Chemistry, 12.08.2019 22:30 soonerlady19
Osmium (os) is the densest element known (density =22.57 g/cm^3). calculate the mass in pounds and in kilograms of an os sphere 15 cm in diameter (about the size of a grapefruit) (volume of a sphere of radius r is 4/3ïr^3).
Answers: 2
Chemistry, 21.06.2019 19:00
Asmall amount of a solid is added to water. the observation made after fifteen minutes is shown in the figure. which of these solids has been probably added to water? a) oil b) sand c) sugar d) wood chips
Answers: 1
Chemistry, 21.06.2019 23:00
A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?
Answers: 1
Chemistry, 22.06.2019 21:00
Once similarity and one difference between a mixture of elements and a mixture of compounds
Answers: 3
Chemistry, 23.06.2019 01:30
The biomedical technique in which a part of the brain is destroyed with electric current is known as a. electroconvulsive therapy b. prefrontal lobotomy c. bilateral cingulotomy d. tardive dyskinesia
Answers: 2
Osmium (os) is the densest element known (density =22.57 g/cm^3). calculate the mass in pounds and i...
English, 01.08.2019 07:30
Mathematics, 01.08.2019 07:30
Mathematics, 01.08.2019 07:30
Chemistry, 01.08.2019 07:30
English, 01.08.2019 07:30
Business, 01.08.2019 07:30
Social Studies, 01.08.2019 07:30
Biology, 01.08.2019 07:30
Social Studies, 01.08.2019 07:30
Social Studies, 01.08.2019 07:30
Business, 01.08.2019 07:30