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Physics and Chemistry 3rd ESO                                                               Albarregas High School        ...
Physics and Chemistry 3rd ESO                                                       Albarregas High SchoolActivity 4: Whic...
Physics and Chemistry 3rd ESO                                                            Albarregas High SchoolMIXTURE    ...
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Mixures solution and pure substances activities

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Mixures solution and pure substances activities

  1. 1. Physics and Chemistry 3rd ESO Albarregas High School MIXTURES, SOLUTIONS AND PURE SUBSTANCES ActivitiesActivity 1: Complete the list with words you have to know in this unit:English Spanish Definition Mixture whose components cant be distinguished. (two different synonyms) solubilidadconcentratedsolvent The minor component of a solution Pure substance that can be separated in others. mezcla heterogénea filtración Amount of solute per quantity of solution Separation of two liquids that have different boling points.elementActivity 2: Classify the following substances: water, granite, iron, whisky, sea water, steel, mercury,gold, air, ammonia, water with soil, wine, butane, oxygen. SUBSTANCES MIXURES ELEMENT COMPOUND HOMOGENEOUS HETEROGENEOUS WaterActivity 3: Match the following words: Gasoline Element Water Homogeneous mixture Gold Heterogeneous mixture Water with sand CompoundTeacher: José Vicente Pacheco Pág 1 de 3
  2. 2. Physics and Chemistry 3rd ESO Albarregas High SchoolActivity 4: Which of the following metallic materials are pure substances? SUBSTANCE PURE SUBSTANCE ALLOY (SOLUTION)Gold (Au)Mercury (Hg)SteelIron (Fe)Lead (Pb)BronzeCopper (Cu)Brass (Cu + Zn)Activity 5: Indicate which of the following systems are heterogeneous or homogeneous: Granite, aniron nail, wine, basket full of clothes, ink, water, sea, air, water with soil, stew (cocido) and icewater. HOMOGENOUS HETEROGENOUSActivity 6: Indicate which material is a mixture, which an element and which a compound.Activity 7: Indicate which substances are in the following mixtures: (Look up the information oninternet if you need it) .Teacher: José Vicente Pacheco Pág 2 de 3
  3. 3. Physics and Chemistry 3rd ESO Albarregas High SchoolMIXTURE SUBSTANCES MIXTURE SUBSTANCESSea water Water and salt GraniteMilk WineAir BronzeSteel Fizzy drinkActivity 8: All of these sentences are false. Rewrite them in the correct way:a) The air at the top of a mountain is purer than the air at the center of a very big city.b) Pure water is a mixture made of hydrogen and oxigen.c) Solutions are liquid mixtures made of a liquid and another subtance.d) Every homogenus system is a pure substance.e) A filter can be used to separate salt and water.f) Air is a compound made of several gasses: nitrogen, oxygen, carbon dioxyde, etc...In SpanishActividad 9: Disponemos de una disolución al 12 % de azúcar en agua. ¿Cuántos gramos de azúcarhay en 100 g de disolución? ¿Cuántos gramos de azúcar hay por cada 100 g de agua?.Actividad 10: Una persona se bebe 4 botellines de cerveza al 5,2 % en volumen, sabiendo que cadabotellín tiene 200 cm3, ¿cuántos cm3 de alcohol ha consumido?. ¿Cuánta agua ha consumido?.Actividad 11: ¿Cuántos mL de una disolución de 45 g/L debo coger para tener 27 g de soluto ?Actividad 12: Se prepara una disolución , disolviendo 88,750 g de cloruro de hierro (III) ( FeCl 3) en228,225 g de agua, obteniéndose 0,250 litros de disolución. Expresar la concentración de ladisolución resultante en: % en peso y en g/LActividad 13: De 100 mL de una disolución de sal en agua al 30 % en peso se cogen 25 mL. a) ¿Cuál será la concentración de estos 25 mL? b) A los 100 mL al 30 % en peso se le añaden 100 mL de agua, ¿cuál será su concentración ? c) ¿Cuál tendrá más cantidad de sal la disolución a) o la b) ?Actividad 14: En un recipiente de 20 litros hay 4 g de oxígeno, 6 g de nitrógeno y 12 g de butano.Determina la concentración de cada componente en g/L y en % en peso. ¿Cuál será la densidad dela mezcla?Actividad 15: Necesito preparar una disolución de 4 Kg con un 20% de sal y el resto de agua.¿Cómo lo harías? Explica paso a paso el procedimiento a seguir. Activities from your P&C book: Page 45: Activities 11 and 12; Page 52: Activities 26 and 27Teacher: José Vicente Pacheco Pág 3 de 3

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