La investigates while objects are attracted by a magnet. She losts a paper clip, a crayon, and a nal. She holds a magnet two centimeters away from the object being tested. Each time she tests an item, she uses a different magnet in what we did she make mistake setting up her investigation?
She should have tested a total of 10 tems
She should have used the same magnet in each trial
She should have tested only one tom in her investigation
She should have had the magnet a centimeter away from each item.

the electrical  conductivity  of asolution  of an electrolyte is measured by determining the resistance of thesolution  between two flat or cylindrical electrodes separated by a fixed distance.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error