Experiment: Group 1 drinks 500 mL of coffee a day, group 2 drink 500 mL of tea a day, group 3 is a control group. At the end of 60 days all participants' blood pressure is tested. What considerations do the researchers need to take in order to ensure this experiment is fair?​

yes

ya te ayud espera

i believe the answer is three water molecules

rosa was looking for patterns to predict the products of chemical reactions. she recorded three similar decomposition reactions in the table.she should record 2licl + 3o2.

in the last row of the table. it is the thermal decomposition of chlorate lithium, hence, she should record these products as: lithium chloride ( 2licl ) and oxygen ( 3o2 )   2 > 2 licl + 3o2.