Astudent wished to add a new experiment to chapter 2 by investigating whether the mass of water changes when it is heated. the mass of a beaker containing a sample of water at 20°c was 109.44 g. after heating the sample to 60°c, the com- bined mass of the beaker and water was 109.08 g. do these results contradict the law of conservation of mass? explain your reasoning.

mass conservation is valid for all closed system where the mass will remain in the system always

Explanation:

Conservation of mass is applicable everywhere in classical physics

Here we can also apply mass conservation as we know that the initially the beaker and its water content is having total mass of 109.44 g

now when we heated it to higher temperature then its total mass will be lesser than the initial mass this is because some of the water may evaporate from the system.

Here if we repeat the same experiment with closed boundary then we can see that total mass will be conserved

So here mass conservation is valid for all closed system where the mass will remain in the system always

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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explanation: