Aluminum β is a solid phase of aluminum still unknown to science. The only difference between it and ordinary aluminum is that Aluminum β forms a crystal with a bcc unit cell and a lattice constant a=331. pm. Calculate the density of Aluminum β Round your answer to 3 significant digits.

Evaporation: this is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas). water vapour droplets join together to make clouds! condensation: this is when water vapour in the air cools down and turns back into liquid water.

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