Does anyone have the answers to the end of semester test B for chemistry on Edmentum?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

What is the oxidation state of an individual bromine atom in nabro3?

Can someone check my work 98 5.05 acids and bases for this assignment you will be comparing acids and bases. the chart below will you organize the information needed: acids bases chemical properties (2) deodorant detergent vinger dish soap physical properties (2) orange juice toilet cleaner drain cleaner window cleaner ph level acid ph goes from 0-4 bases ph goes from 10-14 examples around you (2) vinger coffee lemon juice dark chocolate