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VMariaS [17]
3 years ago
11

George knows that topography is continually being created and

Chemistry
1 answer:
TEA [102]3 years ago
8 0
Oh oh oh alrighty auto parts AOU
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Atoms of which element react spontaneously with mg2+ (aq)?
ehidna [41]
The complete answer contains the answer choices.


This is the complete question:


Atoms of which element react spontaneously with Mg2+(aq)? (1)chromium
(2)barium
(3)iron
(4)zinc


Answer: option 2. barium.


Explanation.


1) Mg ²⁺ (aq) is the aquous cation of the metal Mg.


2) Only a metal more reactive than Mg will be able to exchange with it the oxidation states.


3) Mg is an earth alkalyne metal (group 2 of the periodic table). The metals from this group are more reactive than the metals in the groups to its right: 3, 4, 5, 6, 7, ... Only the alkalyne metals (those in group 1) are more reactive than the earth alkalyne metals.


4) Of the list, barium is the only alkalyne metal, so it is more reactive than Mg and will be able to deliver 2 electrons to transform the cations Mg²⁺ into Mg while the very Ba will become Ba²⁺.


5) Chromium, iron and zinc are transition metals, so less metallic (reactive) than Mg.
3 0
3 years ago
Which equivalence factor should you use to convert from 3.48 x 1018 atoms of magnesium (Mg) to moles of magnesium? A (1 mol Mg/1
faltersainse [42]
1242.375Mg=1976Mg located
6 0
3 years ago
Help please
Mars2501 [29]

Answer:

electron cloud charge of manganese=-5

Explanation:

atomic number=number of elecron +neutron number

DATA

Neutron NO.=30

atomic NO.=25

e=?

A=e+n

25=e+30

e=25-30

e= -5

6 0
2 years ago
The heat of vaporization for water is 40.7 kJ/mol. How much heat energy must 150.0 g of water absorb to boil away completely? Us
ollegr [7]

Answer:

i picked b

Explanation:

but its based on your own opinion, good luck.

6 0
2 years ago
Energy is transferred
Andrei [34K]
True is the right oneee
6 0
2 years ago
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