22 and 23 questions
C
A burning candle is an example of a A) endergonoc reaction, B) complete reaction, C) exeegonic reactions, D) covalent reaction
C
Covalent and ionic bonds differ in that... A) covalent binds are more permanent, B) covalent binds are much less common, C) ionic bonds don't involve the sharing of electrons, D) ionic bonds are electrically by nature
B
How many atomic shells are completely filled for chlorine ion Cl- (Cl, atomic number 17)? A) 2, B), C) 17, D) 4
C
How many electrons are shared in a single Covalent bond? A) 1, B) 6, C) 2, D) 4
C
How many miles of sugar are required to make 4L of a saturated solution of sugar having. Concentration of 0.6 mole per liter? A) 1.2 mol, B) 1.8 mil, C) 2.4 mol, 0.6 mol
C
If magnesium ions have a 2+ charge and oxygen ions have a 2- charge, the compound of magnesium oxide is A) MG4O2, B) MG2O2, C) MgO, D) Mg2O4
B
Steel is not listed in the periodic table because... A) it is merely an isotope of iron, B) it is a mixture of different elements, C) it is a compound, D) Wrong! Steel is listed in the periodic table
C
The alkali metals tend to form 1+ ions while alkali earth metals metals tend to form 2+ ions because... A) alkali metals are less massive, B) this is a random occurance, C) the charges of these ions corresponds to the number of valence electrons that may be lost, D) the ion and atoms forms is always equal to the wrought number
D
To calculate the amount of solute in a solution, we need to know the... A) masss and density of the solution, B) density and concentrated of the solution, C) volume of the solvent and concentration of the solution, D) volume and concentration of solution
D
What type of chemical bind would you expect between two neon atoms (Ne, atomic number 10)? A) covalent, B) ionic, C) metallic, D) none of the above
A
What type of chemical bond would you expect between a calcium atom (Ca, atomic number 20) and a chlorine atom (Cl, atomic number 17)? A) ionic, B) nonpolar covalent, C) metallic, D) polar convalent
A
When a solution is concentrated, A) large amounts of solute are dissolved in solvent, B) large amounts of solvent are dissolved in solute, C) so much solute has been added that the solution is about to solidify, D) almost all of the water has been taken out