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VMariaS [17]
3 years ago
12

Which of the following is false?

Chemistry
2 answers:
Alla [95]3 years ago
8 0
Protoporphyrin is bound to an iron atom in its Fe² state, not Fe³. It would need hemin to be able to bind to an iron atom in a Fe³ state.

The answer is B.
kipiarov [429]3 years ago
4 0
The accurate answer is
<span>b) Protoporphyrin is bound to a single iron atom in its Fe+3 state

Explanation:
</span>Protoporphyrin is bound to a single iron atom in its Fe+2<span> state.</span> 
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Write a balanced equilibrium equation for the dissolution of nai in water. include phases.
Bess [88]
Dissolution means to make the compound apart, So when we have ionic compounds like NaI which has metal and non-metal ions, It separates into parts of positive ions and negative ions. After we separate this compound apart we will put the charge of each on above its symbol and then start to balance the equation of the dissolution.

So the dissolution equation of NaI is:
NaI(s) → Na^+(s)  +   I^-(Aqu) 
3 0
3 years ago
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unknown substance's mass: 75.0g, unknown substances molar mass = 150.0 g/mol, Hfus = 5.0x10^3 J/mol, Hvap = 1.00 x 10^4 J/mol, u
Leni [432]
These are the answers hope this helps

4 0
3 years ago
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The final charge on each of the three separated spheres in part (b) is +3.0 μC. How many electrons would have to be added to one
marishachu [46]

Answer:

1.873\times 10^{13} electrons should be added to one of these spheres to make it electrically neutral.

Explanation:

Total charge on each sphere =  +3.0 μC =3\times 10^{-6} C

1 \mu C=10^{-6} C

In order to neutralize the positive charge equal magnitude of negative charge is to be added.

Total charge electrons, Q=  -3.0 μC =-3\times 10^{-6} C

Number of electrons = n

Charge on a single electron, e = -1.602\times 10^{-19} C

Q = n × e

-3\times 10^{-6} C=n\times (-1.602\times 10^{-19} C)

n=\frac{-3\times 10^{-6} C}{-1.602\times 10^{-19} C}=1.873\times 10^{13}

1.873\times 10^{13} electrons should be added to one of these spheres to make it electrically neutral.

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Use the concept of natural selection to explain why organisms typically adapt over time.
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Organisms is an environment or habitat for species
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Which statement best describes London dispersion forces?
sineoko [7]

<span>London dispersion forces is the weakest intermolecular force. It is a temporary force that happens when electrons of two adjacent atoms occupy positions that make atoms form dipoles which are temporary dipoles. This is also referred as dipole-dipole attraction.</span>

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3 years ago
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