Scientists have used different methods to construct solar system models. Which of these qualities did the scientists most likely use while constructing the models? (2 points) Group of answer choices kindness helpfulness generosity creativity

The reaction q+r2=r2q is found to be first order in r2 and

The graph above shows how the price of cell phones varies with the demand quantity. the equilibrium price for cell phones is where both supply and demand quantities equal $100, 5,000 5,000, $100

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.