HELP ASAP! I will give brainiest if you answer all questions correctly.
28) Choose the best answer.
Calculate the amount of heat required or released. You will need to use your Periodic Table, Table B-3 and Table B-4, in your Chemistry Reference Guide.
How much heat is required to raise the temperature of 155 g of liquid ammonia (NH3) at 200 K to ammonia gas at 300 K? Ammonia boils at 240 K.
261 kJ
-204kJ
209kJ
-88kJ
300 kJ
29) Choose the best answer.
Calculate the amount of heat required or released. You will need to use your Periodic Table, Table B-3 and Table B-4, in your Chemistry Reference Guide.
How much heat would be needed to raise the temperature of 255 grams of ice at 253 K to steam at 393 K?
-204kJ
300 kJ
209kJ
-88kJ
788 kJ
30) Choose the best answer.
Calculate the amount of heat required or released. You will need to use your Periodic Table, Table B-3, Table B-4, and Table B-5 in your Chemistry Reference Guide.
How much heat is lost when 2012 g of H2O at 400 K is changed into ice at 263 K?
300 kJ
-880 kJ
299 kJ
-204 kJ
-6201 kJ
Answers: 1
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How many moles are in 1.26*10^24 particles in significant figures
Answers: 2
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What are the coefficients to balance the following equation? ba+br=babr2
Answers: 1
Chemistry, 23.06.2019 07:30
Assume that 13.5 g solid aluminum (al) react with hcl to produce solid aluminum chloride (alcl3) salt and gaseous hydrogen (h2) at standard temperature and pressure.
Answers: 1
HELP ASAP! I will give brainiest if you answer all questions correctly.
28) Choose the best answer....
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