0
endothermic
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Is a light stick endothermic or exothermic?
endothermic
What type of reaction causes monomers to stick together?
This reaction is called polymerization.
When you crush a glow stick and shake it the two liquids mix and the stick glows. Is this a chemical reaction and is energy being absorbed or given off?
In a glow stick a chemical reaction occur; the energy is released.
Can light bring about chemical reactions and can chemical reaction produce light?
Light can indeed cause chemical reactions. A very good example of this happens constantly above our heads. The light from the sun causes the formation of oxygen radicals in the atmosphere by disocciation. The formula for this is: O2 + hv --> 2O. , where h is planck's constant and v is the frequency of the light. The "." on the oxygen atoms formed represent a single unpaired electron which causes them to become very reactive (they will react with almost anything). They react with other O2 molecules to form O3, better known as ozone. This is how the ozone layer is formed. Reactions can indeed produce light. Ever used a glowstick? You break a capsule inside and then shake the stick to cause a chemical reaction which gives off light. This also explains why glowsticks stop glowing. The reaction has finished. Unfortunately I do not know the reaction for this process or indeed which chemicals are involved.
Why can you see the distance on the meter stick as a measure of reaction time?
bkehh
Is a glow stick endothermic or exothermic?
a glow stick can be a endothermic or exothermic reaction
Is a light stick endothermic or exothermic?
endothermic
Can heat add energy to the chemical reaction on a light stick?
can heat add energy to the chemical reaction in a glwo stick
Is the substance inside a glow stick xenon?
no, xenon is a noble gas which only produces light when electricity is passed through it. glow sticks work by combining 2 chemicals that produce light via a chemical reaction
Are glowsticks reusuable?
No, a glow stick cannot be reused. When the stick is broken, the chemicals, which have been held separate, are released. They will mix and begin the reaction that releases the light. The reaction will continue until the chemicals are "used up" and the stick stops glowing. The light stick cannot then be reused.
Does the liquid inside a glow stick stain clothes or hurt wood floors?
Yes there is a pigment in the stick after the chemical reaction & it will stain floors & textiles
When you drop the stick on the reaction is?
Dropping the stick on the reaction is measuring how long that reaction can go.
Why does a match stick light when rubbed on a rough surface?
When a match stick is rubbed on a rough surface, the friction creates heat. The heat then ignites the chemicals on the match head, specifically the phosphorus and sulfur, which undergo a chemical reaction with the oxygen in the air. This reaction produces a flame, causing the match stick to light.
How do tickle a bellybutyon?
you stick you finger inside and wiggle it around or use a peacock feather and the reaction is a lot of wriggling and gigglig
How might putting a light stick in the freezer make it glow longer?
it freezes the liquid inside
When a lightstick has extinguished does putting it in a freezer revitalize the light-stick?
No. A lightstick is a plastic tube with a glass capsule inside. The solutions in the tube and capsule are different. When the capsule is broken, and the stick shaken, the two solutions mix and start to react. One of the products of the reaction is light. When the reaction runs to completion the light stops. At that point all the reactants have turned into products and freezing won't change that. However, freezing may cause the tube to burst and leave glass shards and a potentially dangerous substance on the bottom of your freezer.
What are some examples of chemical energy being converted into light energy?
A perfect example is a common glow stick. In a glow stick, phenyl oxalate, fluorescent dye, and hydrogen peroxide mix to produce a chemiluminescent reaction (generating light from chemical energy).
