A gas is allowed to expand, at constant temperature, from a volume of 1.0 L to 10.1 L against an external pressure of

0.50 atm. If the gas absorbs 250 J of heat from the surroundings, what are the values of q, w, and a

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The unit of measure "mL" describes what property of a substance

Significant figures are an indicator of the certainty in measurements true or false?

If different groups of scientist have access to the same data, how can they draw different conclusions? Scientists manipulate data to fit their hypotheses, which results in different conclusions.

Consider a liquid in a piston apparatus that is at equilibrium with the vapor phase. in which direction should the piston be moved to decrease the number of molecules in the liquid phase?

The weight percent of concentrated HClO4 (aq) is 70.5% and its density is 1.67 g/mL. What is the molarity of concentrated HClO4

Why does conduction occur in solids and liquids easier compared to gases? Because the particles in gases are closer together and move slower Because the particles in gases are farther apart and move faster.

Write a balanced equation for the combustion of gaseous methane (CH4), a majority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.

Pedro listed characteristics of two types of protists in a chart. Two Groups of Protists X Y Often multicellular Are usually autotrophic Include euglenoids Are heterotrophs Reproduce using spores Include different molds Which headings best complete

Which of the following is a characteristic of nonmetals? a. nonmetals are often shiny and hard. b. nonmetals are often malleable. c. Nonmetals do not conduct electricity. d. nonmetals are often ductile.

How does a change in temperature affect the kinetic energy of the particles in a reaction?