Chemistry, 18.01.2020 16:31 joelpimentel
From where do the gems used in jewlery come? a. they are mettallic ore b. they are nonmettallic silicates c. they are mettallic minerals d. they are non mettallic minerals.
Answers: 1
Chemistry, 22.06.2019 00:00
1) this is the structure in the cell nucleus that houses a cell's genetic information
Answers: 3
Chemistry, 22.06.2019 05:50
Why doesn't heat added to water make the tempature rise above 100c
Answers: 2
Chemistry, 22.06.2019 06:30
Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?
Answers: 1
Chemistry, 22.06.2019 21:30
Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.
Answers: 1
From where do the gems used in jewlery come? a. they are mettallic ore b. they are nonmettallic sil...
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