Water molecules can react with each other. When they do, a solution is formed that A. dissociates to hydrogen gas and oxygen gas.
B. contains H3O+ and OH-ions that will conduct electricity slightly.
C. contains H30* and OH- ions but will not conduct electricity.
D. ionises to form H3O+ ions only.

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este

answerca air mass;