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Ymorist [56]
4 years ago
11

What is the chemical formula for nickel (III) oxide?

Chemistry
1 answer:
HACTEHA [7]4 years ago
4 0

I think it is Ni2O3

                   

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What is the energy change that will occur when 25.5 grams of oxygen gas (O2) react with excess methane (CH4) according to the re
AysviL [449]
Amount of CH4 is excess, so no need to worry about it 
<span>but the limiting factor is the Oxygen </span>

<span>according to stranded equation, </span>

<span>CH4 + 2 O2 --> CO2 + 2 H2O ΔH = -889 kJ/mol </span>


<span>just by taking proportions </span>

<span>(-889 kJ/mol) / 2 x 0.8 mol = - 355.6 kJ </span>

<span>so i think the answer is (a)</span>
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3 years ago
An acid and base react to form a salt and water in a(n __________ reaction.
Nataly [62]
It is a neutralization reaction.
3 0
4 years ago
Sarah used 2.5 cups of cheese in a dish that serves 10 people. Arun used 1.6 cups of cheese in a dish that serves 8 people. How
navik [9.2K]

Answer:

0.05

Explanation:

We find the rate of the chess

Sarah is 2.5/10

Arun is 1.6/8

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0.25 for Sarah

0.20 for Arun

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0.25 - 0.20, we then get 0.05

Sarah has 0.05 more cheese in one serving than Arun

3 0
3 years ago
If 20.00 moles of KClO3 react, how many molecules of O2 will form?
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Answer:

Explanation:

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2 moles of potassium chlorate gives 3 moles of oxygen gas

20 moles of potassium chlorate will give 30  moles of oxygen gas .

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= 180.6 x 10²³ molecules of O₂ .

6 0
3 years ago
What are some chemical properties of Nitrogen?
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5 0
4 years ago
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