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Dmitriy789 [7]
3 years ago
13

Which of the following gases was most likely present in Earth’s earliest atmosphere?

Chemistry
1 answer:
netineya [11]3 years ago
5 0
D.oxygen i’m almost certain this is the correct answer.
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Which of the following is not a common way for a lake to form?
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An INPUT of photosynthesis is ______________<br> A.Oxygen<br> B.Roots<br> C.Sunlight
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When excess dilute hydrochloric acid was added to sodium sulphite 960 of sulphuric (iv) oxide was produced. calculate the mass o
irakobra [83]

The mass of sodium sulfite that was used will be 1,890 grams.

<h3>Stoichiometric problems</h3>

First, the equation of the reaction:

NaSO_3 + 2HCl --- > NaCl_2 + H_2O + SO_2

The mole ratio of SO2 produced and sodium sulfite that reacted is 1:1.

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Equivalent mole of sodium sulfite that reacted = 15 moles

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More on stoichiometric problems can be found here: brainly.com/question/14465605

#SPJ1

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1 year ago
I want to write the answer down so please answer it step by step
olga55 [171]
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3 years ago
Sodium dodecanoate is soluble in water even though it contains a large hydrophobic segment. How does this molecule interact with
velikii [3]

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Sodium laurate, also known as sodium dodecanoate, is a soap. It is the salt of lauric acid. It is an amphiphilic organic molecule which is composed of a hydrophilic head (polar ) and a hydrophobic tail (non-polar fatty acid).

In a aqueous solution, it leads to the formation of a micelle. The hydrophilic head of the molecule interacts with the surrounding polar solvent molecules. Thereby, making the micelle soluble in the solution. Whereas, the hydrophobic tails present in the core of micelle, interacts with the non-polar oil particles.

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