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NikAS [45]
3 years ago
9

What volume will 25.0g ammonia occupy at stp

Chemistry
1 answer:
Slav-nsk [51]3 years ago
3 0

Answer:

The volume of 25 g O2 at STP is ~18 L.

Explanation:

can you mark me brainliest pls :)

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Which of the following statements is false?
jeka94

Answer:

a is write

Explanation:

Why are all ionic compounds crystalline in structure?

Ionic compounds are generally hard, but brittle. ... The repulsive forces between like-charged ions cause the crystal to shatter. When an ionic crystal breaks, it tends to do so along smooth planes because of the regular arrangement of the ions.

6 0
3 years ago
How does activation energy affect a chemical reaction?
exis [7]

Answer:

Here you go.

Explanation:

The activation energy of a chemical reaction is closely related to its rate. Specifically, the higher the activation

5 0
3 years ago
And electro chemical cell has the following standard cell notation:
pochemuha

2Ag⁺(aq) + Mg(s)→ 2Ag(s) + Mg²⁺ (aq)

<h3>Further explanation</h3>

Given

Standard cell notation:

Mg(s) | Mg2+ (aq) || Ag+(aq)| Ag(s)

Required

a balanced redox reaction

Solution

At the cathode the reduction reaction occurs, the anode oxidation reaction occurs

In reaction:  

Ag⁺ + Mg → Ag + Mg²⁺  

half-reactions

  • at the cathode (reduction reaction)

Ag⁺ (aq) + e⁻ ---> Ag (s)  x2

2Ag⁺ (aq) + 2e⁻ ---> 2Ag (s)

  • at the anode (oxidation reaction)

Mg (s) → Mg²⁺ (aq) + 2e−

a balanced cell reaction

<em>2Ag⁺(aq) + Mg(s)→ 2Ag(s) + Mg²⁺ (aq) </em>

5 0
3 years ago
Read 2 more answers
Which element has a 4s sublevel with 2 electrons for its outermost electrons.
Papessa [141]

Answer:

Calcium

Explanation:

Hi!

So, the best way to solve this is with a period table with all of the sublevels labeled. (check below)

So the s sublevel starts at 1s which is Hydrogen. If you go down 4 rows, or periods, you get to sublevels 4s. As you should know, as you go across groups/columns, the valence electrons get higher. So the element that you are looking for has 2 valence electrons. So, the element you are looking for should be 4 down and 1 right of Hydrogen which is: Calcium

I hope I helped and have a wonderful evening!

3 0
3 years ago
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HELP NOW!
Lelu [443]

The answer is D. In the visible spectrum of light, ultraviolet light has the most energy while red has the least energy. Violet light has shorter wavelengths and higher frequency. This is converse to red light that has longer wavelengths but lower frequency.

3 0
3 years ago
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