Adam g. sevani
The correct way you should have wrote this is (NH4)2S and the compounds name is Ammonium Sulfide.
The name is ammonium sulfide.
The correct chemical name for (NH4)2S is ammonium sulfide.
The name used for the US state and river is spelled Mississippi. (2s, 2s, 2p)
This is easy. Make two equations, and represent the sandwiches with s and the drink with d. you get: 2s+d=10 s+2d=8 After simplifying and taking away a variable, you figure out that each sandwich costs 4 dollars and each drink costs 2 dollars. (Heres the step by step algebra) 2s +dy = 10 s + 2d = 8 2s + d = 10 2s + 4d = 16 3d = 6 d = 2 2s + d = 10 2s + 2 = 10 2s = 8 s = 4 So, Sandwich = £4 Drink = £2
The compound (NH4)2S is ammonium sulfide.
i do not know but i will soon find her i am nine she is eather in her 16171819 or 2s
4s2 - 9 can be expressed by using the identity: a2 - b2 = (a-b)(a+b) Therefore, 4s2 - 9 = (2s)2 - 32 = (2s-3)(2s+3)
The equivalent is 7s+2s = 9s
substitution
2s - 12 + 2s = 4s - 124s - 12 = 4s - 124s = 4ss = s==========this is an identity and any number can be s
I believe that it is a combination of ammonium and sulfer.