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3 years ago

How many moles of oxygen gas (O2) are required to completely react with 10 moles of hydrogen gas (H2)?

Chemistry

1 answer:

Brums [2.3K]3 years ago

3 0

Answer:

5 moles of oxygen are required.

Explanation:

Given data:

Moles of O₂ required = ?

Moles of H₂ present = 10 mol

Solution:

Chemical equation:

O₂ + 2H₂ → 2H₂O

Now we will compare the moles of oxygen and hydrogen.

H₂ : O₂

2 : 1

10 : 1/2×10 = 5 mol

5 moles of oxygen are required.

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3 years ago

What is 10 times as many as 1 hundred is blank hundred or blank thousand ?

Rama09 [41]

10 times as many as 1 hundred is 10 hundred or 1 thousand.

This is the question of simple multiplications related to a place value system.

The given equation in unit form can be rewritten as:

10 × 1 × 100 = (X × 100) or (Y × 1000)

Arranging in two parts, we get,

10 × 1 × 100 = X × 100 ........(1)

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Now, calculating the value of X and Y,

From equation (1), we get,

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or, 1000 = Y × 1000

or, Y = 1

Hence, 10 times as many as 1 hundred is 1 thousand.

Therefore, 10 times as many as 1 hundred is 10 hundred or 1 thousand.

To learn more about hundreds, thousands, and place values, visit: brainly.com/question/17785584

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1 year ago