A volcanologist noted that a lahar rushed down a mountain at 32.2 kilometers per hour, south. How far did

the mud flow in 17.5 minutes?

Calculate the mass of butane needed to produce 61.9 g of carbon dioxide

Hydrochloric is an acid a base a neutral

Which has more momentum - an 80 kg runner with a velocity of 2.45 m/s or a 65 kg runner with velocity of 3 m/s? Show work

Sublimation and boiling both happen at the surface of the substance. a. True b. False

H2SO4 + 2 NH4OH - -> (NH4) 2SO4 + 2 HOH is a neutralization reaction between an acid and a base. Which substance is the salt?

Why do cells have a plasma membrane? A. to separate protein from the nucleus B. to distinguish plants from animals C. to define the size of the cell D. to separate the inside of the cell from its enviroment

Base on its molecular mass, what is the molar mass of iron

For the following reaction in aqueous solution, identify all those species that will be spectator ions. Select all that apply. Na, SO4+Hg (NO3) 2HSO4+2NaNO3 Choose one or more: A. Hg2S04 B. Na2S04 C. Nat D. NO3 E. SO42- F. Hg2 (NO3) 2 G. NaNO3 H.

One mole of which hydrocarbon requires 8 mol o2 to achieve complete combustion to give carbon dioxide and water?

How many bromine atoms are present in 39.9 g of CH2Br2