Chemistry, 14.05.2021 01:00 daniel1480
What is the universe made of? Astronomers face an embarrassing conundrum: they don't know what 95% of the universe is made of
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Chemistry, 22.06.2019 05:00
Which position represents spring in the southern hemisphere? a) b) c) d)
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Chemistry, 22.06.2019 10:30
Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o β k + o2 (b) na + i2 β nai (c) cu(no3 )2 + naoh β cu(oh)2 + nano3 (d) kclo3 β kcl + o2 (e) ca(no3 )2 + hbr β cabr2 + hno3 (f) sn(oh)2 β sno + h2 o (g) p4 + n2 o β p4 o6 + n2 (h) fe + al2 (so4 )3 β feso4 + al (i) alcl3 + na2 co3 β al2 (co3 )3 + nacl (j) c3 h6 + o2 β co2 + h2 o
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Chemistry, 22.06.2019 17:40
Areaction in which products can react to re-form reactants is
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Chemistry, 22.06.2019 18:30
The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false
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What is the universe made of? Astronomers face an embarrassing conundrum: they don't know what 95% o...
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