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Annette [7]
1 year ago
13

What type of chemical reaction is the reaction below?Fe2O3 + 3 Mg --> 2 Fe + 3 MgO

Chemistry
1 answer:
gogolik [260]1 year ago
5 0

Answer:

Replacement reaction or Single displacement reaction

Explanation:

Here, we want to know the kind of chemical reaction shown

As we can see here, the magnesium atom displaced the iron atom from its oxide

This is due to the fact that magnesium has a higher position in the elctrochemical series

This kind of reaction is called a replacement reaction or a single displacement reaction

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Does entropy increase or decrease in the following processes?
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Which factors cause a rising tide? A. The moon's gravity and Earth's rotation B. Density differences due to salinity and tempera
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How much heat is required to raise the temperature of 225 grams of ice from -26.8 °C to steam at 133 °C ?
lara [203]
<h3>Answer:</h3>

150000 J

<h3>General Formulas and Concepts:</h3>

<u>Chemistry</u>

<u>Thermodynamics</u>

Specific Heat Formula: q = mcΔT

  • <em>q</em> is heat (in J)
  • <em>m</em> is mass (in g)
  • <em>c</em> is specific heat (in J/g °C)
  • ΔT is change in temperature (in °C or K)

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right
<h3>Explanation:</h3>

<u>Step 1: Define</u>

<em>Identify variables</em>

[Given] <em>m</em> = 225 g

[Given] <em>c</em> = 4.184 J/g °C

[Given] ΔT = 133 °C - -26.8 °C = 159.8 °C

[Solve] <em>q</em>

<u>Step 2: Solve for </u><em><u>q</u></em>

  1. Substitute in variables [Specific Heat Formula]:                                          q = (225 g)(4.184 J/g °C)(159.8 °C)
  2. Multiply:                                                                                                           q = (941.4 J/°C)(159.8 °C)
  3. Multiply:                                                                                                           q = 150436 J

<u>Step 3: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

150436 J ≈ 150000 J

Topic: AP Chemistry

Unit: Thermodynamics

Book: Pearson AP Chemistry

5 0
3 years ago
Moving force of air flows from areas of high pressure to areas of low pressure true or false
Andru [333]
Air does move from high to low pressure so true
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3 years ago
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