Match the element properties with their descriptions. 1. ability to be pulled into a wire
2. how 'shiny' a material is
3. degree of surface smoothness
4. ability to be pounded into shapes
5. the mass of a sample divided by its volume
6. how well a substance flows at a given temperature
7. the ability to dissolve in another substance

a. malleability
b. viscosity
c. density
d. texture
e. solubility
f. luster
g. ductility

Aspirin has a density of 1.40 g/cm3 what is the volume in cubic centimeters of a tablet weighing 320 mg ?

7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation. 8. when a 2.5 mol of sugar (c12h22o11) are added to a certain amount of water the boiling point is raised by 1 celsius degree. if 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? show all calculations leading to your answer or use 3 – 4 sentences to explain your answer. 9. if 5.40 kcal of heat is added to 1.00 kg of water at 100⁰c, how much steam at 100⁰c is produced? show all calculations leading to an answer. 10. the freezing of water at 0⁰c can be represented as follows: h2o (l) ↔ h2o(s) the density of liquid water is 1.00 g/cm3. the density of ice is 0.92 g/cm3. in 3 – 4 sentences explain why applying pressure causes ice to melt.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: