A 18 g tortilla is burnt, it raises the temperature of a can of water with 2300 ml of water in it from 30 to 75 degrees Celsius. After it is burned the tortilla weighs only 9 g.

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)

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

What produces wave a)sound b) heats c)transfer of energy d)vibrations