The best reagent and condition for a chemical reaction is dictated by the reactants at hand and the substance that you're trying to produce. For instance, to convert an alkene into an alcohol, Osmium Tetroxide (OsO4) at room temperature would be an example of an ideal reagent and condition.
In chemistry, when you are asked to place the best reagent and conditions in a reaction box, you are trying to predict the proper chemical, heat, or pressure conditions that will foster a certain chemical reaction. This requires understanding of substances' chemical properties, behavior under different conditions, and reaction mechanisms. For instance, if we want to oxidize an alkene into an alcohol, we would choose a reagent like Osmium Tetroxide (OsO4). In this case, OsO4 would be our 'best reagent', and room temperature may serve as the ideal condition as it generally facilitates this process. Each reagent and condition depend on the reactants you start with and the product you want at the end.
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(2) hydroxide ions as the only positive ions
(3) hydronium ions as the only negative ions
(4) hydronium ions as the only positive ions
Answer: Option (1) is the correct answer.
Explanation:
Sodium hydroxide is a strong base and when it is dissolved in water it completely dissociates into ions.
The chemical equation for this dissociation is as follows.
Therefore, we can see that sodium ions are the only positive ions and hydroxide ions are the only negative ions formed upon dissociation of NaOH in water.
Thus, we can conclude that the compound NaOH(s) dissolves in water to yield hydroxide ions as the only negative ions.
B Bromine gas reacts with a solution of potassium chloride to form potassium bromide and chlorine gas.
C Potassium bromine gas reacts with liquid chlorine to form potassium chloride in solution and bromine gas.
D Chlorine gas reacts with potassium bromide to form potassium chloride in solution and liquid bromine.
Answer:
?
Explanation:
What are the statements? You've given the passage but not the statements
Based on the diagram, which of these inferences is most likely correct?
A.Layer A is older than Layer B.
B.Layer C is older than Layer E.
C.Layer F is younger than Layer D.
D.Layer B is younger than Layer G.
B) elements with higher ionization energy tend to have less valence electrons
C) atoms with nearly full valence electrons shells have lowers ionization energy
D) high ionization energy indicated a low likelihood to gain valence electrons