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devlian [24]
3 years ago
13

Examples of light effecting chemical change​

Chemistry
1 answer:
Annette [7]3 years ago
8 0

Answer:

burning of wood ,cooking an egg,baking a cake,rusting of iron,digestion of food .

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Boiling water is frequently used to kill parasites within the water. If you are boiling fresh water, and liquid water remains in
iogann1982 [59]

Answer: hello dear, your question seems incomplete, but, chill out not to worry let me give you one or two things you need to know in order to be able to solve this kind of question in the nearest future, check this out!.

Explanation:

In order to kill parasites and to make the water the be safe from microoganisms, boiling is a great procedure for making sure this happens, that is to say is the act of purification of water. However, when you over-boil water it also depletes the amount of oxygen present in the water.

When you boil water for the purpose of killing germs/ parasites, the PURIFIED PART IS THE WATER VAPOUR, the LIQUID WATER STILL HAS THE DEAD PARASITES IN THEM. That is the reason why the process called DISTILLATION is more efficient in purifying water is more efficient than ordinary boiling of water.

The liquid water remaining in the container after the boiling would have also been purified though, but it will still contain dead contaminants, so, filtering can be done or one can drink the water like that.

7 0
3 years ago
When sodium metal is added to water, an orange flame is observed on the metal surface. Based on this observation, what can best
pickupchik [31]
All you can conclude is that something must be burning with an orange flame.

Actually, the "something" that must be burning is the hydrogen that is produced when the sodium reacts with the water:

2Na + 2H₂O → 2NaOH + H₂ + heat

So much heat is produced that the hydrogen catches fire and some of the sodium evaporates into the flame.

The electrons in the sodium atoms get "excited" in the flame. When they drop back to a lower energy level, they emit energy in the form of an orange-yellow light.
3 0
4 years ago
Convert each of the following measures in length 1.1cm to meters​
trasher [3.6K]

Answer:

what measures

Explanation:

7 0
4 years ago
Read 2 more answers
Helium gas collected at a pressure of 0.0045 atm is put into a flexible balloon measuring 350 mL in volume. What volume, in mL,
NISA [10]
Answer: 0.25 atm
Evidence: i looked it up
6 0
3 years ago
Describe the energy transformation when a match burns.
devlian [24]
The burning of a match is an exothermic reaction. Heat is being released as a result of the reaction.
3 0
4 years ago
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