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Novay_Z [31]
3 years ago
5

Is pyrophoric a chemical or physical property

Chemistry
1 answer:
Neporo4naja [7]3 years ago
5 0

Answer:

Pyrophoricity is a property of metals and oxides of lower oxidation states, including radioactive ones, in which they spontaneously ignite during or after stabilization.

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Is a planar carbon "backbone" possible for propane? Explain.
tankabanditka [31]

Answer:

Cyclopropane has a planar carbon back bone while propane does not

Explanation:

We have to recognize that in straight chain saturated organic compounds, carbon atoms have a tetrahedral geometry. Each carbon atom is bonded to four other atoms.

However, carbon atoms in cyclic compounds are also sp3 hybridized with each carbon bonded to only four other atoms but the ring system is highly strained.

Cyclopropane is a necessarily planar molecule with a bond angle that is far less than the expected tetrahedral bond angle due to strain in the molecule. Hence, the carbon atoms may have have a "planar backbone".

4 0
3 years ago
How much heat is required to convert 90. g of ice at -4.0 C to water vapor (steam) at 110 C
lakkis [162]

Answer:  How much heat is required to convert 29 g of ice at -4.0 ˚C to water vapor at 105 ˚C (report your answer to three significant figures)? Answer all five parts, showing your detailed calculations: i) Heat to warm ice from -4.0 to 0 oC: ii) Heat to convert ice to liquid: iii) Heat to warm liquid to boiling: iv) Heat to convert liquid to gas

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Explanation:

e

6 0
2 years ago
Which components of the atom have a positive charge?
Sveta_85 [38]

Answer:

protons have a positive, neutrons have no charge and electrons have a negative chage

Explanation:

4 0
4 years ago
Read 2 more answers
What is the kinetic energy of 3500 kg bus that is moving at 25 m/s
Bond [772]

Answer:

<h2>1093750 J</h2>

Explanation:

The kinetic energy of an object can be found by using the formula

k =  \frac{1}{2} m {v}^{2}  \\

v is the velocity

m is the mass

From the question we have

k =  \frac{1}{2}  \times 3500 \times  {25}^{2}  \\  = 1750 \times 625 \\  = 1093750 \:  \:  \:  \:  \:

We have the final answer as

<h3>1,093,750 J</h3>

Hope this helps you

8 0
3 years ago
In an unconformity between two layers of rock how is the upper layer usually described
otez555 [7]
Mantle is zee answer
4 0
3 years ago
Read 2 more answers
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