Water has a heat capacity of 4.184 J/g °C. 19 50 g of water has a temperature of 30°C and a plece of hot copper is added to the water causing the temperature to increase to 70°C. What is the amount of heat absorbed by the water?
O 8368 J
-6276
O 6276 J
O-8368J

Select the correct answer. you have a nightlight plugged into an outlet in the hallway, which uses 3.5 watts when plugged in. if the house circuit provides 120.0 volts, what is the current through this bulb?

Which terms are used to identify pure substances

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u. s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?