Atoms and Reactions - Part 1, As, Unit 1, Module 1

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A K J J O T S K T B G Y C D P T W W E T L
D V E H K A B X P L S S S H B T U G S G V
H S T A N D A R D S O L U T I O N Y Y I K
C A B M A B X K K C V A M L U C V R L H E
S F V F M A S S N U M B E R B U D P X H R
T P X L R Y W B Q Y G K L A B C N W K K H
E X M B Y S B S V M U M K O V I Y T Q W I
Y R D M O L E C U L A R F O R M U L A N M
K Y E C O N C E N T R A T I O N L X J Q I
R E L A T I V E I S O T O P I C M A S S O
M G X W U B X M O L A R V O L U M E D M I
N B H X P J G A T O M I C N U M B E R T K
H K M F I Y K T S B P G P O V M H U F W T
S J E M P I R I C A L F O R M U L A J J Q
D R Q Y T I E T S W P F K T B E X C M A W
S T O I C H I O M E T R Y X I Q N D N F C
R E L A T I V E A T O M I C M A S S O B K
O V O F P Y N N X U S T H Y U M P C Q K W
T Y U U D G W U V H N V R G F Q J A J N V
E R B Q P G G Y D N T P S I A G L H V L J
J L D Q X K O O C I M W G H D Q Q R X F O

Clues

  • a solution of a known concentration. Standard solutions are normally used in titrations to determine unknown information about another substance. (8, 8)
  • The actual number of atoms of each element in a molecule. (9, 7)
  • The amount of solute, in mol, dissolved per 1 dm3 of solution. (13)
  • The mass of an atom of an isotope compared with one-twelfth of the mean mass of an atom of carbon-12. (8, 8, 4)
  • the molar relationship between the relative quantities of substance taking part in the reaction. (13)
  • The number of particles in the nuclues. (4, 6)
  • The number of protons in the nucleus of an atom. (6, 6)
  • The simplest whole-number ratio of atoms of each element present in a compound. (9, 7)
  • The volume per mole os a gas. The units of molar volume are dm3 mol-1. At room temperature and pressure, the molar volume is approximately 24.0dm3mol-1. (5, 6)
  • The weighted mean mass of an atom of an element compared with one-twelfth of the mass oof an atom of carbon-12 (8, 6, 4)

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