Community and indicate the required storage temperature by looking at its Gather 5 materials (foods/ medicines) found at home, in school and in
English 4
Activity 2. Where Do I Belong?
ontainer or package.
Food/
edicine
t Home
Storage
Required Food/
Medicine in
Tempera School
ture
1.
Required Food/
Storage Medicine in
Tempera the
ture Community
1.
2.
3.
4.
Required
Storage
Tempere
ture
2.
3.
4.
5.
5.
ity 3. Pro -Action ?​

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

since electrons are negative the answer is neagtaive

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.