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Naddika [18.5K]
2 years ago
7

3 Cu + 8HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O

Chemistry
1 answer:
Zepler [3.9K]2 years ago
7 0

Answer:

A shape has 2 pairs of parallel sides and no right angles. What shape is it?

Trapezoid

Parallelogram

Square

RectangleA shape has 2 pairs of parallel sides and no right angles. What shape is it?

Trapezoid

Parallelogram

Square

Rectangle

Explanation:

A shape has 2 pairs of parallel sides and no right angles. What shape is it?

Trapezoid

Parallelogram

Square

Rectangle

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Calculate the mass percent of 0.485 g of H, which reacts with oxygen to form 2.32 g H2O
Nataly [62]

Answer:

Mass % of hydrogen = 20.9 %

Explanation:

Given data:

Mass of hydrogen = 0.485 g

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Mass percent of hydrogen = ?

Solution:

Mass % of hydrogen = mass of hydrogen / mass of water × 100

Mass % of hydrogen = 0.485 g/ 2.32 g × 100

Mass % of hydrogen = 0.209  × 100

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