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Dvinal [7]
3 years ago
14

Stoichiometry is based on the _______________________________

Chemistry
1 answer:
SCORPION-xisa [38]3 years ago
4 0

Answer:

Explanation:

Stoichiometry is based on the <u>conservation of mass</u>.

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According to reference table adv-10, which reaction will take place spontaneously?
olga_2 [115]
Missing table!! write the elements with the first letter of the symbol with Upper Caps letters!!!

http://www.chemeddl.org/services/moodle/media/QBank/GenChem/Tables/EStandardTable.htm

<span>Ni2+ +Pb(s) → Ni(s) + Pb2+
</span>The potential of the oxidation of Pb(s) --> Pb2+(aq) is 0.126 V 
The potential of the reduction go Ni2+(aq) --> Ni(s) is -0.25 V 

<span>Add the two together and the potential for the reaction is -0.124 V (NO SPONTANEOUS THE SIGN IS NEGATIVE)

</span><span>au3+ + al(s) → au(s) + al3+Au3+(aq) ->   Au(s)  +1.5 VAl -> Al3+  +1.66VV= 3.16 (SPONTANEOUS THE SIGN OF THE PONTENTIAL IS POSITIVE)</span><span>Sr2+ + Sn(s) → Sr(s) + Sn2+
</span>
Sr2+(aq) + 2 e–  <span>  Sr(s)  V= -2.89V
</span>Sn -> Sn2+ V= 0.14 V
V= -2.75 V (no spontaneous)

<span>Fe2+ + Cu(s) → Fe(s) + Cu2+
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V= - 0.777V (no spontaneous)
5 0
3 years ago
Use the scenario to answer the following question. Four scientists observed an area of land that had been cleared of all trees a
Blizzard [7]

Answer:

b

Explanation:t not sure

3 0
3 years ago
Read 2 more answers
What is a change in a substance that does not involve the identity of the substance
GenaCL600 [577]

The answer to this would be a physical change. Physical changes are changes that affect the form of a chemical substance, but not the chemical composition itself. Hope this helped!


6 0
3 years ago
Read 2 more answers
1. Ionization energy is the energy needed to remove an electron from an atom. We can use the periodic table to predict ionizatio
just olya [345]

Ionization energy increases from left to right because the left wants to lose elctrons and the right wants to gain electron

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It should be 3p3. the p level can hold 6 electrons

Rubidium group 1, 1 valence electrons very reactive

Mg2,2 very reactive

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6 0
3 years ago
I NEED HELP PLEASE, THANKS! :)
Elan Coil [88]

Answer:

Hi there!

Based on my own words, the electron cloud is a shell surrounding the nucleus that only consists of electrons.

6 0
3 years ago
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