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3 years ago

What is H2O In chemistry

Chemistry

2 answers:

Serggg [28]3 years ago

5 0

H2O, also known as water, stands for two hydrogen atoms and one oxygen atom. Hope this helps! ^^

emmainna [20.7K]3 years ago

5 0

H2O also known as water

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A hydrogen fuel cell is an electrochemical reactor in which oxygen and hydrogen gas are reacted to produce energy. Rather than c

Contact [7]

Answer:

(d) Why is the fuel cell in Question (c) described as an alkaline fuel cell? (e) Another type of fuel cell uses methanol instead of hydrogen.

Explanation:

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2 years ago

Which of the following is a valid mole ratio from the balanced equation 2Fe2O3+3C yield 4Fe+3CO2

riadik2000 [5.3K]

Answer :

The balanced chemical reaction is,

$2Fe_2O_3+3C\rightarrow 4Fe+3CO_2$

From this balanced chemical reaction, we conclude that

2 moles of iron oxide react with the 3 moles of carbon to give 4 moles of iron and 3 moles of carbon dioxide.

Therefore, the valid mole ratio from the balanced chemical reaction is,

$Fe_2O_3:C:Fe:CO_2=2:3:4:3$

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2 years ago

What causes the different colors of layers in a sedimentary rock? A. the cooling process of the magma B. the weather in the area

OLga [1]

Different colors of sedimentary rock are determined by the environment where they are located. For example, red rocks form where oxygen is present. Darker sediments form when the environment is oxygen poor.

So, basically, the weather and surroundings of the rock, so B.

4 0

2 years ago

A rock was found on the side of the road. The rock was very crumbly, it had layers, and contained

Mazyrski [523]

Answer:

Explanation:

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2 years ago

How to distinguish between ethanol and 2 -methyl-2-propanol

Zolol [24]

Answer:

There are many reagents.

1. Use acidified potassium permanganate solution

2. Use acidified potassium dichromate solution

3. Fehling solution.

4. Silver/ oxygen at 500°C

5. Copper/ oxygen at 300°C

6. Lucas reagent ( anhydrous zinc and conc. hydrochloric acid)

Explanation:

Observations:

[with acidified potassium permanganate solution]

» Ethanol : The purple solution turns colourless.

» 2-methyl-2-propanol : no observable change.

[with acidified potassium dichromate solution]

» Ethanol : orange solution turns green

» 2-methyl-2-propanol : no observable change.

[Fehling solution]

» Ethanol : a white precipitate is formed

» 2-methyl-2-propanol : no observable change

3 0

2 years ago