Question

Don't say anything like 'I don't know', etc. or I'll report you.​

Answer 1

Answer:

the science that deals with the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes.

Answer 2

Answer:

7

Step-by-step explanation:

$a^{2}$ + $\frac{1}a^{2}$

$a$ = $\frac{3}{2} +\sqrt{5}$

$(\frac{3}{2}\sqrt{5^{2} )$ +  1/3 +$\sqrt{5}$ 2/ 2

...

$\frac{7}{2} + \frac{7}{2}$

$\frac{7}{2} +7$

$\frac{14}{2}$

=7