Calculate the theoretical yield grams of CO2 based on using the 3.5 grams of nahco3 and record a grams to grams three-step conversation. ​

it's filtration, but this is an assumption so my apologies if i got this

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

d) a person who learns about the world by observing it.

explanation:

scientist are people who discover why and how things are done and made in the world.