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STALIN [3.7K]
3 years ago
7

How does flame spread over liquid depend on the flash point?

Chemistry
1 answer:
zvonat [6]3 years ago
6 0
If the liquid is at or above its flash point, the flame spread rate is fast, and the entire pool is engulfed within seconds. ... As the liquid temperature decreases, flame radiation must both heat the liquid to the flash point temperature and supply the heat of vaporization.
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Standard reduction potentials for nickel(II) and copper(II) The standard reduction potential for a substance indicates how readi
AleksandrR [38]

Answer:

The standard potential, E cell, for this galvanic cell is 0.5670V

Explanation:

Ni²⁺(aq)  +  2e⁻   →   Ni(s)           E red =  - 0.23V      ANODE

Cu²⁺(aq) +  2e-    →  Cu(s)          E red = + 0.337V    CATHODE

ΔE° = E cathode - E anode

ΔE° = 0.337V - (0.23V) = 0.5670 V

6 0
3 years ago
If the thermal energy of the system increases by 400 j and 1100 j of heat were added to the system how much work did the system
Pie

your answer should be 700J

7 0
4 years ago
C3H8 is ________<br><br>A. unsaturated <br>B. saturated​
ELEN [110]
I believe it is saturated!

I hope this helps. Please mark me the Brainliest, it’s not necessary but I put time and effort into every answer and I would appreciate it greatly. Have a great day, stay safe and stay healthy ! :)
5 0
3 years ago
An arrow is fired at a target on a high wall. Which statement correctly describes the change in the energy of the arrow as it mo
grigory [225]

Answer : Option C) The kinetic energy decreases as potential energy increases.

Explanation : As the target is fired high on the wall, the change in the energy that is observed as the arrow moves towards the target is kinetic energy starts to decrease as the arrow reaches nearer towards the target and the potential energy is observed to increase. So, in short the energy transformation is from kinetic energy from a moving arrow to potential energy when the arrow hits the target.

8 0
3 years ago
Read 2 more answers
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Vlada [557]
The correct answer is letter B. Genetic engineering has shown a great leap in Science because we can now harness the ability of mutations of cells in crops and in other aspects. Flour is a commodity that is greatly needed by the masses and learning how to genetically modify its components to help it breed better is a great advantage for any society.
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