Chemistry, 16.12.2019 18:31 sharondot8523
The temperature of 500.0 g of water contained in a calorimeter increased from 20.0 °c to 50.0 °c when 5.00 g of fuel was burned to completion. what is the δh of this combustion reaction? (the specific heat of water is 4.184 j/g°c and the molecular weight of the fuel is 40.0 g/mol.)
Answers: 2
Chemistry, 22.06.2019 12:30
The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms
Answers: 1
Chemistry, 22.06.2019 14:10
16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.
Answers: 2
Chemistry, 22.06.2019 18:30
When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?
Answers: 1
The temperature of 500.0 g of water contained in a calorimeter increased from 20.0 °c to 50.0 °c whe...
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