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Aliun [14]
3 years ago
13

Giải gấp giúp em câu này với ạ:

Chemistry
1 answer:
padilas [110]3 years ago
6 0

Explanation:

what do you have written I can't understand one word right a properly

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For at least the last century Florida has experienced a hurricane season every year, from June to November. Which of the followi
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Florida's Global Pattern.

Explanation:

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What is the relationship between mass and gravity
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2 years ago
a magnet has a north and south pole labeled in the drawing student A thinks that if you cut a magnet in half each ew parts will
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Answer:

The student is Incorrect

Explanation:

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Please mark me as brainliest

<h3><u>Thank you </u>:)</h3>

8 0
2 years ago
How many particles are in 47.7 g of Magnesium? (Round the average
Lynna [10]

Answer:

1.18 × 10²⁴ particles Mg

General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
  • Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Explanation:

<u>Step 1: Define</u>

47.7 g Mg

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

Avogadro's Number

Molar Mass of Mg - 24.31 g/mol

<u>Step 3: Convert</u>

<u />47.7 \ g \ Mg(\frac{1 \ mol \ Mg}{24.31 \ g \ Mg} )(\frac{6.022 \cdot 10^{23} \ particles \ Mg}{1 \ mol \ Mg} ) = 1.18161 × 10²⁴ particles Mg

<u>Step 4: Check</u>

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

1.18161 × 10²⁴ particles Mg ≈ 1.18 × 10²⁴ particles Mg

3 0
2 years ago
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