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
nirvana33 [79]
3 years ago
13

Why do scientists define systems?

Chemistry
2 answers:
irina [24]3 years ago
4 0

Answer:B

Explanation:

Bad White [126]3 years ago
3 0

Answer:

<em>b</em>

Explanation:

<em>a p e x :)</em>

You might be interested in
In the important industrial process for producing ammonia (the Haber Process), the overall reaction is:
Kisachek [45]

Answer:

Explanation:

Here we have to use stoichiometry.

First of all, we have to calculate the mass of 100% of yield:

1.7 g ------- 98%

X -------- 100%

X = 1.73 g (approximately)

Second, we have to calculate the mass of N2 that is necessary to react to produce the mass of 1.73g of NH3. To do that, we have to use the Molar mass of N2 and NH3 and don't forget the stoichiometric relationship between them.

Molar Mass N2 : 14x2 = 28 g/mol

Molar Mass NH3: 14 + 3 = 17 g/mol

28g (N2) ------- 17x2 (NH3)

X ------------ 1.73 g

X = 1.42 g (approximately)

5 0
3 years ago
2CO + 2NO yields 2CO2 + N2 which element was oxidized
aalyn [17]
2C⁺²O⁻² + 2N⁺²O⁻² = 2C⁺⁴O⁻²₂ + N₂⁰

C⁺² → C⁺⁴ + 2e⁻

carbon was oxidized
5 0
2 years ago
What is the symbol for the isotope of 58co that possesses 33 neutrons?
Cerrena [4.2K]

Cobalt because it has an atomic mass of 58 and 33 neutrons.

3 0
3 years ago
The color of coral depends on ______.
MrRissso [65]

Answer:

Hello I didi this quiz and i got 100% and the answer is (a) hope this helps <3

Explanation:

7 0
2 years ago
mercury fulminate is so unstable it is used in blasting caps. Can you offer an explanation for this instability
Yakvenalex [24]

Answer:

Mercury fulminate is very sensitive to shock, friction, and sparks. ... put mercury fulminate into blasting caps for detonating dynamite.

Explanation:

6 0
2 years ago
Other questions:
  • One mole of an ideal gas<br><br> occupies a volume of 22.4<br><br> liters at
    15·1 answer
  • Which statement describes DNA?
    15·2 answers
  • How many grams are there in 7.5 X10^23 molecules of H2SO4?
    9·2 answers
  • A laboratory utilizes a mixture of 10% dimethyl sulfoxide (DMSO) in the freezing and long-term storage of embryonic stem cells.
    5·1 answer
  • What is the definition of electron configuration. and thanks
    5·1 answer
  • Who is princess tianas best friend, if you can get her name right then ill give you brainliest
    10·2 answers
  • Calculate the pH during the titration of 20.00 mL of 0.1000 M HNO2(aq) with 0.1000 M KOH(aq) after 13.27 mL of the base have bee
    13·1 answer
  • . Nhiệt độ ban đầu của 344 g một mẫu sắt là 18,2oC. Nếu mẫu sắt này hấp thụ 2,25 kJ nhiệt lượng thì nhiệt độ cuối của mẫu sắt nà
    14·2 answers
  • As you move down the periodic table atoms get bigger. This is because.
    11·1 answer
  • How do plants convert glucose to energy?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!