How many moles of hydrogen gas (H2) would be produced from the reaction of 0.30 moles of water (H2O) and excess sodium? (Na)

Given unit: Answer unit: Solution:

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

Stage in which a typical star has completely stopped fusion