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)

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 21.06.2019 21:30

Sex cells from female reproductive organ? 1) mitosis 2) fertilization 3) zygote 4) eggs 5) meiosis 6) sperm

Answers: 2

Answer

Chemistry, 22.06.2019 00:30

Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?

Answers: 2

Answer

Chemistry, 22.06.2019 03:30

What diagram shows the ionic compound of magnesium oxide

Answers: 2

Answer

Chemistry, 22.06.2019 05:00

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

Answers: 1

Answer

You know the right answer?

Which equation represents a physical change?
(1) h2o(s) + 6.01 kj ==> h2o(l)
(2) 2h2...

Questions

Business, 29.06.2019 05:10

Let q1 represents client visits and q2 represents hours of operations. the electricity cost for blissful spa depends on both client-visits and the hou...

Business, 29.06.2019 05:10

Marginal product is: the increase in total output attributable to the employment of one more worker. the increase in total revenue attributable to th...

Physics, 29.06.2019 05:10

Amutant strain of e. coli produces β-galactosidase in the presence and in the absence of lactose. where in the operon might the mutation in this strai...

Physics, 29.06.2019 05:10

Estimate the weight of 25 km of gas pipeline, dn = 610 mm and wall thickness = 12.7 mm....

Mathematics, 29.06.2019 05:10

Charles has collected data to find that the total snowfall per year in reamstown has a normal distribution. using the empirical rule, what is the prob...

Physics, 29.06.2019 05:10

Force p is directed from point a(3,3,2) towards point b(7-3,12) and has a magnitude of 60n while force vector q- 60i+20j- 50k and force vector f- fi+f...

Mathematics, 29.06.2019 05:10

Find the (a) mean, (b) median, (c) mode, (d) midrange, and then answer the given question. celebrity net worth listed below are the highest amou...

Physics, 29.06.2019 05:20

Calculate the deflection at point c of a beanm subjected to uniformly distributed load w 275 n/mm on span ab and point load p-10 kn at c. assume that...

Mathematics, 29.06.2019 05:20

Application 11. dasha took out a loan of $500 in oeder to buy the # 1 selling book in the world, "math, what is it good for? " by smart e. pants. she...

Mathematics, 29.06.2019 05:20

On a piece of paper, graph y+4< 1/2x-2. then determine which answer choice matches the graph you drew.

History, 29.06.2019 05:20

What piece of art is most similar to marcel duchamps ready-made piece? the two answers are not options. examples: car bumper on a stone, photograph,...

Mathematics, 29.06.2019 05:20

Me asap! quadrilateral wxyz is on a coordinate plane. segment xy is on the line x - y = -3, and segment wz is on the line x - y = 1. which statement...

Mathematics, 29.06.2019 05:20

What happens to the decimal point in a number when the number is divided by 10^1...

Mathematics, 29.06.2019 05:20

Triangle efg is dilated by a scale factor of one half centered at (1, 1) to create triangle e'f'g'. which statement is true about the dilation? ...

English, 29.06.2019 05:20

Becoming the "richest jeweller in england" has brought the jeweller all of the following except a. power. c. social status. b. stability. d. peace of...

Health, 29.06.2019 05:20

In the state of missouri research data, how many more years did non-smokers live compared to people who smoked? a 7.4 years b 9.8 years

Mathematics, 29.06.2019 05:20

Find the vertex of the parabol whose equatio is y =3x^2+6x+1...

Physics, 29.06.2019 05:20

Acylindrical container with 25 ft in diameter is filled to a depth of 22 ft with gasoline (s. g.-0.68). find the weight of the gasoline and the number...

Computers and Technology, 29.06.2019 05:20

Your network contains an active directory domain services (ad ds) domain controller that runs windows server 2012 r2. you need to create a new user te...

Social Studies, 29.06.2019 05:20

When a teacher spends only a week of class time talking about important female inventors he is taking the approach to multicultural education...

More questions: Chemistry Another questions

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)

Answers

Another question on Chemistry

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)