Answer:
Arrhenius Base
Explanation:
"NaOH is an Arrhenius base because it dissociates in water to give the hydroxide (OH-) and sodium (Na+) ions. An Arrhenius acid is therefore any substance that ionizes when it dissolves in water to give the H+, or hydrogen, ion. ... Acids provide the H+ ion; bases provide the OH- ion; and these ions combine to form water."
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Answer:
Explanation:
Hello,
In this case, for us to compute the absorbed heat, we apply the following equation:
Whereas we use the mass, specific heat and temperature change for the piece of aluminium, thus, we obtain:
It is positive as the heat is entering, therefore the temperature raises.
Best regards.
Answer:
Melting
Explanation:
From solid to liquid, the change of state happening is the melting process. The kinetic energy of the particles that makes up the solid is increased and it allows the liquid to flow.
- A solid is a fixed mass with static molecules.
- When thermal energy is added, the kinetic energy increases.
- The kinetic energy of the particles increases and they vibrate about their fixed point in solids.
- This eventually breaks the structure and liquid which begins to flow forms.
This is a melting process.
Answer:
2
Explanation:
it has a total of 17 valence electrons
