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Rudik [331]
3 years ago
13

Photosynthesis is a redox reaction. this means that h2o is _____ during the light reactions and co2 is _____ during the calvin c

ycle. see concept
Chemistry
1 answer:
ycow [4]3 years ago
7 0
1) oxidized
2) reduced
I think
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Which postulate of Dalton's atomic theory was later proven wrong?
ruslelena [56]

Answer:

Option c and d

Explanation:

John Dalton. In 1808, John Dalton proposed a theory known as Dalton’s Atomic Theory. The theory was published in a paper titled “A New Chemical Philosophy”. This theory was new to that era

The 5 postulates of Daltons' atomic theory are:

1. All the matters are made of atoms.

2. Atoms of different elements combine to form compounds

3. Compounds contain atoms in small whole-number ratios

4. Atoms can neither be created nor destroyed . (This was later proven wrong )

5. All atoms of an element are identical and have the same properties (This was later proven wrong as atoms of same element may be different in case of elements having isotopes )

Therefore, options c and d are the answer.

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3 years ago
A fire is an example of ________________ reaction, because heat is _____________ the system.
Over [174]

d. exothermic; leaving

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  • Fire is an exothermic reaction.
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  • A fire is an example of combustion.
  • In fire both heat and light are left from fire due to the oxidation of fuel.

Hence, option d. exothermic; leaving is the correct option.

Learn more about fire:

brainly.com/question/12761984

8 0
3 years ago
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Which of these substances is the least acidic? solution A, pOH = 1.5 solution B, pOH = 7.0 solution C, pOH = 13.5Which of these
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Answer: solution A, pOH =1.5

Explanation:

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I looked online and I found that it is <span>1X10 to the power of -22 grams.</span>
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