What might be a way to demonstrate the concept of the difference between mass and weight by working with laboratory tools such as a triple beam balance and a spring scale

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

Ineed the answer to question 1 , i’m desperate

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2