Chemistry, 05.09.2020 22:01 screamolover1700
Which is the correctly balanced equation for the reaction of rust, Fe2O3, and hydrochloric acid, HCl?
A. Fe2O3 + HCl → FeCl3 + H2O
B. Fe2O3 + HCl → FeCl3 + H2O
C. Fe2O3 + 6 HCl → 2 FeCl3 + 3 H2O
D. Fe2O3 + 3 HCl → 2 FeCl3 + 3 H2O
Answers: 2
Chemistry, 22.06.2019 01:20, whrjegt4jrnfdvj
1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.
Answers: 2
Chemistry, 22.06.2019 06:30, luhmimi17
Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.
Answers: 1
Chemistry, 22.06.2019 10:30, freddhendrickss
When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.
Answers: 2
Which is the correctly balanced equation for the reaction of rust, Fe2O3, and hydrochloric acid, HCl...
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