Element X reacts with chlorine to form a compound with formula XCl2. The oxide of element X is basic. Element X is
A) Ca
B) Rb
C) P
D) H
E) Al
2007-07-24 22:13:20 · 7 answers · asked by ~daweed~ 3 in Science & Mathematics ➔ Chemistry
hi ! :o)
2007-07-25 03:35:40 · answer #1 · answered by ~jewel~ 2 · 0⤊ 7⤋
Reply is Ca3X2. Na reacts with X and varieties Na3X. That means that Na has valancy 1 and X has valancy three, so three atoms of Na reacts with 1 atom of X to entire its valancy. Accordingly they type the ionic compound Na3X. In a similar way, we know that Ca has valancy 2. So the ionic compound with X will have to be Ca3X2, which shows that X has valancy three.
2016-08-04 07:02:01 · answer #2 · answered by revering 1 · 0⤊ 0⤋
Absolutely Ca,
A) Ca
forming CaCl2
2007-07-24 22:25:48 · answer #3 · answered by la montée 4 · 4⤊ 0⤋
the answer is (A) i.e calcium coz it reacts to form calcium chloride .ca is in group two called the alkaline earth metals
2007-07-24 22:51:56 · answer #4 · answered by kenyan boi 1 · 2⤊ 0⤋
CaCl2
2007-07-24 22:50:55 · answer #5 · answered by Akshay B 2 · 1⤊ 0⤋
Calcium fits all of this.
2007-07-24 22:19:55 · answer #6 · answered by Gervald F 7 · 0⤊ 0⤋
ca ...its vry easy ques
2007-07-24 22:22:14 · answer #7 · answered by Anonymous · 0⤊ 0⤋