Chemistry, 23.07.2019 01:30 jeanette7482
Asample of iron (fe) with a mass of 200.0 g releases 9,840 cal when it freezes at its freezing point. what is the molar heat a fusion for iron?
use q = nh
a. 2,747.7 cal/mol
b. 2,771.8 cal/mol
c. 2,811.7 cal/mol
d. 3,280.0 cal/mol
Answers: 1
Chemistry, 22.06.2019 10:00
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) β co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) β co2(g) k=1.363Γ10^69 b. 2 h2(g) + o2(g) β 2 h2o(g) k=1.389Γ10^80 c. 2co(g) + o2 (g) β 2 co2(g) k=1.477Γ10^90
Answers: 1
Chemistry, 22.06.2019 21:30
How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2
Answers: 2
Chemistry, 23.06.2019 01:30
Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.
Answers: 2
Asample of iron (fe) with a mass of 200.0 g releases 9,840 cal when it freezes at its freezing point...
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