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ozzi
2 years ago
8

Pedro’s teacher wrote the formula for glucose, a common sugar, on the board. Pedro learned that the letters in the formula repre

sent the elements that are in a glucose molecule and that the small subscript numbers in the formula ________ how many atoms of each element are present in a molecule of glucose. By looking at the formula, Pedro determined that each molecule of glucose is made up of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
Pedro’s teacher wrote the formula for glucose, a common sugar, on the board. Pedro learned that the letters in the formula represent the elements that are in a glucose molecule and that the small subscript numbers in the formula ________ how many atoms of each element are present in a molecule of glucose. By looking at the formula, Pedro determined that each molecule of glucose is made up of 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms.
A) repeat. B) permi.t C) transfer, D) indicate
Chemistry
1 answer:
sveta [45]2 years ago
8 0

Answer:

D.

Explanation:

Im not quite sure if its correct or not

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Determine the [H3O+] in a 0.265 M HClO solution. The Ka of HClO is 2.9 × 10-8.
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8.8 × 10-5 M is the  [H3O+] concentration in 0.265 M HClO solution.

Explanation:

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the equation of dissociation can be written and ice table to be formed.

 HClO +H2O ⇒ ClO- + H3O+

I  0.265                0        0

C  -x                    +x     +x

E  0.265-x          +x      +x

Now applying the equation of Ka, where Ka is given as 2.9 × 10-8.

Ka = \frac{[ClO-][H3O+]}{[HClO]}

2.9 × 10^-8 = \frac{[x] [x]}{[0.265-x]}

x^{2} = 7.698 x10^{-9}

x = 8.8 × 10-5 M

The hydronium ion concentration is 8.8 × 10-5 M  in 0.265 M solution of HClO.

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Great amounts of atomic energy are released when a _______reaction occurs.

Great amounts of atomic energy are released when a chemical reaction occurs. The process can be an exothermic reaction or endothermic reaction depending on the substances involved in the reaction.

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