What are tiny air sacs of the lungs where oxygen and carbon dioxide are

exchanged?

•pharynx

•larynx

•bronchi

•alveoli

Add 2 protons to carbon what element do you create

What is the charge and position of of the neutron within the atom? neutral charge; spinning on the outside of the atom negative charge; found within the nucleus positive charge; spinning on the outside of the atom positive charge;

What affect does distance have on gravitation force

The first organism in a food chain muust always be what type e of organism

In an experiment what unit of measurement would you use to demonstrate the law of conservation of mass

The data below were collected for the following reaction at 500 ∘C: CH3CN (g) →CH3NC (g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.

How do i convert 3.00 moles H2 to molecules?

How can you use the chemical formulas for sucrose (C6H, 20,) and rust (Fe, O,) to classity them ionic or molecular compounds?

What is true of energy as is passes through an ecosystem? a. All of the energy in an organism is used by the animal that eats it. b. Any stored energy in an organism is used by the animal that eats it. c.

Which can associate a suspect and the firing of a gun? (its not b) A) markings on the gun's exterior B) markings on the casing C) markings on the bullet D) powder residues