Question 21 2 pts
(02.04 MC)
How does a change in temperature affect the rate at which a lollipop dissolves in water? (2
points)
O Changing the temperature of water should have no effect on the rate at which the lollipop dissolves.
O Decreasing the temperature of water increases the surface area of the lolipop, making it more
O Increasing the temperature of water decreases the rate at which the lollipop dissolves.
O Increasing the temperature of water increases the speed at which the lollipop dissolves.
soluble.

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

What is the standard unit of measure for acceleration?

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays