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vodka [1.7K]
3 years ago
13

6. One sample has a chemical composition with a ratio of two iron atoms to three oxygen atoms. Another sample has a chemical com

position with a ratio of three iron atoms to four oxygen atoms. They contain the same elements: Are they the same mineral?
Geography
1 answer:
Svetlanka [38]3 years ago
8 0

Answer: They are not.

Explanation:

When it comes to molecular bonding, a single additional atom can change the characteristics of the compound. This is why Carbon Dioxide is different from Carbon Monoxide even though they both contain only Carbon and Oxygen atoms albeit in different quantities.

In this scenario the compounds described are Hematite which has two iron atoms to three oxygen atoms and Magnetite which has three iron atoms to four oxygen atoms. The presence of the different number of the same atoms made these compounds different.

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An elevator building code requires at least 2.3 square feet per person. The depth of an elevator box is 7 feet. How wide must th
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Answer:

x = 4.9285 ft

Explanation:

q = 2.3 ft²/person

y = 7 ft

n = 15 persons

We can apply the formula

A = x*y

or

A = q*n = (2.3 ft²/person)*(15 persons)

⇒  A = 34.5 ft²

then we have

A = x*y  ⇒  34.5 ft² = x* 7 ft

⇒ x = 34.5 ft² / 7 ft

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Write a paragraph about Natural Recourses of Egypt.
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Resources and power

Compared with the physical size of the country and the level of its population, Egypt has scanty mineral resources. The search for petroleum began earlier in Egypt than elsewhere in the Middle East, and production on a small scale began as early as 1908, but it was not until the mid-1970s that significant results were achieved, notably in the Gulf of Suez and portions of the Western Desert. By the early 1980s Egypt had become an important oil producer, although total production was relatively small by Middle Eastern standards.

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In the process of searching for oil, some significant natural gas deposits have been located, including substantial deposits in the delta and in the Western Desert, as well as offshore under the Mediterranean Sea. Wells have been established in the Abū Qīr area, northeast of Alexandria. A joint Egyptian-Italian gas discovery was made in the north delta near Abū Māḍī in 1970; this was developed partly to supply a fertilizer plant and partly to fuel the industrial centres in the north and northwest delta. In 1974 Abū Māḍī became the first Egyptian gas field to begin production. Other natural gas fields are located in the Western Desert, the delta, the Mediterranean shelf, and the Gulf of Suez, and by the early 21st century natural gas production had begun to rival that of oil, both as a source for domestic consumption and as a commodity for export.

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<em>Hope it is helpful for you !!!</em>

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