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pochemuha
3 years ago
5

1. Write the electron configuration for Al (aluminum). Then, write the noble gas configuration. Finally, draw

Chemistry
1 answer:
Zanzabum3 years ago
3 0

Answer:

[Ne] 3s² 3p¹

1s2 2s2 2p6 3s2 3p1

Explanation:

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1. Which one of the following best describe sublimation?
deff fn [24]
D. Sublimation is a solid turning directly into a gas
5 0
3 years ago
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Write and balance the equation for the combination of ammonia gas with solid copper (II) oxide to produce copper metal, nitrogen
Katena32 [7]

Explanation :

The balanced chemical reaction will be,

3CuO(s)+2NH_3(g)\rightarrow 3Cu(s)+N_2(g)+3H_2O(l)

By the stiochiometry, 3 moles of solid copper(II)oxide react with 2 moles of ammonia gas to give 3 moles of copper metal, 1 mole of nitrogen gas and 3 moles of liquid water.

The states of matter of each elements and compound is,

Copper(II)oxide is in solid state

Ammonia is in gaseous state

Copper metal is in solid state

Nitrogen is in gaseous state

Water is in liquid state

7 0
3 years ago
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Consider a 175.7 g sample of the compound manganese(IV) perchlorate.
kramer

Answer:

6.21 moles O

Explanation:

To find the moles of oxygen, you need to (1) convert grams Mn(ClO₄)₄ to moles Mn(ClO₄)₄ (via molar mass) and then (2) convert moles Mn(ClO₄)₄ to moles O (via mole-to-mole ratio from formula subscripts). It is important to arrange the conversions/ratios in a way that allows for the cancellation of units.

Molar Mass (Mn(ClO₄)₄): 452.74 g/mol

1 Mn(ClO₄)₄ = 1 Mn and 4 Cl and 16 O

175.7 g Mn(ClO₄)₄           1 mole                   16 moles O
---------------------------  x  -------------------  x  ---------------------------  =  6.21 moles O
                                       452.74 g            1 mole Mn(ClO₄)₄

6 0
2 years ago
In the reaction 2H2O (l) + 2Cl– (aq) → H2 (g) + Cl2 (g) + 2OH– (aq), which substance is oxidized?
Vlad1618 [11]

Answer:

c

Explanation:

because i asked alexa and it told me hehr

4 0
3 years ago
Using this formula, to find K, what does E0 represent?. . K=10^(nE0/0.0592)
Nadusha1986 [10]
E0,correctly written as EE^{o}, is the <span> standard electrode potential of the cell. This is usually used in the subject, electrochemistry. This is used to measure the difference in potential between two half cells used in an electrochemical cell. The o above signifies that it is at its standard state. </span>
5 0
3 years ago
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