A B Which of the statements below are true of the substance represented in the diagram? O a The substance in container C exhibits a greater amount of kinetic energy than the substance in container A. O b Container B has the highest number of particles. The kinetic energy between the particles in container B is greater than the kinetic energy in container C. O d The particles in container B are moving at a greater speed than the particles in container C.

Which of the following best describes the system depicted in the diagram? Mixture of elements Element Compound Mixture of compounds

For each box, examine the blocks attached to the balances. Based on their positions and sizes, determine which block is more dense (the dark block or the lighter-colored block), or if the relative densities cannot be determined. (Think carefully about the information being shown.)

Gaseous butane (CH;(CH,),CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) and gaseous water (H,O). If 27.7 g of water is produced from the reaction of 56.95 g of butane and 114.1 g of oxygen gas, calculate the percent yield of water. Be sure your answer has the correct number of significant digits in it.

Which of the following is best characterized as a heterogeneous mixture?  Group of answer choices   (a) Air (b) Sandy Dirt (c) An aqueous solution of NaCl (d) Electrum (an alloy of gold and silver) (e) Clear Diamond

A student adds 15g of baking soda to 10 g of acetic acid in a beaker. A chemical reaction occurs and a gas is given off. After the reaction, the mass of the products remaining in the beaker is 23g. Has mass been conserved in this reaction? Explain

A chemist has a 19.50 g sample of drinking alcohol (ethyl alcohol). What is the volume of the sample?What additional information does the chemist need in order to calculate the volume?

Copper wire has a diameter of 2.00mm.  What length of this wire containes 1.00 mol copper?

give a particulate-level explanation of why ice (solid water) is less dense than liquid water?

A standard aspirin tablet contains 325 mg of aspirin, which has the molecular formula C9H8O4. How many miles and molecules of aspirin are in 1 tablet?