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3 years ago

What guidelines were used by Miller and Urey when they constructed their experiment?

Chemistry

1 answer:

tresset_1 [31]3 years ago

8 0

Guidelines used by Miller and Urey:

In 1952, Stanley Miller with the support of Harold Urey conducted the classic experiment investigating the original evolution of life from chemical substances. (abiologically)

Miller and Urey conducted experiments by setting up an apparatus trying to provide the proof that organic compounds can exist from inorganic compounds. His apparatus had conditions nearly similar to the time of life started and by the flow of electricity which had water $(H_2O)$ , methane $\left(\mathrm{CH}_{4}\right)$ , ammonia $\left(\mathrm{NH}_{3}\right)$ , and hydrogen $\left(\mathrm{H}_{2}\right)$ obtaining various organic molecules.

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kolezko [41]

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A) a government's website

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3 years ago

A 5.5 g sample of a substance contains only carbon and oxygen. Carbon makes up 35% of the mass of the substance. The rest is mad

Umnica [9.8K]

We have been given the condition that carbon makes up 35% of the mass of the substance and the rest is made up of oxygen. With this, it can be concluded that 65% of the substance is made up of oxygen. If we let x be the mass of oxygen in the substance, the operation that would best represent the scenario is,

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3 years ago

I know the paper is blurry but can anyone explain any of the questions from 76-80?

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3 years ago

A student creates a model that displays a cross-section of a metal wire wrapped in plastic insulation. Which statement best desc

artcher [175]

Cross-section of a metal wire wrapped in plastic insulation the metal wire is an element.

<h3>What is an element?</h3>

An element is a substance or material that cannot be affected by an external substance or cannot be broken down by any reaction.

Metal wire is serving as an element, it should not be easily broken or penetrated as an insulator.

Therefore, Cross-section of a metal wire wrapped in plastic insulation the metal wire is an element.

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3 years ago

How do you convert from grabs to moles of a substance

Lorico [155]

The correct question is as follows:

How do you convert from grams to moles of a substance

1. Divide by the molar mass

2. Subtract the molar mass

3. Add the molar mass

4. Multiple by the molar mass

Answer: In order to convert from grams to moles of a substance divide by the molar mass.

Explanation:

The number of moles of a substance is the mass of substance in grams divided by its molar mass.

The formula to calculate moles is as follows.

$Moles = \frac{mass}{molar mass}$

This means that grams are converted to moles when grams is divided by molar mass.

Thus, we can conclude that in order to convert from grams to moles of a substance divide by the molar mass.

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3 years ago