6. Radioisotope A has a half-life of 2 minutes. Radioisotope B has a half-life of 2

hours. Which one would have a larger amount left after 5 hours has elapsed?

Imagine that the reaction 2 CO (g) + O2 (g) - -> 2 CO2 (g) occurs in a container that has a piston that moves to maintain a constant pressure when the reaction occurs at constant temperature.

Which process is commonly used to separate a mixture of ethanol and water?

A student records the mass of a piece of iron. the iron is then left outside until it rust. what type of reaction occurs. and how does the mass of the object after rusting compare with its original mass

Which of these substances is a compound Carbon Chlorine Uranium Ammonia

What is the approximate hydronium ion concentration and hydroxide ion concentration in bleach? Which is higher?

At a certain temperature, the equilibrium constant, kc, for this reaction is 53.3. h2 (g) + i2 (g) â½âââ2hi (g) kc=53.3 at this temperature, 0.700 mol of h2 and 0.700 mol of i2 were placed in a 1.00-l container to react.

2 Calculate What is the density of a liquid with a mass of 17.4g and a volume of 20 mL?

After concluding his research, which statements would Virchow agree with? Check all that apply. Living things come from nonliving things. Cells can come from nonliving materials. Frogs can come from mud.

2. Look up Boyle's law in a science textbook. How do the results of the experiment support or contradict Boyle's law?

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