1) Which pairs of elements WONT form ionic compounds? CHOOSE:
(A) Sulfur & Oxygen (B) Sodium & calcuim
(C) Sodium & Sulfur (D) Oxygen & Chlorine
2)Which substances are NOT Most likely ionic?
(A) H2O (B) Na2O (C) CO2 (D) CaS (E) NH3 (F) SO2
3) CHOOSE the 2nd term that completes the relationship:
(A) Cow: Horse ; Ionic Bond:_ (Anion, Cation, chemical bond, Covalent Bond)
(B)Cl: Cl - ; Mg:_ ( (these are charges, not sunscript)Mg2+, Mg2-, Al3+, Mn)
2007-04-22 12:01:34 · 4 answers · asked by truckin_90 2 in Science & Mathematics ➔ Chemistry
(C) Pipe: water
Metal:_
A) ions
B)ionic bond
C) electricity
D)conductor
2007-04-22 12:29:14 · update #1
1) a: Sulfur and Oxygen, b: Sodium and Calcium, and d:Oxygen and Chlorine
2) a,c,e, and f
3a) covalent bond
3b) Mg+2
2007-04-22 12:06:53 · answer #1 · answered by Anonymous · 0⤊ 0⤋
1. (D) Oxygen & Chlorine because they are both nonmetals and nonmetals do not form ionic compounds. The other choices have 1 metal and 1 nonmetal.
2. (C) CO2 because the carbon forms covalent bonds with the oxygen molecules. They are both also nonmetals.
3a. Covalent Bond. A Cow and a Horse are animals but different ones. An ionic bond and covalent bond are bonds but different types of bonds.
3b. Mg2+. Cl- is an ion of Cl (it gains 1 electron to achieve stability of 8 electrons). Mg2+ is an ion of Mg (it loses 2 electrons).
2007-04-22 12:09:20 · answer #2 · answered by coconutty beanz xD 4 · 0⤊ 0⤋
1A. Electronegativity difference is too small.
2. A, C, E, F are all not ionic
3. Covalent bond. It has nothing to do with ionic bonding
Mg 2+
2007-04-22 12:06:54 · answer #3 · answered by reb1240 7 · 0⤊ 0⤋
There are 5 protons in Boron no matter the isotope or charge. 12g of water is less than the weight of a mole of water, and a mole of water = 6.02* 10^23 molecules of water. 1 mol water = 18g. 1.50 mol water = 27g.
2016-05-21 03:03:27 · answer #4 · answered by ? 3 · 0⤊ 0⤋