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
Which of the following may indicate that a chemical reaction has occurred?
lianna [129]

Answer:

D, all of the above

Explanation:

3 0
2 years ago
the chloride of a metal M contains 47.25% of metal 1.0 gram of metal would be displaced from a compound by 0.88 gram of another
GenaCL600 [577]

Answer:

The equivalent weight of M is approximately 31.8 g

The equivalent weight of N is approximately 27.98 g

Explanation:

The given parameters are;

The percentage of the the metal M in in the chloride = 47.25%

Where by the chemical formula for the metal chloride is MClₓ, we have;

47.25% of the mass of MClₓ = Mass of M = W

Therefore, we have;

\dfrac{0.4725}{W} = \dfrac{1}{W + 35.5 \cdot x}

0.4725 × (W +  35.5·x) = W

0.4725·W + 0.4725×35.5×x = W

W - 0.4725·W  = 16.77·x

0.5275·W = 16.77·x

W/x = 16.77/0.5275 = 31.799 = The equivalent weight of M

The equivalent weight of M = 31.799 ≈ 31.8 g

Given that 1 gram of M is displaced by 0.88 gram of N, then the equivalent weight of N that will displace 31.799 = 0.88 × 31.799 ≈ 27.98 g

The equivalent weight of N = 27.98 g.

7 0
2 years ago
Which picture best shows commensalism
Luda [366]

Answer:

what picture?

Explanation:

6 0
2 years ago
Read 2 more answers
What type of solution has a pH of 7?
motikmotik
If pH+ is 7
It is Neutral solution
5 0
3 years ago
The mass number of an atom is the number of
sergeinik [125]

Answer:

protons plus neutrons

Explanation:

jsut the definition

6 0
2 years ago
Read 2 more answers
Other questions:
  • How many Cl- ions are there in 400.5 grams of AlCl3?
    15·2 answers
  • An ionic bond is _?_
    5·1 answer
  • A particular 3.0 L solution contains 2.5 mmol (millimoles) of a substance. What is the concentration of this solution in number
    13·1 answer
  • Which of the following atoms has the highest electronegativity?
    9·1 answer
  • Help Plzzzzzz!!!!!!!
    10·2 answers
  • Water has a higher boiling point than expected because A. there is so much water vapor in the atmosphere. B. water molecules are
    9·2 answers
  • List 5 kinds of animals with backbone (Describe each of them)
    7·1 answer
  • Which of the following is saturated hydrocarbon?<br>1 alkyne<br>2 alkane<br>3 ethylene<br>4 alkene​
    9·2 answers
  • This is for Earth/Space Science. Please help me and thank you in advance. I need this quickly please and thank you.
    9·1 answer
  • Explain the scientific meaning and use of the word "transformation".
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!