Chemistry, 28.11.2019 04:31 mrsqueenbabe516
Need asap its due today these questions
1.what two sets of units can be used to describe density? why are they interchangeable?
2.a solid block with a length of 6.0 cm, a width of 3.0 cm, and a height of 3.0 cm has a mass of 146 g. what is the block’s density? show all work.
3.to determine the density of an irregularly shaped object, a student immersed the object in 21.2 ml of water in a graduated cylinder causing the level of the water to rise to 27.8 ml. if the object has a mass of 22.4 grams, what is the density of the object? show all work.
4.what is the difference between a measured value and an accepted value? how are these values used to determine the precision of your answer?
5.during a lab activity, students calculate the density of an element to be 7.78 g/cm3. the density listed on the periodic table is 7.13 g/cm3. calculate the percent error and identify the element.
Answers: 2
Chemistry, 22.06.2019 07:00, ceeejay0621
What is the main purpose of patent attorneys? defend the company against legal claims manage financial investments invent new products protect rights to new products and processes
Answers: 1
Chemistry, 22.06.2019 17:10, mikeeway33
Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.
Answers: 2
Chemistry, 22.06.2019 17:40, aaliyahthomas37
Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.
Answers: 1
Need asap its due today these questions
1.what two sets of units can be used to descri...
1.what two sets of units can be used to descri...
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