What are the signs of a tornado?

dark skies, flying debris, and a freight train noise

rain and flying debris

flying debris only

a visible funnel cloud only

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Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5