You leave a piece of bread outside for a few days. it forms green and blue mold. it smells awful. a chemical change has occurred - true or false
explain you answer stating facts that support your answer.

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

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)