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Question 11.The charges on beta particles, alpha particles and gamma rays are _____ respectively.
Question 22.Which type of reaction is involved with nuclear reactors?
Question 33.Which particles are present in the nucleus of an atom?
Question 44.Cobalt-57 has a half-life of about 272 days. If a sample has an initial mass of 2.24 grams and undergoes decay until it has a mass of 0.140 grams, then how many half-lives passed?
Question 55.A 6.95 gram sample of radioactive nobelium-259 has a half-life of 58 min. How much is left after 2 hours and 54 minutes?
Question 66.Carbon-10 has a half-life of about 19 seconds. How many half-lives does it undergo in 2 minutes and 32 seconds?
Question 77.Gas can be turned into a plasma on Earth with the addition of:
Question 88.The phase change when a solid goes directly to a gas is called:
Question 99.At the melting point and boiling point what happens?
Question 1010.Which of the following equations is balanced?
Question 1111.Conservation of matter means that:
Choose the correctly balanced equation for the following reaction:
Sodium + water -> sodium hydroxide + hydrogen gas
Question 1313.What are the characteristics of a gas?
Question 1414.What is the most common state of matter in the universe?
Question 1515.Which state of matter has the highest density?
Question 1616.Which type of reaction always requires oxygen to be a reactant?
Question 1717.Which of the following is a double-replacement reaction?
Question 1818.Compound X is converted to elements A and B. Compound X has undergone a _____ reaction.
Question 1919.How is a mole ratio used?
Question 2020.Which of the following mole ratio is NOT appropriate to the equation 6CO2+ 6H2 O = C6 H12 O6+ 6O2?
Question 2121.Select the most suitable definition for stoichiometry.
Question 2222.What does it mean when the enthalpy change for a reaction is negative?
Question 2323.Enthalpy change is
Question 2424.When a bond forms, this is an example of
Question 2525.Which of the following is a chemical property of the element hydrogen?
Question 2626.The ability of iron to react to oxygen is an example of _____
Question 2727.Pure substances are further divided into elements and compounds. Which one best describes the rust found on a vehicle over time?
Question 2828.A piece of aluminum foil has a mass of 27 grams. About how many atoms does this contain?
Question 2929.Based on Avogadro's number, which of the following is NOT true?
Question 3030.A piece of copper wire contains 5 moles of copper atoms. What is its mass?
Properties of Matter Chapter Exam Instructions
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