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RUDIKE [14]
2 years ago
9

Please help like please

Chemistry
2 answers:
Bezzdna [24]2 years ago
8 0
Both items achieve a more stable configuration
klemol [59]2 years ago
4 0

Answer:

It is the third one

Explanation:

"Both atoms achieve a more stable configuration."

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NaOH(aq) + MgSO4(aq) →
Cerrena [4.2K]

Answer:

if balanced reaction then 2 NaOH + MgSO4 → Mg(OH)2 + Na2SO4

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3 years ago
An atom was observed with +3 charge, n = 38, and e = 28. What is the mass number of the atom?
Finger [1]

Answer: 66

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3 0
2 years ago
Which atom has only one pair of electrons in its outermost energy level?
inysia [295]

Answer:

i belive A, i cold be wrong tho, pls tell me if im right if you fully find out

ght. Explanation:

8 0
2 years ago
Polymerization is generally also considered a(n) _______ reaction.
bazaltina [42]
Ur ans is option d
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7 0
3 years ago
Read 2 more answers
Propane (c3h8) is burned in oxygen to produce carbon dioxide and water. the heat of combustion of propane is -2012 kj/mole. how
Olegator [25]
C_{3} H_{8} + 5 O_{2} ---\ \textgreater \  3CO_{2}  +4H_{2}O    (-2012 \frac{kJ}{mol} )


3 mol                10 mol


C_{3}H_{8} is /excess /reactant

because 3 mol propane require 15 mol oxygen (by reaction)

5 mol oxygen ---1 mol propane, so

10 mol oxygen ---2 mol propane

Only 2 mole propane will be burned,

so 

2012 ( kJ/mol)*2 mol =4024 KJ heat will be given off

Correct answer is number 4.



5 0
2 years ago
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