The stronger intermolecular force has been found in glycerol with high viscosity as it has a larger molar mass. Thus, option A is correct.
The viscosity has been defined as the resistance of the fluid to the deformation. The viscosity has been dependent on the molar mass and intermolecular force in the compounds.
The stronger intermolecular force and molar mass tend to have more resistance to the deformation and thus have more viscosity.
The intermolecular force present in glycerol and water is hydrogen bonding. The molar mass of glycerol has been higher than water, this tends to have more resistance and viscosity.
Thus, glycerol has high viscosity as it has a larger molar mass. Thus, option A is correct.
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Answer:
1. Aluminum oxide
2. Sodium chloride
3. Magnesium oxide
4. Calcium Chloride
Explanation:
Ionic compounds with only 2 elements all end with "ide" Use the full name of the element listed first and the second element with ide. Ex: Chlorine would become chloride.
Answer:
b. Mg (s) + 2HCl (aq) --> MgCl2 (aq) + H2
Explanation:
A subscript applies only to the element it is attached to while coefficients apply to all elements in a compound.
"a" has 1 atom of each element on the left but 2 Cl on the right.
"c" has 2 Mg, 1 H, & 1 Cl on the left but 1 Mg, 2 H, and 2 Cl on the right.
"d" has 2 atoms of each element on the left but only 1 Mg on the right.
"b" is the only answer with equal numbers of atoms on the right and left sides of the equation.
According to the reaction equation:
CaF2(s) ⇄ Ca2+(aq) + 2F-(aq)
So the Q expression will be = [Ca2+][F-]^2
and we will neglect the [ CaF2] as it is solid
so, by substitution:
when we have [Ca2+] = 0.01
and [F-] = 0.015
Q = 0.01 * (0.015)^2
= 6.3 x 10^-2
by comparing Q value which is 6.3 x 10^-2 and Ksp value which is 1.8 x 10^-5
So, we can see that Q > Ksp
-that means precipitation will form as ion concentration are greater than
equilibrium concentration So, the reaction will proceed in reverse to achieve
equilibrium . and the solution will be then supersaturated.
Answer:
Explanation:
Total cards available = 8
Probability of drawing Blue = 5/8
Probability of drawing Yellow = 3/8
Step 1
Probability of drawing blue card first = 5/8.
Since, the first drawn blue card is NOT replaced; Total card available = 7
Then, probability of drawing blue card again = 4/7.
Finally, the probability of drawing TWO blue cards = 5/8 × 4/7
= 5/14.
So, the number belonging to the green box is 5.