Chemistry, 28.05.2021 01:40 ashleyremon901
An electron’s position cannot be known precisely. Only its probability of being in a certain location can be known.
Bohr model
plum pudding model
electron cloud model
Answers: 3
Chemistry, 21.06.2019 12:50
Which phrase best describes the rock's texture? 1.jagged grains 2.coarse grains 3.rounded grains 4.non-banded grains
Answers: 1
Chemistry, 22.06.2019 03:30
Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?
Answers: 3
Chemistry, 22.06.2019 12:00
Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.
Answers: 2
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
An electron’s position cannot be known precisely. Only its probability of being in a certain locatio...
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