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bogdanovich [222]
3 years ago
12

6. Dans un récipient de volume inconnu se trouve un mélange à l'équilibre contenant 0,280 mol d'oxyde de

Chemistry
1 answer:
Daniel [21]3 years ago
3 0
The elle les elevó wowing elem keel elle elementary wmwklwl
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Which option supports a theory and allows it to remain the same
mr_godi [17]

Answer:

D.

Explanation:

That would be the last option.

Repeated similar experimental outcomes are confirmation of the theory.

4 0
3 years ago
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Use Table 1 below to answer the following question: Scientists find a piece of wood that is thought to be from an ancient fire c
mrs_skeptik [129]
Time passed    Time passed  14C initially present   14C at end of half-life
(half life)               (Years)
 ........................................................................................................................
     0                           0                           1,000,000                 1,000,000

     1                           5750                          .....                          5,00,000

     2                          11500                         .....                          2,50,000          

     3                          17250                         .....                          1,25,000
 
     4                           23000                        .....                            62,500

Since, wood sample contained 1/16 of current atmospheric concentration of 14C. It means that sample has crossed 4 half-life. Number atoms left are 4 half life = 62,500
6 0
3 years ago
What is meant by being a base.<br> What is the meaning of a hydrogen acceptor
kiruha [24]
My answer -

 
hydrogen acceptor any substance ( CYTOCHROME OXIDASE) that can become reduced by the addition of hydrogen, thus enabling the transfer and release of energy as in the ELECTRON TRANSPORT SYSTEM.

P.S

Have an AWESOME!!! day :)
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PLS HELP!
Nadya [2.5K]

Question 1

Fe(III) forms a chelate complex with salicylic acid which has purple color. therefore, when a solution is made either with salicylic acid or with aspirin having trae amount of salicylic acid in it, we see color formation in solution due to the resulting complex formed.

Question 2

The Fe(III) itself absorbs some light and gives an absorbance value for the solution. Therefore, it is necessary to blank the spectrophotometer with a Fe(III) solution prior to measurement of test solutions.

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