During chemistry lab, mrs. black’s students placed an antacid tablet in a zip lock bag. they recorded the mass of the tablet in the bag. then they carefully added 50 grams of water and quickly sealed the bag. the tablet began to fizz and soon disappeared. the bag was filled with gas and it felt cold to the touch.
what type of change occurred in the bag and how can you support your answer?
a) it is a physical change because the tablet dissolved.
b) it is a physical change as evidenced by change in temperature.
eliminate
c) it is a chemical change due to the change in temperature and gas production.
d) it is a chemical change because the tablet dissolved and the temperature of the liquid dropped.

It;s a physical change because the tablet dissolved and it made the water cooler

The incorrect choice is the last one:

In the Leucipo and Democritus atomic model, electrons had negative charges.

Explanation:

The translation of the question is:

Choose the incorrect statement. *

Matter is everything that has mass and occupies volume.Mass and weight are different quantities. Mass is a measure of how much matter an object has, and weight is a measure of the gravitational pull force suffered by the object.Dalton's atomic model has similarities to the atomic model described by Leucipo and Democritus. Dalton thought that atoms of the same element could not combine, as they developed mutual repulsion.In the Leucipo and Democritus atomic model, electrons had negative charges.Solution

The last statement is false because Leucipo and Democritus thought that the atom was an indivisible particle. This is, they did not think there were subatomic particles, such as electrons. Furthermore, the idea of a particle with a negative charge was developed much time (centuries) later.

As for the other statements:

Matter is everything that has mass and occupies volume: this is the current definition of matter; for instance, wood, air, atoms, have mass and occupy volume. Thougths, feelings do not have either mass or occupy a volume, they are not matter.Mass and weight are different quantities. Mass is a measure of how much matter an object has, and weight is a measure of the gravitational pull force suffered by the object. Indeed, the mass is determined by the number of atoms of the substance, but weight is the force of attraction from Earth (or other planet, if the object is in other planet). Mass does not change with the location; weight does.Dalton's atomic model has similarities to the atomic model described by Leucipo and Democritus: sure. This is a hystorical question. Leucippus and Democritus were two Greek phylosophers who believed that the matter was formed by tiny solid particles, the atom.Dalton thought that atoms of the same element could not combine, as they developed mutual repulsion. In the times of Dalton, when he developed the law of multiple proportions, atoms of a same kind were thought to repel each other.