When would a flag variable be most useful? 1.when printing the number of items in a list

2.when checking the condition of a variable in a while loop

3.inside a function that prints the largest side of a triangle

4.when initializing a list

Which is a benefit of getting information from a government website? a. the information will be easy to understand. ob. the information will be the most current. oc. the information can be trusted.

Someone wishes to run the software on another computer system that runs an operating system that does not support the software what can he do

Write a function balancechemical to balance chemical reactions by solving a linear set of equations. the inputs arguments are: reagents: symbols of reagents in string row array products: symbols of products in string row array elements: elements in the reaction in string row array elcmpreag: elemental composition of reactants in two dimensional numeric array elcmpprdcts: elemental composition of prducts in two dimensional numeric array hint: the first part of the problem is setting up the set of linear equations that should be solve. the second part of the problem is to find the integers from the solution. one way to do this is to mulitiply the rational basis for the nullspace by increasing larger integers until both the left-and right-side integers exist. for example, for the reaction that involves reacting with to produce and : reagents=["ch4", "o2"]; products =["co2", "h2o"]; elements =["c","h", "o"] elcmpreag=[1,4,0;