International space station around earth at constant distance above earth surface which of the following claims about the energy of the station is true a. It has no energy because it is stationary

b. It has potential energy but does but does not have kinetic energy

c. It has kinetic energy but there’s not half potential energy.

d. It has both potential energy and kinetic energy.

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

b) nuclear ive learned that in a pedtrodic table