A piece of copper metal is placed into a solution of zinc nitrate.

Aluminium does not corrode in a normal atmosphere because: a) Aluminum is unreactive with oxygen b) The reaction with oxygen has too high and activation energy.

Under what condition is the OH^ - ion concentration in water expected to be zero? A. In a solution of strong acid B. In a solution of strong base C. In a solution of weak base D. never

If 41grams of water at 24°C absorbs 2208 J of heat energy, what will be the final temperature of the water?

Is luster a physical or chemical property

A is a continuous loop of moving air or liquid that transfers energy.

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?

Which method will correctly determine whether the forces on an object are balanced or unbalanced? A. Multiply the forces in the horizontal direction by the forces in the vertical direction. B.

Carbon is found in all known forms of life. Which statement best describes why carbon is uniquely suited to forming macromolecules such as those found in living organisms? A. Carbon forms large compounds that are not chemically reactive. B.

Name a type of asteroid and give a description.