# Given dry operating mass 5210 zero fuel mass

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The formula of hydrated calcium chloride is CaCl Calculate X if the | First get the mole ratios of CaCl Then divide the ratios by the smallest member to get single integer 11.1/110 : 3.6/18 0.1 : 0.2 or 1 : 2 CaCl |

A 10ml sample of alcohol is pipetted into a flask with stopper. The mass is found by difference to be 7.899g. Calculate the | Density D = = 7.899/10 = 0.8g/ml. One digit. |

The mass of an unknown rectangular block is 139.43g. If the block measures 5.00cm by 2.55cm by 1.25cm, what is its density? | Density D = = = 8.75g/cm |

What is the meaning of the word | Solid changing directly into gas without changing to liquid first. |