Chemistry, 17.05.2021 22:00 stormserena
Please help!
Samira watched a demonstration in which a scientist combined two substances in a sealed container and analyzed the results. The ending substances did not look the same as the starting substances.
Samira was given a diagram with the repeating groups of atoms that make up the starting substances, plus information about the properties of the starting and ending substances. She created a model of the repeating groups of atoms that might make up the two ending substances.
A.) Does her model correctly show why the properties of the ending substances are different from the properties of the starting substances?
B.) Describe what could be correct or incorrect about her model
Look at the diagram below then write your answer to question 13 part "A" and "B".
Answers: 3
Chemistry, 22.06.2019 07:00
How many moles are in 7.2 x 10^23 carbon molecules? (*round to the nearest hundredth and include the unit "mol c" after your number) question 6 options:
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
Chemistry, 22.06.2019 18:10
The atom fluorine generally will become stable through the formation of an ionic chemical compound by accepting electron(s) from another atom. this process will fill its outer energy level of electrons.
Answers: 1
Please help!
Samira watched a demonstration in which a scientist combined two substances in a seale...
History, 29.01.2021 19:50
History, 29.01.2021 19:50
Chemistry, 29.01.2021 19:50
Mathematics, 29.01.2021 19:50
Mathematics, 29.01.2021 19:50