Chemistry, 03.09.2019 01:30 ToriChristine
A0.500-g sample of kcl is added to 50.0g of water in a calprimeter (figure 5.12) if the temperature decreases by 1.05c. what is the approximate amount of heat involved in the dissolution of the kcl , assuming the heat capacity of the resulting solution is 4.18 j/gc? is the reaction exothermic or endothermic?
Answers: 2
Chemistry, 22.06.2019 02:50
Consider the equilibrium system: 2icl(s) ⇄ i2(s) + cl2(g) which of the following changes will increase the total amount of of cl2 that can be produced? all of the listed answers are correct decreasing the volume of the container removing the cl2 as it is formed adding more icl(s) removing some of the i2(s)
Answers: 1
Chemistry, 22.06.2019 10:00
Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83
Answers: 3
Chemistry, 22.06.2019 10:30
Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2
Answers: 1
Chemistry, 22.06.2019 12:50
What is the chemical name of the compound na2co3? use the list of polyatomic ions and the periodic table to you answer. a. sodium carbon oxide b. sodium carbonate c. sodium(ll) carbonate d. sodium oxalate
Answers: 1
A0.500-g sample of kcl is added to 50.0g of water in a calprimeter (figure 5.12) if the temperature...
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