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topjm [15]
3 years ago
15

Is Carbon combustible? Why or why not?

Chemistry
1 answer:
valkas [14]3 years ago
3 0
Carbon is not combustible because when it combines with oxygen its energy increases thus it doesnt combust. 
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Only positive ions have a charge. true or false?
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Answer:

true

Explanation:

5 0
3 years ago
3. In a typical titration experiment a student titrates a 5.00 mL sample of formic acid (HCOOH), a monoprotic organic acid, with
ira [324]

Answer:

2.893 x 10⁻³ mol NaOH

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Explanation:

The balanced reaction equation is:

HCOOH + NaOH ⇒ NaHCOO + H₂O

At the endpoint in the titration, the amount of base added is just enough to react with all the formic acid present. So first we will calculate the moles of base added and use the molar ratio from the reaction equation to find the moles of formic acid that must have been present. Then we can find the concentration of formic acid.

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Extra significant figures are kept to avoid round-off errors.

Now we relate the amount of NaOH to the amount of HCOOH through the molar ratio of 1:1.

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The concentration of HCOOH to the correct number of significant figures is then calculated as follows:

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The question also asks to calculate the moles of base, so we convert millimoles to moles:

(2.892992 mmol NaOH)(1 mol/1000 mmol) = 2.893 x 10⁻³ mol NaOH

7 0
3 years ago
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Good grief, this stuff got caught in a black hole somewhere. It is terribly dense.
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d = mass / volume
m = 20 kg
v = 5 mL

d = 20kg / 5 mL
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d = 4 kg / cc

A <<<<answer
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5 0
3 years ago
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