Chemistry, 05.10.2019 02:30 klanclos1620

You have a series of four chemical reactions (1-> 2-> 3-> 4). how do you calculate the triangleh2 if you know the other triangleh values?

a. triangle h2= triangleh1 + triangleh3 -triangleh4

b. triangle h2= triangleh1 + triangleh3 + triangleh4

c. triangle h2= triangleh4 - (triangleh1 + triangleh3)

d. triangle h2= (triangleh1)(triangleh3)(triangleh4 )

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 15:20

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.

Answers: 1

Answer

Chemistry, 22.06.2019 22:30

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.

Answers: 1

Answer

Chemistry, 23.06.2019 02:50

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ

Answers: 2

Answer

Chemistry, 23.06.2019 04:20

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.

Answers: 1

Answer

You know the right answer?

You have a series of four chemical reactions (1-> 2-> 3-> 4). how do you calculate the tria...

Questions