How much heat is required to heat 15g of water from 20°C to 70°F.? (the specific heat capacity of water is 4.184 J/g °C)

In a closed or isolated system , matter can not be created or destroyed. it can change forms but is conserved true or false

An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .