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Evgesh-ka [11]
3 years ago
11

WILL GIVE BRAINLIEST, Which of the following would have the greatest amount of surface area?

Chemistry
1 answer:
Elodia [21]3 years ago
5 0

Answer:

C. 1 cubic foot of loose sand

Explanation:

For many  objects having equal volume , surface area will be maximum

of the object which has spherical shape .

But when a sphere is broken into tiny small spheres , total surface area of all the small spheres will be more than surface area of big sphere .

Hence among the given option , surface area of loose sand will have greatest surface area . Loose sand is equivalent to small spheres .

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Wenzhou prepares 200 mL of a solution of SnCl4in which the concentration ofchloride ions is 0.240M.a) What is the molarity of th
nalin [4]

Answer:  a) 0.06 M

b) 3.13 grams.

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Molarity=\frac{moles}{\text {Volume in L}}

Moles of  Cl^-=Molarity\times {\text {Volume in L}}=0.240\times 0.2L=0.048moles

The balanced reaction for dissociation will be:

SnCl_4\rightarrow Sn^{4+}+4Cl^{-}

Thus for 4 moles of Cl^-, there is 1 mole of SnCl_4

Thus moles of SnCl_4=\frac{1}{4}\times 0.048=0.012

Molarity of SnCl_4=\frac{moles}{\text {Volume in L}}=\frac{0.012}{0.2L}=0.06M

Thus the molarity of the  SnCl_4 solution = 0.06 M

b) Mass of SnCl_4= moles\times {\text {Molar mass}}=0.012mol\times 260.522g/mol=3.13g

Thus mass of  SnCl_4 Wenzhou use is 3.13 grams.

7 0
3 years ago
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17.
yanalaym [24]

Answer:

ammonia gas and hydrogen chloride gas.

3 0
3 years ago
Questions and answers about isotopes grade 8 I need this for a PowerPoint exam projects
DanielleElmas [232]

Answer:

Question: A patient is diagnosed with a damage in the thyroid gland.

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Option:

A. Copper-64

B. Cobalt-60

C. Carbon-14

D. Iodine-131

Correct answer : D. Iodine-131

Question: Give the definition of isotopes.

Answer : Isotopes is the atoms of elements with the same proton number but different number of neutrons.

3 0
2 years ago
The water behind a dam has potential energy that can be converted to kinetic energy to turn a turbine
Savatey [412]
This is true because the water would have gravitational potential energy that is caused by the water being held back by the dam and the water wanting to flow down.

This can be converted into kinetic energy when given the chance to, such as having a turbine on the dam.

Hope this helps! :)
6 0
3 years ago
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Does changing the number of neutrons change the identity of the element you have built ?
worty [1.4K]

Answer:

If you change the number of neutrons somehow, nothing will happen because it carry's no charge at all.

Explanation:

4 0
4 years ago
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