In the construction of bridges and sky scrapers, gaps must be left between adjoining steel beams to allow for expansion and construction of the metal due to heating and cooling. the temperature of a sample of iron with a mass of 20.0 grams changed doom 60.0 c to 35.0c. how many joules of heat were released? a. 200 joules b. 225 joules c. 152 joules d. 346 joules
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Chemistry, 22.06.2019 13:30, bryce99
In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.
Answers: 2
Chemistry, 23.06.2019 00:00, kittenalexis68
How many atoms or molecules are there in a mole of a substance?
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Chemistry, 23.06.2019 15:30, georgesarkes12
Floor 19 is an isotope of fluorine it has different number a. electrons b. protons c. neutrons d. electron shells
Answers: 1
In the construction of bridges and sky scrapers, gaps must be left between adjoining steel beams to...
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