True/false: An object acceleration depends on its mass and force. Need help ASAP

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

This question is about electrolysis. metal spoons can be coated with silver. this is called electroplating. suggest one reason why spoons are electroplated?

Which of the following is an indication that a substance has undergone a chemical change? a. no new product has been formed. b. the color of the substance has not changed. c. the original constitute has not changed. d. the molecular structure has changed.