Silicon-30 contains 14 protons. It also contains ?
Answers
Since the atomic mass (30) is equal to the number of protons + the number of neutrons
in an equation, it would be 30=14+x
x=16
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The normal boiling point corresponds to the temperature at which both the liquid and gas are under the standard atmospheric pressure of 1 atm.TRUE FALSE
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Explain why neon is monatomic but chlorine is diatomic.
A covalent bond forms a. when an element becomes a noble gas. b. when atoms share electrons. c. between metals and nonmetals. d. when electrons are transferred from one atom to another.
The reaction is exothermic because heat was released by the reaction.
The reaction is endothermic because heat was released by the reaction.
The reaction is exothermic because heat was taken in by the reaction.
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Answer:
The reaction is exothermic because heat was released by the reaction.
Explanation:
'exothermic' means a reaction released heat over the time of the experiment.
'endothermic' means that the reaction released cold over the experiment.
b. sugar.
c. water.
d. vinegar.
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Answer:
To answer, all living organisms contain carbon-based compounds, which classifies them organic.
Simply, carbon dioxide, is an example of an inorganic compound since it does not contain both carbon and hydrogen. Alternatively, one molecule of carbon dioxide contains one atom of carbon and two atoms of oxygen.
Answers
Answer:
It could react with the present hydride or hydroxile ions.
Explanation:
Hello,
One the main features of buffers, is that when the acid-base conjugates are formed they could react with the added or
in order to keep the pH as constant as its buffer capacity allows it.
Best regards.
Final answer:
A buffer solution maintains a stable pH primarily through the action of its acid-base conjugate pair reacting to counter changes, a property known as buffer capacity. High concentrations increase buffer capacity, allowing more acid or base to be neutralized. However, exceeding the buffer capacity can lead to pH changes.
Explanation:
The pH of a buffer solution doesn't greatly depend on the concentrations of its acid-base conjugate pair as the buffer's job is to keep the pH relatively constant. This is achieved by having appreciable amounts of its weak acid–base pair in the solution. If a strong acid or base is introduced into the system, the buffer pair reacts to counteract these changes. This is called buffer capacity.
For instance, consider a buffered solution composed of acetic acid and its conjugate base, acetate. The system can resist changes in pH upon addition of small quantities of an acid or base. This is because acetic acid and acetate can consume small additions of hydrogen ions (from an acid) or hydroxyl ions (from a base), keeping the overall pH stable.
When concentrations of the acid-base pair are high, the buffer capacity increases and hence more amounts of acid or base can be neutralized without a significant change in pH. However, there are limits to this capacity. If excessive amounts of acid or base are added, they may exceed the buffer's capacity, and its acid/base pairs will be either largely consumed or overrun, leading to changes in pH.
Learn more about Buffer Capacity here:
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The answer is solid.
Solid, physical state of matter is associated with the strongest attractive forces between particles (molecules, ions, or atoms).
Among the other states of matter that is liquid, gas; solid is the one that is having strongest attractive forces between particles (molecules, ions, or atoms).