5.2

Question 1

WHY DOES LATTICE ENTHALPY GET MORE EXOTHERMIC WHEN U GO ACROSS A PERIOD OF METALS?

Answer 1

IONIC CHARGE INCREASES ANDDD IONIC RADIUS DECREASES- STRONGER ATTRACTION TO NEGATIVE ions.

Question 2

IS 1ST ELECTRON AFFINITY ENDO OR EXOTHERMIC? AND WHY

Answer 2

USUALLY EXO- the energy released when the nucleus attracts the the additional electron is larger than the energy absorbed to overcome inter-electronic repulsion.

Question 3

IS 2ND ELECTRON AFFINITY EXO OR ENDOTHERMIC AND WHY

Answer 3

ALWAYS ENDO-an additional electron is added to a negative ion.

Question 4

WHEN DRAWING HALF CELLS REMEMBER

Answer 4

THE SAME ELEMENTS RAE ON THE SAME SIDES DUH ARIADNE

Question 5

WHEN DESCRIBING ELECTRODE POTENTIALS SAY

Answer 5

MORE POSITIVE/MORE NEGATIVE: CANT JUST SAY HIGHER OR LOWER APPARENTLY.

Question 6

WHAT COLOUR DOES STARCH GO WHEN IODINE DISSAPEARS

Answer 6

BLUE TO COLOURLESS

Question 7

how do u explain that melting something increases entropy?

Answer 7

because it turns from a solid into a liquid. literally.

Question 8

what is the free energy change equation?

Answer 8

ΔG=ΔH-TΔS.