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valkas [14]
3 years ago
13

What is an ore? An object that has been recycled, an article of clothing that’s made from natural fiber, a rock that contains en

ough of a metal to be worthwhile to extract, and a fossil fuel that can be burned to generate electricity.

Chemistry
2 answers:
Juli2301 [7.4K]3 years ago
8 0

Answer:

cccccccc

Explanation:

got it right

STatiana [176]3 years ago
4 0

Answer:

C

Explanation:

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What molecules can be made using hydrogen, carbon, and nitrogen?​
Yuki888 [10]

Answer:

Ammonia

Explanation:

Ammonia is the simplest possible molecule made with nitrogen and hydrogen. Methane is the simplest possible molecule made of carbon and hydrogen. Methanol is like methane, but it also has one oxygen atom as well.

8 0
2 years ago
Mention any two uses of oxygen gas.​
Elodia [21]

Answer:

steel, plastics

<h3>Explanation:</h3>

Hope it helps!

3 0
3 years ago
For the following reaction, 22.0 grams of nitrogen monoxide are allowed to react with 5.80 grams of hydrogen gas . nitrogen mono
mash [69]

NO is the limiting reagent and 4.34 g is the amount of the excess reagent that remains after the reaction is complete

<h3>What is a limiting reagent?</h3>

The reactant that is entirely used up in a reaction is called as limiting reagent.

The reaction:

2NO(g) +2H_2(g) → N_2 +2H_2O

Moles of nitrogen monoxide

Molecular weight: M_(_N_O_)=30g/mol

n_(_N_O_) =\frac{mass}{molar \;mass}

n_(_N_O_) =\frac{22.0}{30g/mol}

n_(_N_O_) = 0.73 mol

Moles of hydrogen

Molecular weight: M_(_H_2_)=30g/mol

n_(_H_2_) =\frac{mass}{molar \;mass}

n_(_H_2_) =\frac{5.80g}{2g/mol}

n_(_H_2_) = 2.9 mol

Hydrogen gas is in excess.

NO is the limiting reagent.

The amount of the excess reagent remains after the reaction is complete.

n_(_N_2_) = (2.9 mol- 0.73 mol NO x \frac{1 \;mol \;of \;H_2}{2 \;mole \;of \;NO}) x \frac{2g \;of \;H_2}{mole \;of \;H_2}

n_(_N_2_) =4.34 g

Learn more about limiting reagents here:

brainly.com/question/26905271

#SPJ1

5 0
1 year ago
What is the principle called the conversation of matter
bekas [8.4K]
Classical physics that matter cannot be created or destroyed in an isolated <span>system</span>
3 0
2 years ago
Element X reacts with chlorine to form an ionic compound that has a formula of XCl2. To which group could element X belong?(1) G
kap26 [50]
Chlorine has a charge -1. It means that X is +2 so that the formula is XCl2. Group 2 is the correct answer.
7 0
3 years ago
Read 2 more answers
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