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NeX [460]
3 years ago
13

A complex material that contains all the information needed to create an organism is _____​

Chemistry
1 answer:
Ghella [55]3 years ago
3 0
The answer to the question is Dna
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Type your answer in decimal form. Do not round.<br> 2/5 tons = pounds
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one US ton is 2000 lbs, thus 2/5 of that is just their product.

answer: 800 lbs
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What are the four main sources of fresh water on earth
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In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B. 2 A ⟶ 3 B How many molecules
Harman [31]

Answer:

There will be produced 1.71 moles of B which contain 1.03×10²⁴ molecules

Explanation:

The example reaction is:

2A → 3B

2 moles of A produce 3 moles of B

If we have the mass of A, we convert it to moles and then, we make the rule of three: 29.2 g / 25.6g/mol = 1.14 moles

Therefore 2 moles of A produce 3 moles of B

1.14 moles of A will produce (1.14 . 3) / 2 = 1.71 moles of B are produced

Now we can determine, the number of molecules

1 mol has NA molecules (6.02×10²³)

1.71 moles have (1.71 . NA) = 1.03×10²⁴ molecules

4 0
3 years ago
Which of these figures probably shows a sugar solution containing a small amount of sugar dissolved in water
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Answer:

The correct answer is Sugar has a greater solubility than sand.

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Freezing rain is the term given to the precipitation of the rain sustained at temperatures below freezing by the ambient air mass, which results in freezing on encountering with the surfaces. Freezing rain is formed completely of liquid droplets, unlike sleet, ice pellets, or hail.  

The freezing rain falls and solidifies on a wire fence as the rain is changing from a liquid to a solid state by withdrawing thermal energy, ultimately resulting in freezing.  


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