How to figure out if a reaction is exothermic or endothermic?

Based on the graphs below, which of the following substances has the highest specific heat capacity? Assume each experiment began with 200 g of the substance at 100°C mixed with 500 g of water at 20°C.

How many grams of water can be produced when 8.73 moles of benzene react with excess oxygen?

Class science What is the phase of the Moon when the Moon sits between the Sun and the Earth? dark side of the Moon towards Earth Question 21 options: Gibbous Moon Crescent Moon Full Moon New Moon 1 question only

B. How many oxygen atoms are on the Reactants side h2+02

The transfer of energy in fluids or gases is:

Zn (s) + cu2 + (aq) →zn2 + (aq) + cu (s). part a under standard conditions, what is the maximum electrical work, in joules, that the cell can accomplish if 51.0 g of copper is plated out?

13 This word describes the circulatory system that provides nutrients and oxygen to living cells of the body.

Write the outer electron configuration for the group 15 element in the fourth period.

Describe the relationship between transmittance and the absorbance?

Are the following statements true or false? A. Two pi bonds comprise a double bond. B. Bonds formed from atomic p orbitals are always sigma bonds. C. Side-to-side overlap results in a bond with electron density above and below the bond axis. D.