The Periodic Table Depth of
What is the
themeling points of the halogens?
Due the themeling and boiling points in the table to deduce the state of the halogens at-400
write your answers in the table
Dan now in the Sth column to show the trend in the depth of colour (light - dark).
d. Drawn arrow in the 6th column to show the trend in atomic radius (smaller --- larger).
22. Complete these sentences about the displacement reactions of halogens using words from the list
bromine chloring colourless halide halogen
less
more orange
When aqueous
is added to a
solution of potassium
has been displaced
bromide the solution turns
because
This is because
reactive
displaces a reactive
halogen from an aqueous solution of its
b. What would you observe when an aqueous solution of bromine is added to an aqueous solution of potassium
lodide? Explain these observations

Lem 2 the data below are for the system ethyl propyl ether (1)-chloroform (2) at 0.5 bar. use the data to answer the following questions (all questions refer to p d 0: 5 bar). a) what are the boiling points of the pure components at 0.5 bar? b) a mixture with the overall composition z1 d 0: 1 is brought to 47.6ä±c, 0.5 bar. what is the phase? c) 100 mole of a mixture with z1 d 0: 1 (state a) is mixed with 22 mole of pure ethyl propyl ether vapor (state b). the mixing takes place at 47.6 ä±c, 0.5. bar. what is the phase of the resulting mixture (state c)? if the state is a v/l mixture report the number of moles and mole fractions in each phase. d) plot the txy graph and show states a, b and c. the graph must be done by computer and should be properly annotated. ethyl propyl ether (1) - chloroform (2) at 0.5 bar t ( ä±c) x1 y1 t ( ä±c) x1 y1 42.9 0.000 0.000 49.0 0.470 0.455 43.0 0.020 0.010 49.1 0.520 0.520 43.9 0.065 0.029 48.9 0.567 0.592 45.4 0.156 0.089 48.3 0.652 0.720 46.4 0.215 0.142 47.6 0.745 0.815 47.6 0.296 0.223 46.7 0.822 0.872 48.3 0.362 0.302 45.7 0.907 0.937 48.7 0.410 0.375 44.6 1.000

Which of these describes how heat is transferred by convection* a. sunlight travels through space without the aid of fluids or solids. b. warm air rises and takes the heat with it, eventually, it cools and sinks c. air at the equator rises and sinks at the poles. d. air molecules touch the warm ground, heating them up *not conduction

Introduction of drugs into the gastrointestinal tract is a form of administration. a. enteral b. topical c. parenteral d. inhalation