SCINCE

• WHAT ATOM OR GROUP OF ATOMSS HAS AN ELECTRIC CHARGE, EITHER POSITIVE OR NEGATIVE?

  Ion
• WHAT IS THE SI UNIT USED TO MEASURE THE AMOUNT OF SUBSTANCE WHOSE NUMBER OF PARTICLES IS THE SAME AS THE NUMBER OF ATOMS OF CARBON IN EXACTLY 12G OF CARBON -12?

  Mole
• WHAT BRANCH OF CHEMISTRY STUDIES THE STRUCTURE PROPERTIES, COMPOSITION REACTIONS AND PREPARATIONS OF CARBON CONTAINING COMPOUND?

  Organic chemistry
• WHAT DO YOU CALL THE MOLECULES THAT CONTAIN CARBON ATOMS COVALENTLY BONDED TO HYDROGEN ATOMS AND OTHER ELEMENTS COMMONLY OXYGEN, NITROGEN, SULFUR AND PHOSPHORUS?

  ORGANIC COMPOUND
• WHAT IS FORMED THROUGH COMPLETE TRANSFER OF ELECTRON FROM ONE ATOM TO ANOTHER ATOM?

  IONIC BONDING
• HE IS A FRENCH CHEMIST WHO PROPOSED A SCIENTIFIC LAW WE NOW CALL THE LAW OF DEFINITE PROPORTION?

  JOSEPH PROUST
• WHAT CAN BE USED TO COUNT "REPRESENTATIVE PARTICLES" ATOMS, MOLECULES, IONS, AND FORMULA UNITS?

  Avogadro's number
• CHEMIST NEED TO KNOW THE ELEMENTS PRESENTS IN A COMPOUND AND IN WHAT AMOUNT/QUANTITY. WHICH OF THE FOLLOWING OPITON TELLS YOU THE PERCENTAGE OF THE MASS MADE UP BY EACH ELELMENT IN A COMPOUND?

  percentage composition
• WHAT DO YOU CALL THE NUMBER OF ELECTRONS AN ATOM GAINS OR LOSES?

  AN ION
• THIS STORES ENERGY FOR LONG TERM AND USED FOR WATERPROOF COVERING.

  LIPIDS
• WHICH FORMULA TELLS THE ACTUAL NUMBER OF ATOMS IN A MOLECULE?


  MOLECULAR FORMULA
• WHO SAID THAT NO ONE CAN PREDICT THE EXACT PATH AN ELECTRON WILL FOLLOW AS IT MOVES AROUND THE NUCLEUS?

  Werner Heisenberg
• AVOGADRO'S NUMBER IS THE NUMBER OF UNITS IN ONE MOLE OF ANY SUBSTANCE, WHAT IS THE EQUIVALENT OF AVROGADO'S NUMBER OF REPRESENTATIVE PARTICLES?

  1 MOLE
• WHAT IS THE NAME OF THE MODEL OF THE ATOM THAT SCIENTISTS USE TODAY?

  Quantum mechanical model
• HOW MANY ORBITALS ARE PRESENTS IN THE THIRD PRINCIPAL ENERGY LEVEL?

  9
• WHAT IS THE BASIS OF LEWIS DOT STRUCTURE?

  OCTET RULE
• WHICH HYDROCACRBON IS COMMONLY USED IN FUEL CANISTERS FOR GAS CAMPING STOVES AND LANTERNS?

  BUTANE
• THE LABEL OF THE DARK CHOCOLATE INDICATES THAT ITS MASS IS 150G AND IT IS 70% CACAO, IF YOU CONSUMEM THE WHOLE CHOCOLATE BAR HOW MUCH CACAO DID YOU EAT?

  105g
• WHAT DOES IT MEAN IF K ATOM BECOMES K+ IONS?

  IT HAS LOST 1 ELECTRON
• WHICH IS THE CORRECT VALENCE ELECTRON OF ELEMENT FOOUND IN GROUP 2 OF THE PERIODIC TABLE?

  4S2
• HOW MANY MOLES OF WATER ARE PRESENT IN 250G OF ICE?

  13.9 MOL H2O
• WHICH OF THESE SETS OF UNITS IS USED TO REPRESENT MOLECULAR MASS?

  g/mol
• WHICH OF THE FOLLOWING ARE THE MAIN COMPOSITIONS OG ORGANIC COMPOUND?

  Carbon and hydrogen
• WHICH HYDROCARBON HAS A DOUBLE BOND IN THE MOLECULE?

  ALKENE
• THE MOLECULAR ,ASS OF WATER IS 18 G/MOL. HOW MANY MOLES OF WATER IS FOUND IN 6 GRAMS OF WATER (H2O)?


  0.33 MOL
• WHICH OF THE GIVEN COMPOUND IS NOT AN ORGANIC COMPOUND?

  CaO
• A LASTING ATTRACTION BETWEEN ATOMS, IONS OR MOLECULES THAT ENABLES THE FORMATIONS OF CHEMICAL COMPOUND IS CALLED?

  Chemical bonding
• what is formed through complete transfer of electron from one atom to another atom?

  Ionic bonding
• what is the group and period of an element with an electronic configuraftion 1s2, 2s2, 2p6?


  group 18 period 2