A 50-gram sample of a radioactive nuclide is left to decay for 10 hours. At the end of 10 hours, only 25 grams of the sample is left. What is the half-life of the nuclide sample?

A student growing a crystal finds that the mass of the crystal decreased from one day to the next day. Why? a. student added to little saturated solution to the crystal growing vessel b.

Define the word cell

What is 3 parts of a chemical formula

As additional KNO3 (s) is added to a saturated solution of KNO3 at constant temperature, the concentration of the solution? (I know it remains the same but why?)

How to find effective nuclear charge

What is the chemical formula for potassium permanganate?

Is it always possible to identify something as an element compound pure substance or mixture

Why would someone weigh less on Pluto?

HNO3 + H2O > H3O (aq) + NO3 - (aq)

What do you get when you mix lemons with gunpowder