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andriy [413]
3 years ago
7

NHa is an example of O an element. O a mixture. O a compound O an atom.

Chemistry
2 answers:
Pepsi [2]3 years ago
7 0

Answer:

COMPOUND

Explanation:

I THINK

Luden [163]3 years ago
4 0

Answer:

what is the question

Explanation:

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Which of the following correctly describes a compound?
Nutka1998 [239]

A compound is a pure substance formed by the chemical combination of two or more different elements.


A compound may be splitted into simpler substances by chemical reactions, and has different properties to those of the elements that form it.


The composition of a compound is fixed: every piece of a compound has the same kind of atoms, bonded in the same way and proportion.


Some examples of compounds are H₂O, NaCl, H₂O₂, CH₃COOH. As you see, they have a chemical formula which states the kind and number of the atoms that form them.


They are different to mixtures, which are formed by two or more compounds, in a variable proportion, and can be separated by physical media. Some examples of mixtures are the solutions (e.g. NaCl dissolved in H₂O), and some solid mixtures (e.g. a mixture of marbles and sand).

3 0
3 years ago
The theoretical yield of ammonia in an industrial synthesis was 550 kg, but only 480 kg was obtained. What was the percentage yi
Klio2033 [76]

We know that when calculating percent yield, we use the equation:


Percent yield=\frac{Actual yield (A)}{Theoretical yield (T)}


Since the quantities that we are given in the question are equal, we can just directly divide them to find percent yield:


Percentyield=\frac{480kg}{550kg} =0.8727*100=87.27


So now we know that the percent yield of the synthesis is 87.27%.

7 0
3 years ago
What is the limiting reactant for the following balanced equation when 9 moles of AlF3 are mixed with 12 miles of O2?
tamaranim1 [39]
<h2>Answer:AlF_{3} </h2>

Explanation:

The chemical equation of the reaction that occurs when AlF_{3} reacts with O_{2} is

4AlF_{3}+3O_{2}→2Al_{2}O_{3}+6F_{2}

4 moles of AlF_{3} requires 3 moles of O_{2}.

1 mole of AlF_{3} requires \frac{3}{4} moles of O_{2}.

Given that we have 9 moles of AlF_{3}.

9 moles of AlF_{3} requires \frac{3}{4}\times 9=6.75 moles of O_{2}.

But we have 12 moles of O_{2}.

So,AlF_{3}  will be consumed first.

So,AlF_{3}  is the limiting reagent.

3 0
3 years ago
Which of the following is the best reference for more information regarding compounding?
stiks02 [169]

Compounding Corner on RxNet is the best reference for more information regarding compounding

<u>Explanation:</u>

RxNet is an open online community, consolidating scientists from the domains of chemistry, biochemistry and expanding industry of drug innovation and improvement. Compounding presents an innovative way for pharmacists to customize prescriptions to suit the requirements of their patients.

The art of compounding employs advanced medicine while still sticking to the roots of the profession of pharmacy. Compounding pharmacies can create unparalleled dosage forms based on patient preferences. Compounded medicines are usually reliable and sufficient for most victims who have spoken to their physician about their wellness.

6 0
3 years ago
The two sides of the equation should be
KonstantinChe [14]

Answer:

Hey mate.....

Explanation:

This is ur answer.....

---> Equal

hope it helps,

mark me as the brainliest,

Follow me......

8 0
3 years ago
Read 2 more answers
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