Chemistry, 12.02.2021 06:20 itzandrea456
Why is it important to learn about chemical reactions?What must be the same before and after a reaction?
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Chemistry, 21.06.2019 13:00
Asolution at 25 degrees celsius is 1.0 × 10–5 m h3o+. what is the concentration of oh– in this solution?
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Chemistry, 22.06.2019 05:50
Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.
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Chemistry, 22.06.2019 10:30
Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic
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Chemistry, 22.06.2019 11:50
Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?
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Why is it important to learn about chemical reactions?What must be the same before and after a react...
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