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rjkz [21]
2 years ago
15

NEED HELP FAST! 20 POINTS!!

Chemistry
2 answers:
OverLord2011 [107]2 years ago
8 0
It travels through the sun
galina1969 [7]2 years ago
6 0
Since light waves can travel through an empty vaccum (which is what it is happening in this scenario) the sun radiates the light to us even though it takes 8 minutes to get here

also think of a lamp or a light on the ceiling as soon as you turn it on the light comes on to and if you were to put your hand on the light when it is on you will feel heat and the suns rays work the same way
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Answer:NH3

Explanation:Ecd

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3 years ago
Why methylene blue is blue
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Methylene blue indicates the presence of oxidizing agents because it is oxidized itself by these compounds. When electrons are stripped from methylene blue, the resulting molecule imparts a blue color to the solution--giving a clear sign of a chemical change.

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Adding sugar to your tea physical or chemical change ​
ExtremeBDS [4]

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physical

Explanation:

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6 0
3 years ago
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Which of the following equations follows the law of conservation of mass?
Dovator [93]

Answer:

option A = C₂H₄ + 3O₂   →    2CO₂   +  2H₂O

Explanation:

Law of conservation of mass:

This law stated that mass can not be created or destroyed in chemical reaction. It just changed from one to another form.

For example:

C₂H₄   +   3O₂   →    2CO₂   +  2H₂O

28 g   + 96 g    =      88 g  +  36 g

    124  g           =      124 g

This reaction correctly hold the law of conservation of mass.

Other options:

C  + 4H₂  →   CH₄

12 g  + 8g  = 16 g

  20 g  =   16 g

This reaction do not hold the law of conservation of mass.

3H₂O  →   3H₂  +  3O₂

  54 g  =   6 g +  96 g

   54 g =   102 g

This reaction do not hold the law of conservation of mass.

2Na  +  Cl  →  NaCl

46 g  + 35.5 g  =   58.5 g

  81.5 g = 58.5 g

This reaction do not hold the law of conservation of mass.

6 0
3 years ago
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WILL GIVE 100 PTS!!!
trasher [3.6K]

Answer:

no se pero gana pls PorFAVORRRRRR.... DOXEADO TU IP 19503236

3 0
2 years ago
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