1
Which acid reacts with metals to produce hydrogen gas?
4
George is studying strong bases. He knows that strong bases completely dissociate in water. Which of the following is a strong base?
6
Julia is studying the prevention of corrosion by coating with a thin layer of another metal. She learns that tinning is used to coat steel with tin. What is the main application of tinned steel?
7
Quinn is studying bond energies. He calculates the energy change for a reaction using bond energies. If the reaction is exothermic, what is the relationship between bond energies?
8
Yara is learning about chemical equilibrium. She understands that equilibrium constants are used to describe the equilibrium position. What does a large equilibrium constant (K >> 1) indicate?
9
Nora is studying the Bronsted-Lowry concept. She knows that an acid is a proton donor. In the reaction: H2SO4 + H2O → H3O+ + HSO4-, which species is the acid?
10
Sam is studying the effect of temperature on reaction rate. He knows that increasing temperature increases the rate of reaction. Why does this happen?