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serious [3.7K]
3 years ago
11

Which formula correctly represents the composition of iron (III) oxide?

Chemistry
2 answers:
lisov135 [29]3 years ago
8 0
Iron (III) oxide has a chemical formula of (2) Fe2O3.

Hope this helps~
shutvik [7]3 years ago
4 0
2) Fe2O3 because Oxygen has has a negative 2 charge and Iron has a -3 charge so u need 2 iron and 3 oxygen
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A bottle contains 158.1 grams of lead (II) sulfate (PbSO4), used for car batteries. How many moles does it contain?
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What element is oxidized in the chemical reaction 2Mn(NO3)2 + 5NaBiO3 + 16HNO3 → 2HMnO4 + 5Bi(NO3)3 + 5NaNO3 + 7H2O
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2 years ago
Identify the chemical symbols corresponding to each element. drag the appropriate labels to their respective targets.
Shalnov [3]

The name and chemical symbol of the elements are

  • Carbon = C
  • Lead = Pb
  • Antimony = Sb
  • Sodium = Na
  • Aluminum = Al

<h3>What are chemical symbols?</h3>

Chemical symbols are which are used to represent the elements in the periodic table.

The chemical symbol assigned to elements are usually an abbreviation of the name of the element or the Latin form of the name.

The name and symbol of the given elements are as follows:

  • Carbon = C
  • Lead = Pb
  • Antimony = Sb
  • Sodium = Na
  • Aluminum = Al

The chemical symbols are used frequently in writing the formula of compound formed from the elements. For example, the compound sodium aluminate which contains sodium, aluminum and oxygen is written in a simplified form as: NaAlO₂.

Learn more about chemical symbols at: brainly.com/question/118939

#SPJ1

Note that the complete question is given below:

Part A

Identify the chemical symbols corresponding to each element Drag the appropriate labels to their respective targets.

View Available Hint(s)

Element

Carbon

Lead

Antimony

Sodium

Aluminum

8 0
1 year ago
3rd law of thermodynamics..<br><br> 2 Different Examples((Thnks))
VLD [36.1K]

Answer:

See explanation

Explanation:

The third law of thermodynamics states that "the entropy of a perfect crystal of a pure substance approaches zero as the temperature approaches zero" (Wikipedia).

One example of the third law of thermodynamics has to do with steam. Steam is gaseous water. Since it is a gas, its molecules are free to move around therefore its entropy is high. When the temperature of the steam is decreased below 100 degrees, the molecules of steam loose energy and turn into liquid water and do not move as freely as they did in the gaseous state. If the temperature is further decreased to yield ice at zero degrees, the molecules of water are "frozen" in their positions and the entropy of the system decreases to zero.

Also, the ions in ionic crystal solids move around when the substance is in solution or in molten state hence the substance conducts electricity. When the ionic substance is in solid state, the ions do not move about and the entropy of the solid system tends towards zero.

5 0
2 years ago
Ryan wants to identify an element. Which piece of information would best help Ryan identify the element?
Keith_Richards [23]
Atomic number, or symbol.
4 0
3 years ago
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