Density is an intensive physical property that relates the mass of an object to its volume. Density, which is simply the mass of an object divided by its volume, is expressed in the SI derived unit g/mL for a liquid or g/cm³ for a solid. Most substances Part A expand or contract when heated or cooled, so the density values for a substance are temperature dependent. A particular brand of gasoline has a density of 0.737 g/mL at 25 °C. How many grams of this gasoline would fill a 16.0 gal tank (1 US gal = 3.78 L)? Express your answer to three significant figures and include the appropriate units. • View Available Hint(s) ? Value Units Part B A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 3.5 cm . Its mass is 1.3 kg. Calculate the density of the metal. Express your answer to two significant figures and include the appropriate units. • View Available Hint(s) HẢ ? Value Units

doug began preparing laboratory surface disinfectant from chlorine bleach. he put on a chemical resistant apron and gloves and then removed the bleach container from the special chemical cabinet. he carefully placed the container on the laboratory benchtop and began to add the chlorine bleach to distilled water. nearby workers began complaining of burning eyes. doug was reprimanded by the supervisor. Explain why.

You grab a soft drink bottle from your refrigerator. The contents are liquid and remain liquid even when shaken. You now remove the cover, and the liquid solidifies. Provide an explanation for this finding.

The process whereby chemical treatment is used to temporarily prevent decomposition is most completely defined as:   Disinfection Restoration Public health measures Preservation

Which renewable resource is destructive to ecosystems? O hydroelectric O solar O tides O wind

1. The toxicity of mercury depends greatly upon the formulation of the metal. Which of them (elemental, metal ion, or methyl-mercury) is more likely to be absorbed through the skin? Explain your answer.

27) The cycle of copper reactions illustrates important principles of chemical reactions. The cycle begins with elemental copper, which in a first reaction is oxidized to copper(II) cation. Copper(II) is then carried through different solid forms. In the last step, copper(II) cation is reduced, the copper metal is regenerated, and the cycle is closed. The five key steps are (see attached picture). Assume that you want to carry out a sequence of cycle reactions.  b) What volume of 16M HNO3​ solution provides the required amount of the acid?