1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Flauer [41]
2 years ago
9

Air is about 78% nitrogen gas (N2) by mass. The molar mass of nitrogen gas is 28. 0 g/mol. A 100. 0-g sample of air contains how

many moles of nitrogen? 2. 8 3. 6 28 78.
Chemistry
1 answer:
andrezito [222]2 years ago
4 0

Answer:

fsadfd

Explanation:

You might be interested in
The area surrounding the nucleus is called: protons electrons neutrons electron cloud
vesna_86 [32]

Answer:

eletrons

Explanation:

eletrons is not in the neuclus its around it

5 0
3 years ago
Read 2 more answers
If an object has a density of 0.00018 g/cm cubed, what density would it be if it had a mass of 10kg
Vladimir79 [104]

Answer:

Explanation:

first to get the density of some thing you have to devide the mass by the volume so 0.00018 (divided) by 10 kg and that gives you ur answer

3 0
3 years ago
What does Avogadro's law state and what is the formula​
sertanlavr [38]

The law is approximately valid for real gases at sufficiently low pressures and high temperatures. The specific number of molecules in one gram-mole of a substance, defined as the molecular weight in grams, is 6.02214076 × 1023, a quantity called Avogadro's number, or the Avogadro constant.

5 0
3 years ago
Read 2 more answers
Why is it hot in summer and in the winter why is cold
grigory [225]

Answer: The sun is closer to the Earth is the summer and farther in the winter causing it to be hotter than it is colder in the summer and vise versa for the other question.

Explanation: I learned it ;)

8 0
3 years ago
Read 2 more answers
What is the formula of calcium carbonate​
lara31 [8.8K]

Answer:

<h3>hope its help u.................</h3>

8 0
3 years ago
Read 2 more answers
Other questions:
  • 1 .
    7·2 answers
  • Regan has an empty glass cup. It has a mass of 0.3 kg. She drops the cup on the ground and it shatters into several pieces. If s
    8·1 answer
  • which type of cell is a rose thorn A prokaryotic B eukaryota plant C eukaryotic animal D chloroplastic
    13·2 answers
  • What does an atomic number represent in an atom?
    10·1 answer
  • Compare and contrast granite and rhyolite
    7·2 answers
  • A chemist adds of a zinc nitrate solution to a reaction flask. Calculate the mass in kilograms of zinc nitrate the chemist has a
    12·1 answer
  • 40 g of sodium reacts with ____ g of chlorine to produce 117 g of sodium chloride *
    15·1 answer
  • Provide a set of step by step instructions to make 750 mL of 1.5 M calcium chloride solution.
    10·1 answer
  • Si un átomo gana electrones se convierte en un.?
    7·1 answer
  • What medal has the highest volume?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!