Answer:
(a) An experiment was conducted, response variable is the concentrations of the chemical
Explanation:
According to Oxford dictionary; an experiment is; "a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact."
The aim of the entire study is to discover the concentration of a certain chemical at various depths of the river. This means that the entire procedure was undertaken for the purpose of discovery. Hence it is an experiment.
The independent variable here is the depth of the river while the response variable is the concentration of the chemical of interest at each depth.
A responding variable changes as changes are made in the independent variable. The variable that is manipulated in an experiment is the independent variable.
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The answer is b so that is it!!!!!!!!!
An ion is an atom or group of atoms in which the number of electrons is not equal to the number of protons, giving it a net positive or negative electrical charge.
Due to this, anoin which is a negatively charged and is attracted to the anode (positive electrode) in electrolysis. and is considered as a proton.
however Cations are positively charged and are attracted to cation ( negative electrode). its know as a electron .
So, the net positive or negative electrical charge explains the difference in the amounts of phosphate and strontium.
An ion can never have the same amount of anions and cations.
Answer:
Four different reagent where used 1) BH3 & 2) H2O2/NaOH to produce butanol, followed by 3)PBr3 to produce Bromobutane and finally 4) NaOBu to produce the dibutylether
Explanation:
Please find attached the step by step reaction
