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AnnZ [28]
3 years ago
6

What is an pH indicator

Chemistry
1 answer:
belka [17]3 years ago
5 0
A halo chromic chemical compound added in small amount to a solution, so the pH of the solution can be determined visually.
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Solve this problem using the appropriate law.
Irina-Kira [14]

Answer:

6.17 L

Explanation:

7 0
3 years ago
Determine the number of unpaired electrons expected for [Fe(NO2)6]3−and for [FeF6]3− in terms of crystal field theory.
arsen [322]

Answer:

A. One unpaired electron

B. 5 unpaired electrons

Explanation:

In A ,Fe is in +3 oxidation state and Electronic configuration- [Ar]3d5

And NO2 is a strong field ligand hence it causes pairing in t2g orbitals and results one unpaired electron in dZX orbital.

In B, also Fe is in +3 oxidation state but F is weak field ligand hence causes no pairing of Electrons hence it results 5 unpaired electrons with electronic configuration t2g^3 eg^2

7 0
3 years ago
Is mountain lions a herbivore
egoroff_w [7]
Mountain lion have to hunt other animals up in the Mountains. Other animals are meat. Therefore mountain lions are carnivores, not herbivores. 

I hope this helped!
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7 0
3 years ago
Read 2 more answers
What type of waves transmit signals in satellite communication?
serg [7]

Answer:

satellites communicate by using radio waves to send signals to the antennas on the Earth. the antennas then capture those signals and process the information coming from those signals.

hope this helps:)

7 0
3 years ago
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Use the nuclear decay reaction in the picture to answer the following question.
allsm [11]

Answer:

1a. Both sides of the decay reaction have the same charge.

b. The number of nucleons on both sides are the same.

2. The binding energy of one mole of the atom is 17.172 × 10^{16} J.

Explanation:

1a. Considering the two sides of the decay reaction and with respect to the law of conservation of charge, it can be observed that both sides have the same charge. Charge can not be created or destroyed in the process.

b. The number of nucleons on both sides are equal. No nucleon is created or destroyed in the process.

2. Binding energy is the minimum energy required to separate an atom into its nucleons. From Einstein's energy equation;

             E = Δmc^{2}

Where E is the binding energy of the atom, Δm is the mass defect and c is the speed of light.

Given that: Δm = 1.908 g/mol and c = 3 × 10^{8}. So that:

           E = 1.908 × (3*10^{8}) ^{2}

              = 1.908 × 9 × 10^{16}

              = 17.172 × 10^{16} J

The binding energy of one mole of the atom is 17.172 × 10^{16} J.

5 0
3 years ago
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