Chemistry, 06.12.2019 23:31 nicpinela1234
Two changes are described below. ice melts to form water. sugar cubes dissolve in hot coffee. which statement is true about the two changes? both are chemical changes because there is a change in the composition of ice and sugar. both are physical changes because there is a change in the physical states of ice and sugar. a is a physical change due to a change of state, but b is a chemical change because new molecules are formed. a is a chemical change due to a change of state, but b is a physical change because new molecules are formed.
Answers: 1
Chemistry, 23.06.2019 00:00
2-bromo-2-methylbutane undergoes an e1 elimination reaction in the presence of ethanol. in the next reaction only one of the possible products is represented. although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. complete the mechanism and draw the missing substances.
Answers: 1
Chemistry, 23.06.2019 02:40
Calculate the standard enthalpy of formation of liquid methanol, ch3oh(l), using the following information: c(graphite) + o2 latex: \longrightarrow ⟶ co2(g) latex: \delta δ h° = –393.5 kj/mol h2(g) + o2 latex: \longrightarrow ⟶ h2o(l) latex: \delta δ h° = –285.8 kj/mol ch3oh(l) + o2(g) latex: \longrightarrow ⟶ co2(g) + 2h2o(l) latex: \delta δ h° = –726.4 kj/mol
Answers: 3
Chemistry, 23.06.2019 06:00
Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control?
Answers: 1
Two changes are described below. ice melts to form water. sugar cubes dissolve in hot coffee. which...
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