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deff fn [24]
3 years ago
6

DESCRIBE TROPICAL STORM; THUNDERSTORM; AND TORNADOES

Chemistry
1 answer:
Sergeu [11.5K]3 years ago
7 0

Answer:

a tropical strom is when theres a lot of rain and it almost developed into a hurricane and a thunderstorm is rain with lightning and thunder but not that bad like a tropical storm and a tornado is when there is a huge gust of win that is formed in a circle like shape and could cause damage to homes

Explanation:

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How many grams of SnO2 are required to produce 1.20x10^21 molecules of water?
Drupady [299]

Answer:

  • <u>0.150 grams</u>

<u></u>

Explanation:

The balanced chemical reaction to obtain water from SnO₂ is:

  • SnO₂ + 2H₂ → Sn + 2H₂O

The mole ratio is:

          \dfrac{1molSnO_2}{2molH_2O}

Find the number of moles equivalent to  1.20× 10²¹ molecules of water, using Avogadro's number:

         1.20\times 10^{21}molecules\times \dfrac{1mol}{6.022\times 10^{23}molecules}=1.9927\times 10^{-3}moles

From the mole ratio, the number of moles of SnO₂ are half the number of moles of water. That is:

  • 0.0019927 moles / 2 = 0.00099635 moles of SnO₂

Use the molar mass of SnO₂ to convert the number of moles to grams:

  • molar mass of SnO₂ = 150.71g/mol
  • mass of SnO₂ = 0.00099635mol × 150.71 g/mol = 0.150 grams.

The answer must be reported with 3 significant figures.

8 0
3 years ago
During a laboratory experiment, you discover that an enzyme-catalyzed reaction has a ∆g of -100 kcal/mol. if you double the amou
Debora [2.8K]

The doubling the amount will change the gibbs free energy as it is an extensive property which depends upon the the amount of the substance


However as asked in question the DeltaG has unit of kcal /mol

So we have already defined the amount of substance to be one mole this means the value per mole will be same irrespective of the amount taken as we are reporting it for a fixed one mole of a substance

Hence answer is

-100 kcal/mol


4 0
3 years ago
Read 2 more answers
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topjm [15]
Vacuole - Stores Nutrients and Water.
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Chloroplasts - allows plant cells to trap light energy.
Cell Membrane - Controls which substances enter or exit a cell.
Cell Wall - Provides strength and Support for plant cells.
Hope I helped!

6 0
3 years ago
If you have 3.8 grams of NaCl, how many moles of NaCl do you have?
Andre45 [30]
You will have 0.06502087426717999 moles of NaCl with 3.8 grams. 1 gram= 0.0171107563861
6 0
3 years ago
Which of the following is a renewable resource?
Sergeeva-Olga [200]
Answer: A wood
I hope this helps you
5 0
3 years ago
Read 2 more answers
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