Keisha told her friend that she can get to the town library by walking one mile east, turning left, and then walking a half a mile north. which best describes how keisha can improve these instructions to better her friend find the library? using meters as the unit instead of miles drawing a picture of the library on a line diagram estimating the amount of time to get to the library providing a reference point to follow

the correct answer is letter D, providing a reference point to follow

The correct answer is option D, providing a reference point to follow

Explanation:

If keisha will provide reference point for all the directional instruction, it will help anyone in the following ways –  

a)When a person follows Keisha’s direction one by one and at every step the person also sees the reference point as mentioned by her, the confidence of people following her instruction will boost as they would be satisfied within themselves that they are following  the right path .

b)In case if they somehow miss the direction, they can come back again to the lost directions with the help of associated reference point.  

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !