How does the strength of the forces that hold the basic particles of a substance together relate to the temperature at which the substance changes
state?
OA. Weaker forces between particles means the substance boils at a
higher temperature.
OB. Stronger forces between particles means the substance boils at a
OC. Stronger forces between particles means the substance melts at a
OD. Stronger forces between particles means the substance boils at a
higher temperature.
lower temperature.
lower temperature.

answer: c. the experiment shows that the red substance experienced a chemical change.

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg

since electrons are negative the answer is neagtaive