Answer:
A. -205.7 kJ
Step-by-step explanation:
The overall enthalpy of reaction be calculated when the intermediate steps are present
formed in a multi-step process.
<span>
<u><em>The correct answer is: </em></u>green and blue.
<u><em>Explanation</em></u><span>
<u><em>: </em></u>We want to see which fractions </span></span>
is a multiple of. We know that
is a multiple of
, because
*3=
.
We can divide fractions to determine if
is a multiple of
:
;
in order to divide fractions, flip the second one and multiply:
)*
=
=1
.
This did not divide evenly, so
is not a multiple of 1/2.
Checking to see if
is a multiple of
,
;
flip the second one and multiply:
*
=
=6.
This divided evenly, so
is a multiple of
.
Answer:
5x-6
Step-by-step explanation:
f(x) = 2x + 3
g(x) = 3x - 9
f(x) + g(x) = 2x + 3 + 3x-9
= 5x-6
Answer:
Step-by-step explanation:
the Pythagorean theorem is
c is the hypotenuse which is the side opposite of the right angle
plug the numbers into the Pythagorean theorem
when squaring a square root, just take the number in the radical and get rid of the radical
subtract 26 from both sides
find the square root of 143
143 is prime so it can just be written as