Valency Study guides, Class notes & Summaries

CSP1501 Assignment 3 (DETAILED ANSWERS) 2024 - DISTINCTION GUARANTEED Answers, guidelines, workings and references ................... QUESTION 1 [35] 1. Two high school leaners came to you confused about the physical properties of metals and nonmetals, in a table form contrast the differences between the physical properties of metals and nonmetals (10) 2. Periodic table is the organized array of all the chemical elements in order of increasing atomic number, that is the total number of proton...

IB Chemistry: Stoichiometry Rated A+ mole the amount of a substance which contains the same number of chemical species as there are atoms in exactly 12 grams of the isotope carbon-12 relative atomic mass the average mass of the atoms of an element relative to 1/12 the mass of an atom of carbon-12 Avogadro's constant the number of particles in one mole of a substance; equal to 6.02 x 10^23 empirical formula shows the simplest ratio of the atoms of different elements in a compound ...

Well-structured CSP1501 Assignment 3 (ANSWERS) 2024 - DISTINCTION GUARANTEED. (DETAILED ANSWERS - DISTINCTION GUARANTEED!). .... QUESTION 1 [35] 1. Two high school leaners came to you confused about the physical properties of metals and nonmetals, in a table form contrast the differences between the physical properties of metals and nonmetals (10) 2. Periodic table is the organized array of all the chemical elements in order of increasing atomic number, that is the total number of protons in ...

Dementia Violent UNFOLDING Reasoning Ron Jackson is an 87-year-old Caucasian male with a medical history of hypertension and Alzheimer's disease who was brought to the emergency department (ED) by paramedics for evaluation of hallucinations, increased agitation, and aggressive behavior toward Shirley, his elderly wife....

Organic chemistry definition - Answer-Carbon-containing compounds Three main features characterize organic chemicals: - Answer-(1) their carbon skeleton (2) their functional group(s) (3) structural complexity, chemical diversity Carbon: General Features - Answer-*Atomic number, Z, is 6 *Four valence electrons ([He]2s^22p^2) *Second row (period) element *Forms mainly covalent bonds (maximum of 4) to attain octet valency *Carbon atoms bond to each other: Concatenation (linking as in a ...

One calorie is defines as the amount of heat requires to raise ______ kg of water by ______ degrees celcius - ANSWER 1 1 The sun transfers its energy to a car and subsequently warms it. The term that describes this process is - ANSWER heat this term describes how hot or cold an object is - ANSWER temperature The energy yield from food is in part determined by the efficiency of digestion - ANSWER coefficient of digestibility Why do lipids contain more energy that carbs or...

AQA GCSE Chemistry PAPER 1 Exam Questions With All Correct Answers Relative masses, charges of subatomic particles - CORRECT ANSWER Proton: 1, +1 Neutron: 1, 0 Electron: Negligible, -1 Relative Atomic Mass definition - CORRECT ANSWER Average mass of atoms of that element taking into account the mass and amount of each isotope it contains, on a scale where the mass of a C-12 atom is 12 Relative Atomic Mass formula - CORRECT ANSWER ((mass no.1×%abundance)+(mas...

Describe a neuron. What is a nerve? Starts with the dendrites and goes to the cell body then down the axon, which is covered in the myelin sheaths (dont forget nodes of ranvier), then down to the axon terminal. "Nerves" are bundles of neurons What is different between sensory/afferent and motor/efferent neurons? Are both found in nerves Sensory/ afferent neurons conduct impulses in CNS Motor/ Efferent neurons carry impulses out of CNS. (Somatic and autonomic) How do cells signal one another...

Atomic number - correct answer Number of protons in an element Mass number - correct answer Number of protons and neutrons Ion - correct answer Electrically charged particle formed by the loss/gain of electrons Relative masses of P,N and E - correct answer 1,1, 1/2000 (respectively) Isotopes - correct answer Atoms of the same element with different number of neutrons but same number of protons. What are steps of mass spectroscopy? - correct answer Ionisation, Acceleration, Deflect...

CIBTAC Theory Questions with correct Answers 2024 What function is performed by the sudoriferous glands? Elimination of waste material through perspiration Which muscle does NOT help in Mastication? Risorious Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:06 / 0:15 Full screen The dermis of the skin is composed of? Dense connective tissue An ingredient of face masks that has strong absorbent properties is? Kaolin...