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Step2247 [10]
3 years ago
14

Describe a simple experiment that can be perfomed in tha laboratory to demonstrate the formation of iron3chloride from iron fill

ings
Chemistry
1 answer:
dsp733 years ago
6 0

Answer:

laboratory use the organic substances dissolve in water methanol or ethanol then Sinha to rise iron chloride solution is added a transient permanent coloration usually purple green or blue indicate the presence of a funnel or an hall

Explanation:

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FIRST TO ANSWER !!CORRECTLY!! GETS BRAINLIEST! :D
trapecia [35]

Answer:

dim and bright

is the answer

4 0
3 years ago
A sample of gas at 310 Kelvin and 1.2 atmospheres has a density of 2.78 g/L. What is the molar mass of this gas?
Troyanec [42]
Ideal gas law PV = nRT    or  PM = dRt ( M is molecular mass of gas ) and d is gas density 
where m/ M    ( m is mass of gas sample ) 

m = dRT / P  ( 2.78 g/L )   ( 0.082 L atm/ K mole )( 310K )  /  1.2 atm  =
58.9 g/mol

gas must be butane ( C4H10) has molecular mass = 58.9 g/mol
5 0
4 years ago
11) What is the volume of 4.92 grams of hydrogen gas at STP? (Show the work using dimensional analysis)
lorasvet [3.4K]

Answer:

The volume of 4.92 grams of hydrogen gas at STP is 9.105 litter.

Explanation:

We know that, the molecular weight of hydrogen gas (H_{2} ) = 1\times 2 = 2.

Moles of hydrogen gas = \frac{weight}{molecular weight}  = \frac{4.92}{2} = 2.46 moles.

At STP, 1 mole of hydrogen gas = occupies 22.4 litter

    So, 2.46 mole of hydrogen gas = occupies \frac{22.4}{2.46} = 9.105 litter.

Hence, the volume of 2.46 grams of hydrogen gas at STP is 9.105 litter.

4 0
3 years ago
What are the four basic substainses that make up a cell
vampirchik [111]

Answer: <u>Carbohydrates, proteins, lipids, and nucleic acids. </u>

Explanation: The main four basic substances are carbohydrates (elements carbon (C), hydrogen (H), and oxygen (O), lipids, proteins, and nucleic acids. Which all happen to be organic compounds as well.

Hope this helps! :)

3 0
3 years ago
Four modes of sediment transport are:
netineya [11]
Here is 5


Dissolved Load - elements dissolved in solution

Suspended Load - very fine grained sediment such as clay and silt carried in suspension. The size grains that can be carried in suspension are dependent on the current velocity

Wash Load - a subset of the suspension load, extremely small particles (clay) that will remain in suspension independent of turbulence in the river

Saltation Load - particles that are temporarily carried in suspension but move by bouncing along the bottom
 
<span>Bed Load - sediment that moves by rolling or sliding along the bottom. These are generally the coarser grained sediments such as sand and gravel.</span>
5 0
3 years ago
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