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alukav5142 [94]
3 years ago
15

How are cistrans isomers used for night vision?

Chemistry
1 answer:
Paladinen [302]3 years ago
7 0

Qual das alternativas a seguir é uma mistura homogênea?

Escolha uma:a. Mercúrio metálico e água. b. Gelo e água líquida. c. Areia e carvão em pó. d. Nitrogênio gasoso e vapor d’água. e. Poeira e ar atmosférico.
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Draw all resonance structures for the nitryl fluoride molecule, no2f.
denis-greek [22]
From  electronic  configuration valence electron of  Nitrogen is 5,  oxygen  6x2  which 12 since it  involve  two  molecules ,  that of is frulorine is  7, and  that No2F is 24  which  is  gotten  form  adding (5,12,7  ).All  resonance structure  are  as  follows
       F
 ..    I    ..
: O : N :O: 
 
              ..
     OR  : F:
              I                             

             N                                                  ..                                                                                                                                    : F:

          /         \                        or                   I

   ..                 ..                                               N

:O  :            :O:                                       / /        \\
                                                            / /               \\
                                                         :O :            :  O:
7 0
4 years ago
What are the two toxic byproducts of incomplete combustion?
Brums [2.3K]
Answer- C (water and carbon dioxide)
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3 years ago
H2S (g) + O2(g) -> SO2+ H2O, how many grams of O2 are needed to make 25.0 g of SO2 (Hint: balance the equation first)
vekshin1

Answer:

Hello

The answer is 18,7(b)

Explanation:we don't know the value of o² so at first we should put (x)instead of gr of o²and then write 1molO²/32grO²×2mol SO²/3mol O²×64gr SO²/1molSO²=25 gr SO².and then just find the value of (x).

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3 years ago
How many protons are in an element with an atomic number of 8 and a mass of 18?
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B: 8 the amount of protons is equal to the atomic number
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