Question

The enthalpies of formation of the compounds in the combustion of methane, mc019-1.jpg, are CH4 (g): mc019-2.jpgHf = –74.6 kJ/mol; CO2 (g): mc019-3.jpgHf = –393.5 kJ/mol; and H2 O(g): mc019-4.jpgHf = –241.82 kJ/mol. How much heat is released by the combustion of 2 mol of methane?

A. mc019-5.jpg80.3 kJ
B.mc019-6.jpg802.5 kJ
C.mc019-7.jpg1,605.1 kJ
D.mc019-8.jpg6,420.3 kJ

Answer 1

The equation 882-02-08-00-00-ver_files/i0070000.jpg describes a function that has been translated.

Answer 2

Which of these sources lacks the credibility to be used for an argumentative essa

Answer 3

Are poptarts ravioli or sandwiches?

Answer 4

Help pleae

Answer 5

Why does everyone have an anime profile pic?

Answer 6

a. Fill in the blanks in the following paragraph to correctly describe the nucleus of an atom.

Answer 7

MCAT Tutorial: Proton NMR Spectroscopy

Answer 8

Which statement gives the best concrete example for the abstract idea that "State

Answer 9

How does the word haunted appear as a motif in John Updike's "The Brown Chest," a

Answer 10

In which sentence is the underlined clause an adjective clause?
A.NASA created the first smoke detectors when they built the space station.

Answer 11

Which participant in European imperialism is being described below?

They began their exploration in the New World trying to locate the Northwest Passage an

Answer 12

Which fraction is equivalent to 38%?
mc005-1.jpg
mc005-2.jpg
mc005-3.jpg
mc005-4.jpg

Answer 13

MCAT Mini-Tutorial: Mass Spectrometry

Answer 14

What information is shown in an atomu2019s electron dot diagram?

the number of s

Answer 15

Solve

Answer 16

Graph

Answer 17

Let (4, -3) be a point on the terminal side of theta, an angle in standard position.

Answer 18

Solve and write solution intervals

Answer 19

Find the x and y intercepts

Answer 20

Find the horizontal asymptote