Step 5: Type one to two paragraphs that describe your models and explain the conservation of mass in the chemical reaction. a) Create a new blank document. Type your name at the top. b) Type one to two paragraphs that describe your models and relate them to the law of conservation of mass. Your document should: 1. identify the names of the reactants and products in the reaction. ii. identify the number of molecules that make up the reactants and products. iii. identify the type and number of atoms in each molecule of the reactants and products. iv. explain what happens during the chemical reaction. v. explain how mass is conserved during the chemical reaction.

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

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

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it