Here is the data a scientist collected from a sample of river water after filtering:
The data support which of the following descriptions of the sample?
A.
It’s a mixture because dissolved ions in the water pass through the filter paper
B.
The substance is pure because the solid particles cannot pass through the filter paper
C.
It’s a mixture because solid particles are separated from the river water.
D.
It is a pure substance because the river water is composed of free elements
Answers: 1
Chemistry, 22.06.2019 04:00
The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed
Answers: 1
Chemistry, 22.06.2019 06:00
This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light
Answers: 2
Chemistry, 22.06.2019 16:30
For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.
Answers: 2
Here is the data a scientist collected from a sample of river water after filtering:
The data supp...
Biology, 04.01.2021 03:10
Mathematics, 04.01.2021 03:10
Chemistry, 04.01.2021 03:10
Mathematics, 04.01.2021 03:10
Mathematics, 04.01.2021 03:10
Mathematics, 04.01.2021 03:10
Mathematics, 04.01.2021 03:10
Mathematics, 04.01.2021 03:20