Chemistry, 31.07.2019 03:30 cutegirl0987
In a chemistry experiment, which word represents the overall change? a. evaluation b. reactant c. product d. equation
Answers: 2
Chemistry, 21.06.2019 20:30
This chart represents the melting point of several substance. what besy explains the high melting point of the salt?
Answers: 2
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Chemistry, 22.06.2019 20:30
The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?
Answers: 3
Chemistry, 22.06.2019 22:00
How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?
Answers: 3
In a chemistry experiment, which word represents the overall change? a. evaluation b. reactant c....
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