secondary alcohol oxidise to? - ANS-Ketone Why ...

HESI A2- Chemistry Paper 1 Exam 2023 Tera - CORRECT ANSWER-(T) 1 quadrillion times- e12 Giga - CORRECT ANSWER-(G) 1 billion times - e9 Mega - CORRECT ANSWER-(M) 1 million times- e6 Kilo - CORRECT ANSWER-(k) 1 thousand times - e3 Hecto - CORRECT ANSWER-(h) 1 hundred times - e2 Deka - CORRECT ANSWER-(D) 10 times - e1 Deci - CORRECT ANSWER-(d) 1 tenth of - e-1 Centi - CORRECT ANSWER-(c) 1 hundredth of - e-2 Milli - CORRECT ANSWER-(m) 1 thousandth of - e-3 Micro - CORRECT ANSWER-(u) 1 mill...

AQA GCSE Chemistry - C4 questions and answers A+ score assured 2024/2025

scientific notation - correct answer -if the exponent is positive it will be a BIG number -if the exponent is negative it will be a SMALL number length - correct answer meter mass - correct answer kilogram temperature - correct answer kelvin time - correct answer second amount of substance - correct answer mole area - correct answer A m^2 volume - correct answer V m^3 density - correct answer D kg/m^3 concentration - cor...

BIOL 213 FINAL EXAM BANK: EXAM 1: EXAM 1 HW: 1. If phosphorus-32 has an atomic number of15, how many neutrons does it usually have? - 17 2. The seed of a desert plant may be dormant for many years without growing, but is still considered to be alive because it? - Possesses heritable information 3. A “rogue” scientist is featured in many movies, but actual scientific discovery and advancement is done as a community, involving lots of dedicated scientists. Once a hypothesis has been supported ...

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 ...

Straighterline CHEM101 Final questions and answers complete solution 100% correct 2024/2025

Tera - ANSWER (T) 1 quadrillion times- e12 Giga - ANSWER (G) 1 billion times - e9 Mega - ANSWER (M) 1 million times- e6 Kilo - ANSWER (k) 1 thousand times - e3 Hecto - ANSWER (h) 1 hundred times - e2 Deka - ANSWER (D) 10 times - e1 Deci - ANSWER (d) 1 tenth of - e-1 Centi - ANSWER (c) 1 hundredth of - e-2 Milli - ANSWER (m) 1 thousandth of - e-3 Micro - ANSWER (u) 1 millionth of - e-6 Nano - ANSWER (n) 1 billionth of - e-9 Pico - ANSWER (p) 1 trillionth of - e-12...