One of the first properties you notice about an unknown mineral, and one of the least reliable in terms of identification, is which of the following?

a. color

b. streak

c. hardness

d. luster

Your task is to measure the amount of energy evolved during the combustion of some hydrocarbon. Which of the following would be the ideal technique for this experiment? a. bomb manometry b. coffee-cup calorimetry c. bomb calorimetry

Which of the following is the most basic level of organization that can perform functions like converting food into energy? Atoms Cells Molecules Tissues

7. HgO → Hg + O2 moles of oxygen? 0.5 moles of HgO decompose to produce how many moles of oxygen

Which changes of state result in a decrease in the kinetic energy of the particles?

Which of the following amino acids have more than one asymmetric center? Check all that apply. Serine Isoleucine Proline Leucine Tryptophan Arginine Glutamate Threonine Lysine Tyrosine Glycine Alanine Asparagine Phenylalanine Histidine Valine

What volume of product is produced when 20.0 Mg of liquid hydrogen reacts with excess liquid oxygen in a rocket propellant reaction? Gas is formed 101.3 to 5 kPa and 40.0 °C

Where the use of energy is concerned (in scientific sense), when is work done?

Which two objects would experience the greatest gravitational force between them?

Does a solution have to involve a liquid? explain.

Do electrons have more or less mass than neutrons