subject
Chemistry, 25.08.2019 05:30 hcpsharrissy2952

Which equation represents a physical change?
(1) h2o(s) + 6.01 kj ==> h2o(l)
(2) 2h2(g) + o2(g) ==> 2h2o(g) + 483.6 kj
(3) h2(g) + i2(g) + 53.0 kj ==> 2hi(g)
(4) n2(g) + 2o2(g) + 66.4 kj ==> 2no2(g)

ansver
Answers: 1
Show answers

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 09:20, meccadm
How have the greenhouse gasses increased from the year 2000 to 2018
Answers: 2
continue
image
Chemistry, 22.06.2019 13:00, wbrandi118
Using the thermodynamic information in the aleks data tab, calculate the standard reaction free energy of the following chemical reaction: →+p4o10s6h2ol4h3po4s round your answer to zero decimal places.
Answers: 3
continue
image
Chemistry, 22.06.2019 15:20, merrickrittany
An alloy contains 66 g of pure zinc. what is the percentage of zinc in the alloy? express your answer to two significant figures and include the appropriate units.
Answers: 1
continue
image
Chemistry, 22.06.2019 15:50, savthespice
Which terms are used to identify pure substances
Answers: 3
continue
You know the right answer?
Which equation represents a physical change?
(1) h2o(s) + 6.01 kj ==> h2o(l)
(2) 2h2...

Questions in other subjects:

Konu
Physics, 01.11.2019 01:31
A2-kg box is pushed to the right by a force of 4 n for a distance of 32 m. it has an initial velocity of 4 m/s to the right. note: since this problem gives the distance ∆x travele...
Konu
Mathematics, 01.11.2019 01:31
The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time...
Konu
Mathematics, 01.11.2019 01:31
Iam working from 2pm to 12am between 2pm and 6pm i will make 12 dollars per hr. between 6pm and 12am i will make?...
Konu
Mathematics, 01.11.2019 01:31
In a statistics class there are 18 juniors and 10 seniors; 6 of the seniors are females and 12 of the juniors are males. if a student is selected at random, find the probability o...
Konu
Business, 01.11.2019 01:31
Acme-jones corporation uses a weighted-average perpetual inventory system. august 2, 24 units were purchased at $23 per unit. august 18, 40 units were purchased at $25 per unit. au...
Konu
Business, 01.11.2019 01:31
Wallace and simpson formed a partnership with wallace contributing $60,000 and simpson contributing $40,000. their partnership agreement calls for the income (loss) division to be...
Konu
English, 01.11.2019 01:31
Located in a remote region of new hampshire, carr high school has several students who are ready to enroll in calculus and others who wish to take latin, but there aren't any teach...
Konu
Spanish, 01.11.2019 01:31
El señor beltrán es viejo. es la una de la mañana. no deseo llegar tarde (late). ustedes están en el polo norte. es el mediodía. marcos escribe 20 + 7 = 26. 3 completar fill in the...
Konu
English, 01.11.2019 01:31
"let, therefore, thy husband be to the world as one already dead, and of whom no tidings shall ever come. recognize me not, by word, by sign, by look! breathe not the secret above...
Konu
English, 01.11.2019 01:31
In order to avoid plagiarism in a speech, you must inform the audience of the author or origin of any information that is not common knowledge arrange information into your own wo...
More questions: Chemistry Another questions
See results (0)