3. Determine the thermal energy released by the combustion of each of the following samples of
hydrocarbons in an open system: 2.344 x 104 g heptane, C7H16(l)

Y=‐1x + 7 if y has a value of ‐24 what is the value of x?

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

Draw metallic bonding if two copper