An atom of aluminum in the ground state and an atom of gallium in the ground state have the same
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If will reacts with
, the formula of the compound formed is
.
Ionic compounds are neutral compounds made up of positively charged ions called cations and negatively charged ions called anions.
Barium is a metal element and Nitrogen is a non-metal element, so they form an ionic compound. To make the formula of an ionic compound, first, we need to see the valence of the atoms, that is, how many electrons it can donate or it has to gain to have 8 electrons in the valence layer (octet rule).
Barium is in family 2, so it has two electrons in its valence layer, so it must donate these two electrons; Nitrogen is in family 15, so it has 5 electrons ins its valence layer and must gain 3 electrons.
Writing the ions they must form:
First came the cation (positive charge), then the anion (negative charge), and the charges must change between them, without the signal, and will inform how many atoms are necessary for which element:
Hence, If will reacts with
, the formula of the compound formed is
.
Learn more about the ionic compound here:
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Answer: There will be 41382 J energy must be absorbed by 45.0g of water to increase its temperature from to
.
Explanation:
Given: Mass = 45.0 g
Initial temperature =
Final temperature =
Formula used to calculate heat energy is as follows.
where,
q = heat energy
m = mass of substance
C = specific heat = (here, for water)
= initial temperature
= final temperature
Substitute the values into above formula as follows.
Thus, we can conclude that there will be 41382 J energy must be absorbed by 45.0g of water to increase its temperature from to
.