A balloon starts off with 0.00035 moles of air and has a volume of 0.0081 L. It is inflated to a size of 1.5 L, how many moles of air are in the balloon

now?

8. Adding up all of the of all of the individual atoms within one molecule of a compound will determine the molecular mass of the compound. A. atomic masses B. protons C. electrons D. atomic numbers

If you crashed your car into a house, which kind of insurance would you use: a) Homeowners insurance b) Renters insurance c) Disability insurance d) Auto insurance Submit

Which of these elements is a transition metal? francium (Fr) beryllium (Be) chromium (Cr) gallium (Ga) bismuth (Bi)

Which of the following best describes an electron? A. It has no charge and about the same mass as a proton. B. It has a negative charge and much less mass than a proton. C. It has a positive charge and much more mass than a neutron. D.

Which molecule would you predict would be more stable: be2 - 2 or be2?

Recall the postulates of kinetic molecular theory read the list and check all the statements that apply to behavior of an ideal gas

Which property would cesium most likely have? It is hard. It is ductile. It is a gas. It has low reactivity.

What is dexamethazone?

Is S + O2-> 2H2O + 483.6 KJ exothermic or endothermic

An aspirin tablet contains 81.0 mg of aspirin, which has the molecular formula, c9h8o4.