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blagie [28]
3 years ago
14

How does the size change when an atom forms a cation and when an atom forms an anion?

Chemistry
1 answer:
mario62 [17]3 years ago
8 0
<span>A cation is an atom that loses a valence electron. When a valence electron is released there is one electron less to create a repulsive force. The loss of a repulsive force will allow the atom to pull tighter together. An anion would therefore be larger in size due to increased repulsion of the valence electrons.</span>
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Suppose the boy skipped his lunch for a day how will the hormones from his pancreasls help his body to cope wwhen his blood suga
ivann1987 [24]

Answer:

The hormone glucagon secreted by the pancreatic cells cause the release of glucose from the body's storage.

Explanation:

The pancreas is an organ found inside the abdomen. This organ produces hormones such as:

  • Insulin
  • Glucagon
  • Somatostatin
  • Vasoactive intestinal peptide

Insulin and glucagon are considered primary hormones secreted by the pancreas.

Upon skipping a meal, leading to a drop in blood sugar levels, glucagon is secreted by the pancreas. This hormone then acts on the liver to stimulate the conversion of stored up glycogen present in the liver into glucose. This produced glucose is then released into the blood stream, availing the boy glucose for energy.

 

4 0
3 years ago
DDT was a hazardous:<br> a)insecticide<br> b)disease<br> c)industrial waste<br> d)weed killer
Y_Kistochka [10]
The answer I think is A
8 0
3 years ago
Read 2 more answers
The addition of which substance will decrease the solubility of AgNO3 in water?
sertanlavr [38]
3 is correct because the .1 moles of the NO3 will be better option to decrease the solubility of the Silver Nitrate.
5 0
3 years ago
Read 2 more answers
Explain why it is necessary to balance chemical equations in terms of maintaining equilibrium. How can you tell when a chemical
LUCKY_DIMON [66]

Answer:

See explanation.

Explanation:

Hello,

In this case, we say that chemical reactions are governed by the law of conservation of mass, which states that matter cannot be neither created nor destroyed by transformed, for that reason, we need to balance chemical reactions in order to ensure all the atoms to be in the same quantity at both reactants and products.

Moreover, equilibrium is defined as such condition at which the concentration of both reactants and products stop changing over the time so they become constant as well as their null reaction rate.

A widely acknowledged reaction is the HABER one which consists on the synthesis of ammonia by using elemental nitrogen and hydrogen:

N_2(g)+3H_2(g)\rightleftharpoons 2NH_3(g)

In such reaction, we have two nitrogens at both reatants and products and six hydrogens at at both reatants and products for us to obey the law of conservation of mass. Furthermore, as the time goes by, nitrogen reacts with hydrogen, nonetheless, they do not react indefinitely, they have a limit that is equilibrium, so their moles stop being consumed and remain unchanged as well as the produced moles of ammonia.

Best regards.

7 0
3 years ago
A gas has a volume of 50.0 cm3 at a temperature of -73°c. what volume would the gas occupy at a temperature of -123°c if the pre
vaieri [72.5K]

Boyle’s Law illustrates the inverse relationship of volume and pressure. It follows the formula  p1V1 = P2V2 , where P1V1 denotes initial pressure and volume  and P2V2 denotes values of pressure and  volume.

Now, let us work out for what is asked above.
a. if the pressure is doubled
50.0 p = V x 2p 
V = 50.0 p / 2p

= 50.0 /2

= 25.0 m^3 
b. if the pressure is cut in half
50.0 p = V x p/2 
100 p = V x p 
V = 100 m^3 
c. if the pressure is tripled
50.0 p = V x 3p 
V = 50.0 p / 3p

= 50.0 /3

=16.7 m^3 

<span> </span>

7 0
3 years ago
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