How many hydrogen atoms are there in the molecule H2SO? A. 1
B. 3
C. 4
D.2
please help, brainliest to the first person who is correct , i’ll give another 25 points if this is right

D. 2 I think, not 100% sure.

d. temperate deciduous forest

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