Directions: Use dimensional analysis to perform the following calculations. Show all
work, include your units, and box your final answers.
1. How many molecules are in a 189 g sample of carbon tetrabromide, CBr ?
2. How many moles are equal to 13.25 g of barium permanganate, Ba(Mno.),?
0.0026652572928249 mole.
3. What volume of nitrogen gas (N) is equal to 3.42x10 molecules of this
substance?
4. How many moles are equal to 12.65 grams of AL (SO),?

explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

when atmosphere interacts with biosphere they focuses on on the sources and sinks of green house gases (ghgs) air pollutants, particular matters, water and energy between the earth's surface and the atmosphere. the biosphere affects the climate. the atmosphere and biosphere are in constant interaction with each other, and all living things rely on gases in the atmosphere for life. organisms such as animals take in oxygen gas form the atmosphere to use in every cell of their body for smooth functioning of daily routine exercises.