13) Most living things need oxygen to survive. These two body systems bring oxygen into your body and then move to all your body parts. What are these two body systems?

Find the total mass of three diamonds that have masses of 14.2 grams

How many grams of solute are contained in 356 g of a 12.5% (w/w) solution?

A piece of double stranded DNA has 44% C, what will be the % of G? Use Chargaff's Rules.

Which of the following best explains why coastal regions generally have more moderate air temperatures than inland regions of the same latitude? A. The ocean has a moderating effect on the area. B.

Explain how line spectra are used to identify elements and what they indicate about atoms

Some covalent compounds contain atoms of just one element. true or false?

You wish to calculate the mass of hydrogen gas that can be prepared from 4.93 g of srh2 and 4.14 g of h2o.

Are needed to digest food in the stomach

What is the volume of 2.1 moles of chlorine gas at STP?

If one starts with pure NO2 (g) at a pressure of 0.500 atm, the total pressure inside the reaction vessel when 2 NO2 (g) ⇌ 2 NO (g) + O2 (g) reaches equilibrium is 0.674 atm. Calculate the equilibrium partial pressure of NO2.