Americium-242 has a half-life of 6 hours. If you started with 24 g and you now have 3 g, how much time

has passed?

If a substance decreases in temperature from 270K to 220K, the kinetic energy of that substance increases.

What is the number of moles of h2o formed when 2.0 moles of NH3 react completely

When a gamma ray is emitted from the nucleus of an atom: it reduces the overall energy of the nucleus it increases the overall energy of the nucleus it causes a charge imbalance in the nucleus it causes changes in the electronic structure outside of

What is the molarity of a solution prepared from 32.0 grams of methanol (ch3oh, density = 0.792 g/ml) with 125 milliliters of ethanol (ch3ch2oh) ? assume the volumes are additive?

What's the formula for distance?

Carbon monoxide reacts with oxygen to form carbon dioxide. 2 CO (g) + O2 (g) → 2C02 (8) In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask? 4.30 atm 2.

The nerves that Branch out from the spinal cord and connect to the body

The term southern oscillation most nearly refers to

Which kelvin temperature is equivalent to 20°C

When a piece of magnesium metal is added to hydrochloric acid, what gas is produced?