Answer:
The heavier isotope is 48.2 % (option d)
Explanation:
Step 1: Data given
Atomic weight of silver = 107.868 amu
Isotopes of silver:
107Ag = 106.904 amu
109Ag = 108.905 amu
Step 2: Calculate the percentages
107.868 = 106.904 * x + 108.905 *y
x+y = 1 ⇒ x = 1 - y
107.868 = 106.904 (1 - y) + 108.905*y
107.868 = 106.904 - 106.904y + 108.905y
0.964 = 2.001y
y = 0.4818
x = 1 - 0.4818 = 0.5182
Percentage 109Ag = 48.18 %
Percentage 107Ag = 51.82 %
The heavier isotope is 109Ag. Its percentage is 48.18 ≈ 48.2 %
Basically the sugar breaks down until it’s eventually evaporated and spreads to different parts of the water solution and while it’s spreading the chemicals and the flavors in the sugar are going into the molecules and atoms in the water and mixing to make the water solution taste sweet just like sugar. So i would say it would be a physical change not a chemical change.
W*V i believe because it comes down to this :
I is the current, W is wattage V is volts and the * is the thing that represents the Amperes (i’m not 100% but this is my best)