Edit al least six lines to obtain energy

Which periodic gruop has the smallest atomic radiis

Alik [6]

Answer:

Helium

Explanation:

7 0

3 years ago

A galvanic cell with E o cell = 0.30 V can be constructed using an iron electrode in a 1.0 M Fe(NO3)2 solution, and either a tin

Andreyy89

Answer: The half reactions are written below.

Explanation:

Oxidation reaction is defined as the reaction in which an atom looses its electrons. The oxidation number of the atom gets increased during this reaction.

$X\rightarrow X^{n+}+ne^-$

Reduction reaction is defined as the reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

$X^{n+}+ne^-\rightarrow X$

We are given a chemical cell which is Fe-Sn cell. The half reaction follows:

Oxidation half reaction: $Fe\rightarrow Fe^{2+}+2e^-;E^o_{Fe^{2+}/Fe}=-0.44V$

Reduction half reaction: $Sn^{2+}+2e^-\rightarrow Sn;E^o_{Sn^{2+}/Sn}=-0.14V$

The substance having highest positive $E^o$ potential will always get reduced and will undergo reduction reaction. Here, zinc will always undergo reduction reaction will get reduced.

Total cell reaction: $Fe+Sn^{2+}\rightarrow Fe^{2+}+Sn$

Hence, the half reactions are written above.

3 0

3 years ago

A potential energy diagram to illustrate this reaction mechanism is, assuming that the overall reaction is endothermic. Label re

Stels [109]

Use the concentration and rate data presented in the table below to answer the following questions about the hypothetical reaction:

A + 2B + 4C→ 2D + E

Line[A] (mol/L)[B] (mol/L)[C] (mol/L)Rate (mol/L.s)10.1000.1000.1003.6 x 10-220.2000.1000.1003.6 x 10-230.1000.2000.1007.2 x 10-240.2000.2000.2002.9 x 10-150.3000.2000.300?Why would you expect this reaction to be a multi-step reaction, based on the overall reaction?What is the order of the reaction, with respect to each reactant?What is the overall order of the reaction?Write the rate law equation.How does the rate law equation confirm that this is a multi-step reaction?Predict the rate indicated by the “?”Propose a reaction mechanism using the criteria presented in the lesson, with the third step as the rate-determining step.Draw a potential energy diagram to illustrate this reaction mechanism, assuming that the overall reaction is endothermic. Label reaction intermediates with the “RI”, and activated complexes with “AC”

3 0

3 years ago

Which group of elements ,in the periodic table, would most likely be used for electrical wires?

grin007 [14]

Most electrical wiring uses copper

5 0

3 years ago

Acid indigestion is sometimes neutralized with an antacid such as magnesium hydroxide (Mg(OH)2). What products will be released

Lunna [17]

Answer: d) $MgCl_2$ and $H_2O$ 

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

A neutralization reaction is a double displacement reaction in which an acid reacts with base to produce salt and water. The $H^+$ ions from water reacts with $OH^-$ ions from base to give water.

$2HCl+Mg(OH)_2\rightarrow MgCl_2+2H_2O$

Thus products that will be released when the antacid is mixed with the hydrochloric acid in the stomach are $MgCl_2$ and $H_2O$ 

3 0

3 years ago

Edit al least six lines to obtain energy​

Edit al least six lines to obtain energy