Consider the unbalanced equation for the combustion of hexane:

2C6H14 (g) + 19O2 (g) →12CO2 (g) + 14H2O (g) Determine how many moles of O2 are required to react completely with 7.9 moles C6H14.

Which chemical formula corresponds to this structural formula? C6H6H6H2 C14H6 C6H12 C6H14

What is an example of turning chemical energy into light energy?

Which of the analogies below is a location-based analogy? A. tip : topple : : shove : tumble B. need : haircut : : desire : video game C. thermometer : nurse : : briefcase : lawyer D. bowling ball : bowling alley : : tennis ball : tennis court

In a dynamic equilibrium between the liquid state and the gas state, what is true about the rate of evaporation? a. greater than rate of condensation b. less than rate of condensation c. equal to rate of condensation d. cannot be determined.

Which of the following is a solution? Dirt An alloy Wood Plastic

Chemical bonds? A.) Combine compounds to form elements B.) Hold atoms together to form compounds C.) Are always covalent D.) Are always ionic

What is the smalles lt unit of copper that still maintained the characteristics of copper

Which terms identify types of chemical reactions? (1) decomposition and : sublimation (2) decomposition and synthesis (3) deposition and sublimation (4) deposition and synthesis

What element behaves MOST like magnesium (Mg) ? A) S B) Si C) Sn D) Sr

It was determined through analysis that a compound, sodium carbonate with a molar mass of 263 g/mol contained 68.4% water. determine the toilet number of water molecules in this hydrate