What is always conserved in a chemical reaction? (3 points) mass is always conserved in a reaction. energy is always conserved in a reaction. mass and energy are both conserved. nothing is always conserved in a reaction.

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

Summarize possible ways in which phases of matter could combine to form a solution.

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1