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Contact [7]
2 years ago
7

_____________ can be described as the ‘skin’ on the surface of a liquid due to its cohesive forces.

Chemistry
2 answers:
zysi [14]2 years ago
8 0
Surface tension




Explanation- Surface tension could be defined as the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.
Dmitrij [34]2 years ago
4 0

Answer:

surface tension

Explanation:

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A carbon molecule that has a different arrangement of atoms is known as a/an
maw [93]
The correct response I believe is A. Isomer. If a carbon molecule possess more than one arrangement of how its atoms can be arranged, those other arrangements are known as isomers.
3 0
3 years ago
What type of radioactive decay will the isotopes 13B and 188Au most likely undergo?
scoundrel [369]

Answer:

b. Beta emission, beta emission

Explanation:

A factor to consider when deciding whether a particular nuclide will undergo this or that type of radioactive decay is to consider its neutron:proton ratio (N/P).

Now let us look at the N/P ratio of each atom;

For B-13, there are 8 neutrons and five protons N/P ratio = 8/5 = 1.6

For Au-188 there are 109 neutrons and 79 protons N/P ratio = 109/79=1.4

For B-13, the N/P ratio lies beyond the belt of stability hence it undergoes beta emission to decrease its N/P ratio.

For Au-188, its N/P ratio also lies above the belt of stability which is 1:1 hence it also undergoes beta emission in order to attain a lower N/P ratio.

8 0
2 years ago
Consider the equilibrium: HCOOH(aq) + F-(aq) <----> HCOO-(aq) + HF (aq) Given that the Ka of HCOOH = 1.8 x 10-4 and the Ka
Aleks [24]

Hey there!:

K = Ka * Kb / Kw

Ka = 1.8*10⁻⁴

Kb = 10⁻¹⁴ / 6.8*10⁻⁴

K =  1.8*10⁻⁴ * ( 10⁻¹⁴/ 6.8*10⁻⁴ ) * ( 1 / 10⁻¹⁴ )

K =  = 1.8 / 6.8

K = 0.265

Answer A

Therefore:

K is less than on the forward reaction is not favorable .


Hope That helps!

8 0
3 years ago
Balance the following reaction. Choose "blank" if no coefficient is needed.
coldgirl [10]
The  equation  is balanced   as  follows
Mgcl2 +2AgNo3 -->2Agcl +Mg(No3)2
from  equation  above 1 mole of  MgCl2  reacted  with   2  moles  of  AgNo3  to  form 2 moles  of  AgCl2  and  1 mole  of  Mg(NO3)2
when  balancing  equation   the  number  of  atom  of element  should  be the  same  on  each  side  of  equation.
6 0
3 years ago
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Using internet resources, describe the ways radio waves are used on Earth. How do radio telescopes help advance our knowledge of
sammy [17]

Answer: they help advance by being able to see clearly and being able reduce its seeing

Explanation:

3 0
2 years ago
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