Chemistry, 09.09.2019 23:30, webbhlharryteach
In the process of attempting to characterize a substance, a chemist makes the following observations. which are physical properties and which are chemical properties?
(a) the substance is a silvery white, lustrous metal
(b) it melts at 649°c and boils at 1105°c
(c) its density at 20°c is 1.738 g/cm3
(d) the substance burns in air, producing an intense
Answers: 3
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Use examples from the article to explain one positive and one negative effect that chemistry has had on society.
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Chemistry, 22.06.2019 07:40, sadcase85
22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na, so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g
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Chemistry, 22.06.2019 15:00, MilanPatel
How is the shape of the poem “peer” connected to its meaning?
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In the process of attempting to characterize a substance, a chemist makes the following observations...
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