Select all that apply.
Which of the following would increase the conductivity of a connecting wire?
O increase the diameter of the wire
increase the length of the wire
decrease the temperature of the wire
switch from steel wire to gold wire

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

can you list the answers so i can answer

the answer is 0.42 is that is an option. this question provides no info