Heat always flows from cold objects to hot objects.

Reactions where the energy of the reactants is greater than the energy of the products are called _____________.

In an exothermic reaction, energy is being ________________.

Which metal below would be the best conductor of energy? The Specific Heat values are in the table.

How much energy will be released when 2.65 g of CH₃OH is combusted?

2 CH₃OH (L) + 3 O₂ (g) → 2 CO₂ (g) + 4 H₂O (g) + 5432 J

How many grams of water will be formed when 2564 J of energy is released?

2 CH₃OH (L) + 3 O₂ (g) → 2 CO₂ (g) + 4 H₂O (g) + 5432 J

Which of the following energy diagrams describes the reaction of silver and sodium chloride?

1250 J + Ag(s) + NaCl(aq) → Na(s) + AgCl(s)

Iron has a specific heat of 0.450 J/g°C. What is the mass of a piece of iron that absorbs 123.1 J of energy and has a temperature increase of 12.1 °C?

What tool can you use to measure the average kinetic energy of a sample?

Which metal would you expect to require the MOST energy to increase in temperature by 25°C?

(All samples are the same mass)

What is the specific heat of Titanium if 331.2 J causes a 55.1 g piece of the metal to increase in temperature from 21.0°C to 32.5°C?

Compounds can use energy to break which of the following?

A reaction is performed in a calorimeter. When 2.60 g of CaCl₂ is dissolved in 155 g of water at 22.4°C, the temperature of the water increases to 32.6°C. Calculate the amount of heat (q) transferred in this reaction.

A reaction is performed in a calorimeter. When CaCl₂ is dissolved in water at 22.4°C, the temperature of the water increases to 32.6°C. Is the dissolving of Calcium chloride an endothermic or exothermic process?

You grab a hot pan out of the oven with your bare hands. What will happen?

Dissolving Calcium Chloride in water feels warm causes an increase in temperature. The energy difference is 261.5 kJ. Which of the below is the correct balanced thermochemical equation?