A 'spontaneous reaction' in chemistry refers to a reaction that continues on its own once started, not a reaction that starts spontaneously. A sparkler, once lit, undergoes a combustion reaction that needs no additional energy input.
The term spontaneous reaction in chemistry does not mean that a reaction starts spontaneously without any trigger. It actually refers to a reaction that, once started, continues without any additional external input. In the case of a sparkler, the initial energy to start the reaction is provided by lighting the sparkler. Once lit, the combustion reaction continues on its own, making it a spontaneous reaction.
The reactants in the sparkler (often metal powders and an oxidizing agent) are in a higher energy state than the products (typically metal oxides and heat) they form during burning. This difference in energy drives the reaction forward, making it spontaneous. The overall energy of the system decreases, which aligns with the principle of thermodynamics stating that a spontaneous process leads to a decrease in the system's free energy.
#SPJ2
B.soda water
C.milk
D.mud
Answer:
The answer is C
Explanation:
Answer: The star's outer layers drifts away.
Explanation: When a star starts running out of fuel the pressure in the core becomes very high which pushes the outer layers of the star.
A sun like star becomes a red giant and after throwing away the mass, the core contracts to becomes a white dwarf.
A massive star becomes super-giant and then the core becomes a neutron star or a black-hole.
Answer:
The answer is d
Explanation:
Answer:
ways it rust are
1.you put water on it
2.let it sit out side for about a month or 2
or
you put the iron in water still wait a month or 2 then
you got the full or sum rusty parts
Explanation:
ether way you need water, air ,and the main thing... IRON