The following characteristics describe which natural disaster?
i. more than 1,800 lives were lost.
ii. over $80 billion in damages was caused.
iii. more than 300,000 homes were destroyed.
a. hurricane katrina, which struck the united states in 2005
b. the earthquake that hit haiti in 2010
c. floods caused by the mississippi river in 2011
d. the earthquake and tsunami that hit japan in 2011

Which mathematical relationship should you us to convert moles of a substance into grams

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon