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A friend has just filled up a water balloon with a hose that is still connected to the
balloon. You both agree that any more pressure inside the balloon will cause it to
burst.
How might you test this theory without risking getting wet or adding more water to
the balloon? Use words and pictures to share your thinking.

Ifound this on google “these two compounds have a different ionic structure. caesium ion is larger in size when compared to the sodium ion. the charge gets more area to spread out evenly. so caesium chloride has a lower melting point than sodium chloride.” i hope this you for what your looking for

Idon't know hope someone you

The number of medals awarded to the track team during the season.

Answer

it is the minimum amount of material needed to sustain a fission reaction.

explanation

critical mass is the minimum amount of fissionable material that must be assembled for a sustained fission reaction to take place. although two to three neutrons are produced for every fission, not all of these neutrons are available for continuing the fission reaction. if the conditions are such that the neutrons are lost at a faster rate than they are formed by fission, the chain reaction will not be self-sustaining.   at the point where the chain reaction can become self-sustaining, this is referred to as critical mass.