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kolezko [41]
3 years ago
14

When Luis burns wood in a campfire, the particles in the wood break down and energy is released. What type of energy does the wo

od contain before Luis burns it?
heat

electrical

chemical

light
Chemistry
1 answer:
matrenka [14]3 years ago
8 0

Answer:

chemical energy is stored in the wood before combustion.

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<h3>Answer:</h3>

3.01 × 10²⁵ molecules H₂O

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

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
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50.0 mol H₂O

<u>Step 2: Identify Conversions</u>

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<u>Step 3: Convert</u>

<u />\displaystyle 50.0 \ mol \ H_2O(\frac{6.022 \cdot 10^{23} \ molecules \ H_2O}{1 \ mol \ H_2O} ) = 3.011 × 10²⁵ molecules H₂O

<u>Step 4: Check</u>

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

3.011 × 10²⁵ molecules H₂O ≈ 3.01 × 10²⁵ molecules H₂O

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