Aperson of mass 80 kg stands on earth's surface. what is his weight?

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Study the following reaction carefully. what classification should this reaction have? 4al + 3o2 2al2o3synthesisdecompositionsingle replacementdouble displacement

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.