Blog

The surroundings does 37 J of work on the system. The system…

The surroundings does 37 J of work on the system. The system receives 23 J of work from the surroundings. The system emits 81 J heat. What is the change in internal energy of the system? Exact sig figs required. Answer in J. Do not use scientific notation. Do not type units. 

Periodic Table: periodic table for tests.pdf (remember you c…

Periodic Table: periodic table for tests.pdf (remember you can use the zoom in and out buttons). What is the molecular mass of BeCl2? Exact sig figs required. Answer in g/mol. Do not use scientific notation. Do not type units. Canvas may add leading or trailing zeros to your answer; these will NOT affect your grade.

Pay close attention to sig figs. Use the periodic table and…

Pay close attention to sig figs. Use the periodic table and formula sheet included with this quiz. Some questions require exact sig figs. These are noted with “exact sig figs required.”   You must click the link. Do NOT click on the download symbol . You cannot download: HonorLock will prevent you from downloading. Periodic Table: periodic table for tests.pdf Formulas and Constants: 2045 most of the equations.pdf Solubility and Oxidation Numbers: soubility and oxidation numbers.pdf Electronegativities: bde electronegativity bond polarity charts.pdf

224 mL of 0.65 M glucose is diluted to a total volume of 455…

224 mL of 0.65 M glucose is diluted to a total volume of 455 mL. What is the final concentration of glucose?  Answer in M. Do not use scientific notation. Do not type units. Canvas may add leading or trailing zeros to your answer; these will NOT affect your grade.