Chemistry, 02.12.2020 03:20, sarahalexa19
Which of the following represents a type of change (physical or chemical) that is different from the rest?
Rusting of metal after being exposed to water
Hydrogen and oxygen combine to make steam
Water vapor condenses to form water droplets
Release of gas when a particular candy is dropped in water
Answers: 1
Chemistry, 22.06.2019 10:30, officialalex6330
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
Answers: 1
Chemistry, 22.06.2019 20:20, carcon2019
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
Chemistry, 22.06.2019 23:00, catdog5225
What is formed when amino acids form long chains or polymerize
Answers: 1
Which of the following represents a type of change (physical or chemical) that is different from the...
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