# Posts by Kellin

Total # Posts: 21

**Math**

what is the area of the right triangle formed by halving a square with perimeter 36 along its diagonal? a) 9 b) 18 c) 18+ 9 square root 2 d) 40.5 e) 81

**honors chemistry**

Compare the present Periodic Table with Mendeleevs original Periodic Table in terms of how it is organized, number of elements, what it looks like, ease of understanding, and information given.

**LA**

infatuated

**Math**

3x^3+2x^2-x/2

**algebra 2**

1,-1

**math**

30x+7

**honors chemistry**

yes!

**honors chemistry**

thanks

**honors chemistry**

Explain what the term "halogen" means and why they have this name, and which halogens exist as a solid, a liquid, and a gas at room temperature.

**honors chemistry**

why were the noble gases considered to be inert gases until the 1960s?

**Algebra 2**

x*2-4 180*2-4=356

**trig**

x=6/e^2

**algebra**

Find the slope of the line that is a) parallel and b) perpendicular to the given line. 1. x=-8 2. y=10

**math**

27

**math**

x=0,10/7

**algebra**

3.7*10^-5

**math**

add all sides together=perimeter p=10+10+12+12 length*width=area 10*12=120

**algebra 1**

the answer is 4

**Math**

-13

**chemistry**

is this right? -log(concentration of h3o+ or h+) ph= -log(9.5*10^-8) 1) 7.022

**chemistry**

1. Find the pH of a solution whose [H3O+] is 9.5 X 10^ -8 M. 2. What is the [H3O+] concentration of a solution with a pH of 5.45? 3. What is the pOH of a solution with a [OH -] concentration of 2.97 X 10^ -10 M?

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