Chemistry, 24.08.2019 01:30 kadrian12

Why it is that evaporation causes cooling, but boiling causes heating?

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Chemistry, 22.06.2019 22:30, skinniestoflegends

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.

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Chemistry, 23.06.2019 03:10, DCURLS3518

If 10.5 l of a at 0.98to 1.50 , is ?

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Chemistry, 23.06.2019 04:31, mdarter

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.

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Chemistry, 23.06.2019 04:50, mia36492

The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table. state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?