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Firdavs [7]
3 years ago
9

What type of reaction is the rusting of iron?

Chemistry
1 answer:
FrozenT [24]3 years ago
7 0

(a) single composition

Explanation:

Rusting of iron it happens when iron will react with oxygen to form iron (III) oxide.

4 Fe + 3 O₂ → 2 Fe₂O₃

This reaction is a single composition reaction because two elements will react to form a single substance.

Learn more about:

types of chemical reactions

brainly.com/question/665908

#learnwithBrainly

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She is flying in windless conditions along the equator what is the area c called
saw5 [17]
The area where she is flying in windless conditions along the equator is called doldrums. Doldrums is a windless zone at the equator caused by warm rising air. The zone experience bands of showers and storms due to the hot air that rises and cools. 
8 0
4 years ago
What are even covalent chlorides? Question D
liq [111]

Answer:

The chlorine atom (or atoms) is covalently bonded by a shared pair of electrons to the other element.

Explanation:

4 0
3 years ago
If I have 7.5 L of a gas in a piston at a pressure of 1.75 atm and compress the gas until its volume is 3.7 L, what will the new
Sergio [31]

Answer:

3.55atm

Explanation:

We will apply Boyle's law formula in solving this problem.

P1V1 = P2V2

And with values given in the question

P1=initial pressure of gas = 1.75atm

V1=initial volume of gas =7.5L

P2=final pressure of gas inside new piston in atm

V2=final volume of gas = 3.7L

We need to find the final pressure

From the equation, P1V1 = P2V2,

We make P2 subject

P2 = (P1V1) / V2

P2 = (1.75×7.5)/3.7

P2=3.55atm

Therefore, the new pressure inside the piston is 3.55atm

7 0
4 years ago
(d) What is the mass percentage of water in CdCl2.4H2O?​
Zielflug [23.3K]

The mass percentage of water (H₂O) in cadmium chloride tetra hydratesolution is equal to the 28.2%.

<h3>How do we calculate mass percentage?</h3>

Mass percentage of any substabce present in any solution will be calculated as:
Mass percent = (Mass of substance/Total mass of solution)×100%

According to the question,

Mass of water (H₂O) = 18.02 g/mol

Mass of solvent (CdCl₂.4H₂O) = 183.32 + 4(18.02) = 255.4 g/mol

On putting values, we get

Mass percent = (18.02 / 255.4) × 100% = 28.2%

Hence mass percent of water is 28.2%.

To know more about mass percent, visit the below link:

brainly.com/question/13896694

6 0
2 years ago
Read 2 more answers
4.
Mila [183]

Answer:

0.47m²

Explanation:

Given parameters:

Length = 9.025 x 10⁶m

Width  = 5.215 x 10⁻⁸m

Unknown:

Area of the rectangle  = ?

Solution:

Area is the derived from the product of the length and width of a body.

 Area  = length x width  = 9.025 x 10⁶m  x  5.215 x 10⁻⁸m

  Area  = 0.47m²

6 0
3 years ago
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