Answered

Explore Westonci.ca, the top Q&A platform where your questions are answered by professionals and enthusiasts alike. Connect with a community of experts ready to provide precise solutions to your questions quickly and accurately. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

The table shows the percentages of hydrocarbons in a sample of crude oil.

| Hydrocarbons | Percentage |
|--------------|-------------|
| Paraffins | 30% |
| Naphthenes | 49% |
| Aromatics | 15% |
| Asphaltics | 6% |

Based on the given information, what is the best classification for this sample of crude oil?

A. An element
B. A pure compound
C. A pure substance
D. A mixture

Sagot :

GinnyAnswer
To determine the best classification for the given sample of crude oil, we first need to analyze the provided percentages of different hydrocarbons.

The table shows the following hydrocarbons in the sample:
- Paraffins: 30%
- Naphthenes: 49%
- Aromatics: 15%
- Asphaltics: 6.0%

Let's break down each classification:

1. Element: An element is a pure chemical substance consisting of one type of atom. Since the sample contains multiple substances (different hydrocarbons), it cannot be classified as an element.

2. Pure Compound: A pure compound consists of molecules that are all identical, each composed of two or more atoms in a fixed proportion. Since the given sample contains multiple types of hydrocarbons in varying percentages, it is not a pure compound.

3. Pure Substance: A pure substance is either an element or a compound that has consistent and uniform properties throughout. As we have multiple hydrocarbons with varying properties and percentages, it cannot be a pure substance.

4. Mixture: A mixture contains two or more substances that are physically combined in varying ratios and can be separated by physical means. The hydrocarbons in the sample are mixed in different proportions, thus fitting the definition of a mixture.

Having considered the definitions and the given percentages of different hydrocarbons in the sample, the most appropriate classification for this sample of crude oil is:

A mixture.
We hope our answers were helpful. Return anytime for more information and answers to any other questions you may have. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.