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Nikolay [14]
3 years ago
10

All of these are consumers EXCEPT a-

Chemistry
2 answers:
zhuklara [117]3 years ago
5 0

Answer:

Hello There!!

Explanation:

I think the answer is b.tree.......sorry if wrong

hope it helps,have a great day!!

~Pinky~

Iteru [2.4K]3 years ago
4 0
The answer is b. tree !!!!
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What is the conecntration of Fe3 and the concentration of No3- present in the solution that result when 30.0 ml of 1.75M Fe(No3)
zvonat [6]

Answer:

[Fe^{+3}]=0.700 M

[NO_{3}^{-}]=2.10 M

Explanation:

Here, a solution of Fe(NO₃)₃ is diluted, as the total volume of the solution has increased. The formula for dilution of the compound is mathematically expressed as:

C_{1}. V_{1}= C_{2}.V_{2}

Here, C and V are the concentration and volume respectively. The numbers at the subscript denote the initial and final values. The concentration of Fe(NO₃)₃ is 1.75 M. As ferric nitrate dissociates completely in water, the initial concentration of ferric is also 1.75 M.

Solving for [Fe],

[Fe^{+3}]=\frac{C_{1}.V_{1}}{V_{2} }

[Fe^{+3}]=\frac{(1.75).(30.0)}{45.0+30.0 }

[Fe^{+3}]=0.700 M

For [NO₃⁻],

There are three moles of nitrate is 1 mole of Fe(NO₃)₃. This means that the initial concentration of nitrate ions will be three times the concentration of ferric nitrate i.e., it will be 5.25 M.

[NO_{3}^{-}]=\frac{C_{1}.V_{1}}{V_{2} }

[NO_{3}^{-}]=\frac{(5.25)(30.0)}{30.0+45.0 }

[NO_{3}^{-}]=2.10 M

7 0
3 years ago
so I am working on this question for chemestry and can't figure out the format it wants since I am blind. The question states Wr
skelet666 [1.2K]

Answer:

Positron\rightarrow _{1} ^{0}e

Explanation:

lets take the particle is X, the given decay reaction can be written as follows

_{25} ^{49}Mn\rightarrow _{24}^{49}Cr+X

Now by using mass balancing:

The sum of the mass of right hand side=The sum of the mass of left hand side

49=49+M

M=0

Now by using atomic number balancing:

Atomic number on right side=Atomic number on left side

25 = 24 + Z

Z=1

Therefore we can say that , the mass of that unknown particle is 0 unit and atomic number is 1.

Thus that particle will be positron.

Positron\rightarrow _{1} ^{0}e

6 0
3 years ago
What is derived from sheep and goats that is used in break fluid
Korvikt [17]

the answer is A I took the test

6 0
3 years ago
Read 2 more answers
A chemist observes that a large molecule reacts as if it were much smaller. The chemist proposes that the molecule is folded in
nadezda [96]

Answer:

Hypothesis

Explanation:

The following steps are applicable when we wish to prove a specific fact:

  • a hypothesis is made; this is a statement that we provide after some observations and we wish to either prove or deny it;
  • multiple experiments are carried out in order to gather significantly substantial amount of data that can be then further analyzed and any tendencies can be noticed;
  • based on the data gathered, conclusions are made: we either prove or deny the hypothesis. If hypothesis is proved, it may become a theory over long time.

In the context of this problem, we're at the first step where we make a hypothesis.

6 0
3 years ago
Which principle goes against Bohr's theory and why??​
Basile [38]

Answer:

As the Bohr's fixed orbit gives precise information about the radial position and momentum of the orbit, it is against the Heisenberg uncertainty principle. Thus it is inferred that the Heisenberg uncertainty principle goes and the concept Bohr's fixed Orbit are opposite to each other.

Explanation:

7 0
3 years ago
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