# Find the amount of heat energy needed to convert 150 grams of ice at -15°C to ice at -63°C. Group of answer choices A. (-) 14760 Joules because the ice is being heated. B. (-) 14760 Joules because the ice is cooling. C. 14760 Joules because the ice is cooling. D. 14760 Joules because the ice is being heated.

leloobey   ·   04.08.2022 19:00
13.07.2019 18:30

a. the law of proportion states the combination of 2 atoms in a specific ratio to produce multiple compounds such as the given statement of question ‘1st compound contains 88.8 % cu ’ indicates 88.8 g of cu is present along with 11.2 g oxygen in 100 g of compound whereas the statement ‘2st compound contains 79.9 % cu ’ indicates 79.9 g of cu is present along with 20.1 g oxygen in 100 g of compound

1st compound contains 88.8 g cu

for cu

m = 63 g /mol

atomic % = 88.8 /63 = 1.42

for o

m = 16 g /mol

atomic % = 11.2 /16 = 0.7

b. the emperical formula of 1st compound is

cu1.4o0.7

cu2o

08.07.2019 13:30

~*"auba14"*~

07.07.2019 16:30

consider the reaction below.

￼ no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

24

06.07.2019 02:20

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

hope this and sorry i could only come up with one answer!

### Other questions on the subject: Chemistry

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning...
Chemistry
22.06.2019 00:30
Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy...
Chemistry
22.06.2019 01:30
What is the value of keq for the reaction expressed in scientific notation?...
Chemistry
22.06.2019 08:40
How hot is the suns corona? (integrated science)...
Chemistry
22.06.2019 11:30
Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to...
Chemistry
22.06.2019 11:40
Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)...
Chemistry
22.06.2019 19:30
Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number....
Chemistry
22.06.2019 22:10
The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of...
Chemistry
23.06.2019 03:40
Chemical engineering who specializes in negotiating for large purchases and instructing customers in use of the products are...
Chemistry
23.06.2019 04:31