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yKpoI14uk [10]
3 years ago
6

Which best explains why sawdust burns more quickly than a block of wood of equal mass under the same conditions?

Chemistry
2 answers:
hammer [34]3 years ago
8 0
More molecules in the sawdust can collide with oxygen molecules
Alla [95]3 years ago
5 0

Answer:

More molecules in the sawdust can collide with oxygen molecules

Explanation:

my foot says so

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After some wood has completely burned in a fire, some of the matter that made up the wood has been destroyed.
nekit [7.7K]
The correct answer is D - When burning a log, the wood combined its components with oxygen. if you could capture the products (CO2, H2O, C, CO, etc), you would have a greater mass than what you started with, burning the log combined the log's components with oxygen in order to burn it.
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3 years ago
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3 0
2 years ago
Please help with this, i don't really get how to do this
LuckyWell [14K]
#4 and #5:
To find pH given concentration of H+ or H30+
pH = - log (H+ or H30+ M)

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8 0
3 years ago
Melatonin has the chemical formula C13H16N2O2. Less than 10 milligrams(0.01g) Convert the melatonin to moles
oee [108]

Answer: There are 0.000043 moles of melatonin.

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

given mass = 10 mg = 0.01 g

molar mass of C_{13}H_{16}N_2O_2 = 232.28 g

{\text {moles of melatonin}}=\frac{0.01g}{232.28g/mol}=0.000043moles

Thus there are 0.000043 moles of melatonin

6 0
3 years ago
ASAP worth 15 points also
Taya2010 [7]
The person above me is correct I took a test on this so it’s the right answer
7 0
3 years ago
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