Exothermic and Endothermic Reactions

JavaScript isn't enabled in your browser, so this file can't be opened. Enable and reload.

Which statement about bonding is correct?

1 point

A. Bond breaking is endothermic and requires energy.

B. Bond breaking is endothermic and releases energy.

C. Bond making is exothermic and requires energy.

D. Bond making is endothermic and releases energy.

Clear selection

Which processes are exothermic?

1 point

Clear selection

When some solid barium hydroxide and solid ammonium thiosulfate were reacted together, the temperature of the surroundings was observed to decrease from 15 °C to –4 °C. What can be deduced from this observation?

1 point

A. The reaction is exothermic and ∆H is negative.

B. The reaction is exothermic and ∆H is positive.

C. The reaction is endothermic and ∆H is negative.

D. The reaction is endothermic and ∆H is positive.

Clear selection

Which process is endothermic?

1 point

Clear selection

Which statement is correct for the enthalpy level diagram shown?

A. The reaction is exothermic and the products are more stable than the reactants.

B. The reaction is exothermic and the sign of the enthalpy change is positive.

C. The reaction is endothermic and the sign of the enthalpy change is negative.

D. The reaction is endothermic and the products are more stable than the reactants.

Clear selection

Which ionic compound has the most endothermic lattice enthalpy?

A. Sodium chloride

B. Sodium oxide

C. Magnesium chloride

D. Magnesium oxide

Clear selection

What can be deduced from this reaction profile?

A. The reactants are less stable than the products and the reaction is exothermic.

B. The reactants are less stable than the products and the reaction is endothermic.

C. The reactants are more stable than the products and the reaction is exothermic.

D. The reactants are more stable than the products and the reaction is endothermic.

Clear selection

Submit

Clear form

This content is neither created nor endorsed by Google. Report Abuse - Terms of Service - Privacy Policy

Forms