Rubbing alcohol or isopropanol can be described by the chemical formula C3H7OH One milliliter of isopropanol has a mass of
0.76 9. so its density is 0.76 g/ml Isopropanol is often used as a cleaner or a disinfectant and evaporates when placed on warm
objects However, caution must be taken when using isopropanol, because it is also highly flammable
Which of the following is a chemical property of isopropanol?
A. Isopropanol is flammable
B. Isopropanol evaporates when placed on a warm object
C. Isopropanol has a density of 0 76 g/ml
D. One ml of isopropanol has a mass of 0.769

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

the elements of art are the visual tools that the artist uses to create a composition. these are line, shape, color, value, form, texture, and space.

the principles of art and design are balance, contrast, emphasis, movement, pattern, rhythm, and unity/variety.