Chemistry, 31.07.2020 23:01 onlymyworld27
PLEASE HELP ME Which of the following is an example of -ΔS? Picking up marbles and placing them in a sack Paint spilling onto the floor from a can Grains of sand being dropped onto the carpet Dropping a drop of red dye into water
Answers: 2
Chemistry, 22.06.2019 12:00
Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.
Answers: 3
Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
PLEASE HELP ME Which of the following is an example of -ΔS? Picking up marbles and placing them in a...
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