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sveta [45]
3 years ago
6

What element has the following electron configuration? 1s 22s 22p 63s 23p 64s 2

Chemistry
1 answer:
s2008m [1.1K]3 years ago
3 0

Answer:

answer is D

Explanation:

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___ Au₂S₃ + ___ H₂ → ___ Au + ___ H₂S
Natalija [7]

Answer:

2Au₂S₃ +  6H₂ → 4Au + 6H₂S

Explanation:

Balancing:

2Au₂S₃ +  6H₂ → 4Au + 6H₂S

6 0
3 years ago
The equation X + Y yields 
masha68 [24]
Most likely the equation yields a new compound XY. This is a synthesis reaction. <span>Synthesis reaction is a reaction where two or more substances combine to form a new compound. It is a reaction which releases energy in the form of heat and light. Therefore, it is an exothermic reaction.</span>
6 0
4 years ago
1 Copy and complete using the words below:
Aleks [24]

Answer:

The elements in__Group_ 0 of the Periodic Table are called the_noble__gases. They are generally __unreactive_. because they have a__full_outer shell of electrons. So they do not need to gain__lose_or share _electrons_ with other atoms.

5 0
4 years ago
The decomposition of kclo3 proceeds spontaneously when it is heated. do you think that the reverse reaction, the formation of kc
pishuonlain [190]

<span>The answer is No, it is not possible that the reverse reaction will occur at ordinary conditions. This is because the entropy of the KCl and the O2 are much largely negative than that of the KClO3. The entropy component of the Gibbs free energy assures that the Gibbs free energy for the reverse reaction is positive (Positive Gibbs means nonspontaneous reaction). </span>

7 0
4 years ago
What do the edifices from the hot water vent look like and what they are made of?​
netineya [11]

Answer:

Water heaters must have vent to the outside of the heater to remove exhaust air from the water heater, the vent go directly through it walls. It is likened to the vent in natural gas water heater which have a vent to the outside that remove by products of combustion and can also bring in air combustion.

The edifice from the hot water vent are made of metals or plastic materials depending on the venting systems.

3 0
4 years ago
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