Phosphine, PH3, a reactive and poisonous compound, reacts with oxygen as follows:                    4PH3(g) + 8O2(g) → P4O10(s) + 6H2O(g)If you need to make 6.5 moles of P4O10 , how many moles of PH3 is required for the reaction?

A flask contains two compartments (A and B) with equal volumes of solution separated by a semipermeable membrane. Which diagram represents the final level of the liquids if A is initially a 10% (w/v) glucose solution and B is initially a 20% (w/v) glucose solution?

Which sample contains the largest number of molecules?

A sample of gas contains four gases with the following partial pressures: He (113 mm Hg), Ne (184 mm Hg), Ar (35 mm Hg), and Xe (445 mm Hg). What is the total pressure of the sample in mm Hg?

II. Fill in with UN, UNE, DES. Only use lower case letters. 25 POINTS   table acteur université faculté bureaux objet étudiante différences chanteuse actrices

III. Fill in with LE, LA, L’, LES. Only use lower case letters. 25 POINTS   instrument amie problèmes café actrice télé examen lycée sociologie littérature

I. Mettez les verbes entre parenthèses au passé composé. Faites attention à l’accord du participe passé. 10 POINTS ô  é  è  ê  à  â  ç  ï  î  ù  û  œ Le travail que tu (faire) a été difficile. La voisine que j’ (connaître) s’appelle Yasmine. Quels sont les livres que vous (lire) ? Les amis qu’elle (inviter) au restaurant sont venus en retard. La musique que vous (écouter) est de qualité.

Match the following joints with the type of movement they cause 

At an archeological site you discover a bone that is cylindrical in shape, about one-inch-long and a quarter of an inch wide. Choose the correct classification.

Joints are classified based on their structure. Choose one of the structural classification, list the subtypes and give example of each