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algol [13]
3 years ago
15

What is the symbol for the element with the atomic number 8

Chemistry
2 answers:
Aloiza [94]3 years ago
6 0

Answer: O

Explanation: oxygen

Elenna [48]3 years ago
3 0
It would be oxygen from what I believe
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Cl2 + AlBr3 → AlCl3 + Br2How many grams of Cl2 are needed to produce 19.03g of AlCl3?
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Answer:

14.89 g

Explanation:

Please see the step-by-step solution in the picture attached below.

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17 points Pls helpppppopppp
pentagon [3]

Answer:

Lipids

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8 0
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- Which of the following is an example of physical change?
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B as the glass just changes form as it shattered but the chemical composition is same as it was before
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3 years ago
2Al + 6HCl → 2AlCl3 + 3H2<br> If 85.0 grams of HCl react, how many moles of H2 are produced?
Murrr4er [49]

Answer:

1.17 mol

Explanation:

Step 1: Write the balanced equation

2 Al + 6 HCl → 2 AlCl₃ + 3 H₂

Step 2: Calculate the moles corresponding to 85.0 g of HCl

The molar mass of HCl is 36.46 g/mol.

85.0 g × 1 mol/36.46 g = 2.33 mol

Step 3: Calculate the number of moles of H₂ produced from 2.33 moles of HCl

The molar ratio of HCl to H₂ is 6:3.

2.33 mol HCl × 3 mol H₂/6 mol H₂ = 1.17 mol H₂

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Need help don’t understand this??!
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