Answer:
the reactivity and the valence electrons
Explanation:
the reactivity of the elements would have played a significant role in why such elements were grouped together. the number of valence electrons dictates how reactive an element is - the less valence electrons the more reactive it is. the column, group 1 in which these elements are put together in, show that each of the elements have 1 valence electrons and are therefore reactive.
you can go on to further explain what valence electrons are, explain what the group numbers are associated with the valence electrons and how valence electrons effect reactivity. further this, talk about how the three elements have the same number of valence electrons and therefore were grouped together
Answer:
Explanation:
according to balance chemical equation
3 A2 moles produced 2 moles of A3B
so 12 moles A2 will produced moles of A3B= 12*2/3=24/3= 8
therefore 12 moles of A2 produced 8 moles of A3B
Impartial is the word that you want to use
We classify them as follows:
1. 1 mol NaCl (s) à 1 mol NaCl(l)
C Molar heat of fusion; endothermic
2. C4H10 O(l) à C4H10O (g)
B Molar heat of vaporization; endothermic
3. H2O(g) à H2O (l)
D Molar heat of condensation; exothermic
4. 1 mol NaCl(s) + 3.88 kJ/molà 1 mol NaCl(aq)
A Molar heat of solution; endothermic