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sammy [17]
3 years ago
5

In a reaction, a gas being produced is

Chemistry
1 answer:
lukranit [14]3 years ago
8 0
A solid product called a may form when chemicals in two liquids react, as shown in the photograph below. ... The photo- graph below shows an example in which carbon dioxide gas<span> is </span>produced<span> by a chemical </span>reaction. Temperature Change Most chemicalreactions<span> involve a temperature. change.</span>
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One characteristic of a lagoon is often:
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One characteristic of a lagoon is often: concentrated salt.

4 0
4 years ago
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Suppose now that you wanted to determine the density of a small crystal to confirm that it is boron. From the literature, you kn
Phantasy [73]

Answer:

the volume of  CHCI3 = 7.87 ml

the volume of  CHBr3 = 12.13 ml

Explanation:

From the given information:

We all know that 1 g/cm^3 = 1 g/ml

The density of boron = 2.34 g/ml

The Volume of the liquid mixture  = 20 ml

Recall that:

Density = mass/volume

Mass = Density × Volume

Mass = 2.34 g/ml × 20 ml

Mass = 46.8 g

Suppose the volume of  CHCI3 be Y and the Volume of CHBr3 be 20 - Y

Then :

Y (1.492) + 20-Y(2.890) = 46.8

1.492Y + 57.8 - 2.890Y = 46.8

- 1.398 Y = -11

Y = -11/ - 1.398

Y = 7.87 ml

Therefore, the volume of CHCI3  7.87 ml

the volume of  CHBr3 = 20 - Y

= 20 - 7.87

= 12.13 ml

3 0
3 years ago
3. Explain why an aluminum ion (A13+) is smaller than a sodium ion (Na+).
IceJOKER [234]

Answer:

This question is hard :( I dont know im so sorry

Explanation:

8 0
2 years ago
In the important industrial process for producing ammonia (the Haber Process), the overall reaction is: N2(g) + 3H2(g) → 2NH3(g)
irakobra [83]
Answer is: <span>B) -50.2 kJ.

Balanced chemical reaction: </span>N₂(g) + 3H₂(g) → 2NH₃(g) ΔH = -<span>100.4 kJ.
This is exothermic reaction, because heat is released and energy is include as product of chemical reaction.
Make proportion, two moles of ammonia released 100.4 kJ of heat, then one mole of ammonia released:
2 mol(NH</span>₃) : (-100.4 kJ) = 1 mol : ΔH.
ΔH = -50.2 kJ; <span>heat released per mole of NH</span>₃.
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4 years ago
Hydrocarbons are compounds that are composed of carbon and hydrogen. Which statement does the law of definite proportions suppor
babunello [35]
<span>In chemistry, the law of definite proportions, sometimes called Proust's law or the law of definite composition, or law of constant composition states that a given chemical compound always contains its component elements in fixed ratio and does not depend on its source and method of preparation. An equivalent statement is the law of constant composition, which states that all samples of a given chemical compound have the same elemental composition by mass.</span>
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