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DaniilM [7]
3 years ago
11

When aluminum oxidizes in air it forms aluminum oxide (al2o3) if a 51 sheet?

Chemistry
1 answer:
Ede4ka [16]3 years ago
8 0
<span>Answer: mol Al2O3 x 1 mol Al/ 2 mol Al2O3= .25 mol Al The balanced equation tells us that it takes 4 moles of Al to produce 2 moles of Al2O3. 0.50 moles Al2O3 x (4 moles Al / 2 moles Al2O3) = 1.0 moles Al 1.0 moles Al x (27.0 g Al / 1 mole Al) = 27.0 g Al</span>
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(a) Coulomb's law describes the magnitude of the _____________ between two charged particles.
ICE Princess25 [194]

Answer:

Coulomb's law describes the magnitude of the force between two charged particles.

Explanation:

Coulomb's Law states that:

The magnitude of force between two charged particles is directly proportional to the product of the charges of the two particles and inversely proportional to the square of the distance between the two particles.

The force between two likely charged particles is positive.

Likely charged particles repel each other.

The force between two oppositely charged particles is negative.

Unlikely charged particles attract each other.

5 0
3 years ago
Plant cells and animal cells were observed under a microscope. The characteristics of two cells are listed below.
IRINA_888 [86]

Answer:

The answer is B

Explanation:

ITs B

4 0
3 years ago
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Write a balanced equation for the dissolution of sodium carbonate (Na2CO3) in water. Find the number of moles of Na+ produced wh
DochEvi [55]

Answer:

in the presence of water H2O

Na2CO3 (S) --> 2Na+ (aq)+ (CO3)2-(aq)

One mole of sodium carbonate produces two moles of Na+ ions

Therefore 0.207 moles produces 0.414 moles of Na+ ions

= 0.414 moles of Na+ ions

Explanation:

In water

Na2CO3 --> 2Na+ (aq)+ (CO3)2-(aq)

In a limited reaction, the carbonate ion reacts with the water molecules as follows

(CO3)2-(aq) + H2O←→HCO3-(aq) + OH-(aq)

sodium carbonate or soda ash dissolves in water to give 2 sodium cations and one carbonate anion

4 0
2 years ago
Porque sirve el teorema de pitagora​
denis23 [38]

El teorema de Pitágoras se generaliza a espacios de dimensiones superiores. Algunas de las generalizaciones están lejos de ser obvias. El teorema de Pitágoras sirve como base de la fórmula de distancia euclidiana.

Espero que esto ayude, que tengan un día bendecido y maravilloso, ¡así como uno seguro! :-)

-Cutiepatutie

4 0
3 years ago
based on the article what are some of the advantages that can be given by radio frequency and microwaves​
bonufazy [111]

Answer:

higher data rates are

Explanation:

transmitted

as the bandwidth

is more

more antenna gain is possible

6 0
2 years ago
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