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notsponge [240]
3 years ago
15

How many protons, neutrons, and electrons does Al^3+ have?

Chemistry
1 answer:
Ludmilka [50]3 years ago
5 0
Protons: 13
Electrons: 10
Neutrons: 14
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A sample of a gas in a 4L container at 300K has a pressure of 1 atm. If the
zavuch27 [327]

The final pressure of the gas in the container is 4 atm

From the question given above, the following data were obtained:

Initial volume (V₁) = 4 L

Initial temperature (T₁) = 300 K

Initial pressure (P₁) = 1 atm

Final temperature (T₂) = 600 K

Final volume (V₂) = 2 L

<h3>Final pressure (P₂) =?</h3>

  • Using the combine gas equation, we can obtain the final pressure of the gas as illustrated below:

\frac{P_{1} V_{1} }{T_{1}} = \frac{P_{2} V_{2}}{T_{2}}\\\\\frac{1 * 4}{300} = \frac{P_{2} * 2}{600} \\\\

Cross multiply

300 × 2 × P₂ = 4 × 600

600 × P₂ = 2400

Divide both side by 600

P_{2} = \frac{2400}{600} \\\\

<h3>P₂ = 4 atm</h3>

Therefore, the final pressure of gas is 4 atm.

Learn more: brainly.com/question/23558057

4 0
3 years ago
The following equation shows the equilibrium in an aqueous solution of ammonia: NH3(aq)+H2O(l)⇌NH4+(aq)+OH−(aq)NH3(aq)+H2O(l)⇌NH
yarga [219]

Answer:

c) H2O and OH−

Explanation:

Acids are the species which furnish hydrogen ions in the solution or is capable of forming bonds with electron pair species as they are electron deficient species.

When an acid donates a proton, it changes into a base which is known as its conjugate base.

Bases are the species which furnish hydroxide ions in the solution or is capable of forming bonds with electron deficient species as they are electron rich species. When a base accepts a proton, it changes into a acid which is known as its conjugate acid.

The acid and the base which is only differ by absence or presence of the proton are known as acid conjugate base pair.

Thus,  for the reaction,

NH_3+H_2O\rightleftharpoons Nh_4^++OH^-

The base is NH_3 and the conjugate acid of the base is NH_4^+.

Also, The base is OH^- and the conjugate acid of the base is H_2O.

<u>Correct option is :- c) H2O and OH−</u>

8 0
3 years ago
How many moles are in 38 grams of Argon? Round to 2 decimal places. Use "e" for exponents
yuradex [85]

Answer: 39.948

Explanation:

How many grams Argon in 1 mol? The answer is 39.948. We assume you are converting between grams Argon and mole. You can view more details on each measurement unit: molecular weight of Argon or mol The molecular formula for Argon is Ar.

3 0
3 years ago
People often think bonds store or hold energy. If that is true, should the energy be high or low when a bond forms?
marta [7]

Answer:

The energy should be high.

Explanation:

Bonds do store energy and release it depending if it's endothermic or exothermic. The energy should be low because when a bond forms (endothermic) it releases heat, which helps form bonds. Having a high energy means the bond is absorbing energy, which helps break bonds (endothermic). How this helps!

4 0
3 years ago
PLS HELP!!!
Aleksandr-060686 [28]

Answer:

Physical Change. Physical changes are changes in which no bonds are broken or formed. This means that the same types of compounds or elements that were there at the beginning of the change are there at the end of the change.

7 0
3 years ago
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