Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation

[tex]3Mg(s)+2SnCl_3(aq)\rightarrow 3MgCl_2(aq)+2Sn(s)[/tex]

Explanation:

Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.

A more reactive element is one which can easily lose or gain electrons as compared to the other element.

As Magnesium is more reactive than tin, it can easily displace tin from its salt solution [tex](SnCl_3)[/tex] and form magnesium chloride and tin in elemental form.

The balanced chemical equation is:

[tex]3Mg(s)+2SnCl_3(aq)\rightarrow 3MgCl_2(aq)+2Sn(s)[/tex]

1) Yes

2) No

Explanation:

A strip of solid magnesium metal is put into a beaker of 0.053M ZnSO4 solution-YES

A chemical reaction occurs

Mg(s) + ZnSO4(aq) > MgSO4(aq) +Zn(s)

This reaction is possible because magnesium is far higher than zinc in the activity series of metals hence magnesium can displace zinc from a solution of a zinc salt.

A strip of solid zinc metal is put into a beaker of 0.058M MgBr2 solution. NO

A chemical reaction does not occur because magnesium is higher than zinc in the activity series hence zinc cannot displace magnesium from a solution of its salt.

1.Fe(s) + Cu(NO3)2(l) = Fe(NO3)2(l) +Cu(s) gibbs energy is negative hence reaction will move forward

Explanation:

Solid iron strip will react with Cu(NO3)2 solution but copper will not react with FeSO4 solution because gibbs energy of this reaction is positive and the reaction is only occur when gibbs energy is negative.

1.Fe(s) + Cu(NO3)2(l) = Fe(NO3)2(l) +Cu(s) gibbs energy is negative hence reaction will move forward

2.Cu(s) + FeSO4(l) = Fe(S) +CuSO4(s) gibbs energy is positive hence reaction will not occur

[tex]Fe_{(s)} + Cu(NO_{3}) _{2(aq)} ==== Fe(NO_{3})_{2(aq)} + Cu_{(s)}[/tex]

Explanation:

Iron is more reactive than copper so if solid iron is introduced into a beaker containing copper nitrate solution, iron will displace copper from the solution forming solid copper while iron enters into solution as ions.

In the second case, if copper is introduced to a solution of iron, there won't be any reaction because copper is less reactive than copper and therefore will not displace iron from a solution of it's salts

Answer :

Part 1 : Yes, this reaction will take place.

Part 2 : No, this reaction will not take place.

Explanation:

Single replacement reaction : A chemical reaction in which the more reactive element replace the less reactive element.

It is represented as,

[tex]A+BC\rightarrow AC+B[/tex]

In this reaction, A is more reactive element and B is less reactive element.

Reactivity series : It is used to determine the products of the single displacement reactions. As we know that in a single displacement reaction, the most reactive metal displaces the least reactive metal.

Part A :

This reaction will takes place because iron metal is more reactive metal than copper metal. So, iron metal can displaces copper metal from its solution.

The chemical reaction will be:

[tex]Fe(s)+Cu(NO_3)_2(aq)\rightarrow Fe(NO_3)_2(aq)+Cu(s)[/tex]

Part B :

This reaction will not takes place because copper metal is less reactive metal than iron metal. So, copper metal can displaces iron metal from its solution.

The chemical reaction will be:

[tex]Fe(s)+Cu(NO_3)_2(aq)\rightarrow \text{No reaction}[/tex]

Explanation:

A strip of solid palladium metal is put into a beaker of nicl2

Palladium (Pd) + Nickel Chloride (NiCl2)

To answer this question properly you must refer to the reactivity series.

The activity series is a chart of metals listed in order of declining relative reactivity. The top metals are more reactive than the metals on the bottom.

In this series, Nickel is higher than Palladium. This means that if a Palladium strip is placed into a solution of a Ni salt, then a reaction will not take place, nothing would happen.

Because Pd is lower than Ni in the reactivity series.

There is no reaction so no equation.

Sn(s) + MgBr2(aq) --> SnBr2(aq) + Mg(s)

Explanation:

Decide whether a chemical reaction happens in either of the following situations.

- A reaction happens. The type of this reaction is the single replacement reaction.

If a reaction does happen, write the chemical equation for it.

Sn(s) + MgBr2(aq) --> SnBr2(aq) + Mg(s)

Web results
KewpieUSA: Mayonnaise - Dressing & Marinade | Kewpie Shop
kewpie from www.kewpieshop.com
Kewpie is Japan's most trusted mayonnaise

The question is incomplete, the complete question is;

Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation for it. Be sure your chemical equation is balanced and has physical state symbols. situation chemical reaction? chemical equation A strip of solid lead metal is put into a beaker of 0.043M Fe(NO3)2 solution. yes no A strip of solid iron metal is put into a beaker of 0.044M Pb(NO3)2 solution.

No

Yes

Explanation:

A single replacement reaction occurs when a metal that is higher in the electrochemical series is placed in a solution of the salt of a metal which is lower than it in the electrochemical series.

For instance, when a strip of solid iron metal is put into a beaker of 0.044M Pb(NO3)2 solution, a reaction occurs as follows;

Fe(s) + Pb(NO3)2(aq) > Fe(NO3)2(aq) + Pb(s)

However, when a strip of solid lead metal is put into a beaker of 0.043M Fe(NO3)2 solution no reaction occurs because lead is lower than iron in the electrochemical series hence it can not displace iron from an aqueous solution of its salt.

Answer : option c) heat is released during the process.explanation :

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

The answer is the first option just took the test