Which sentences describe decomposers in a food chain? They are the final link in the energy flow in a food chain or a food web. They are fungi and animals that feed on dead organic matter. Plants
produce food or energy from raw materials. Plants are also known as autotrophs because they can produce organic compounds from inorganic
chemicals. Bacteria, fungi, worms, and snails recycle the garbage of dead matter and give back nutrients into the ecosystem.

Which substances have the lowest melting points: ionic covalent, or metallic

In which situation can a mixture always be called a solution

Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap