Answer:
The answer to 12 is Indium... you should be able to figure out the rest from there with help from the internet since i've given you the element
Explanation:
I would usually do it but I got a ton of hw
Answer:
7p
Explanation:
principal quantum number is 7
n=7( principle shell)
angular momentum quantum number gives sub shell
l = 1 means it is p orbital
so answer is 7p orbital
The entire range of electromagnetic frequencies is known as C, the electromagnetic spectrum.
Television remote controls (D) do NOT use radio waves (they use infrared radiation).
A material that allows some, but not all, light to pass through it, would be described as translucent (C).
Answer:
%Ionization = 1.63%
Explanation:
Hydrazine in aqueous media theoretically forms a difunctional hydroxyl system. However, for this problem assume only monofunctional ionization occurs. A second hydroxyl ionization would not likely occur as the formal cationic charge formed in the 1st ionization would inhibit a second ionization.
H₂NNH₂ + 2H₂O => HONHNHOH => HONHNH⁺ + OH⁻; Kb = 1.3 x 10⁻⁶
So, assuming all OH⁻ and HONHNH⁺ are delivered in the 1st ionization then a good estimate of the %ionization can be calculated.
HONHNHOH => HONHNH⁺ + OH⁻
C(i) => 0.490M 0M 0M
ΔC => -x +x +x
C(eq) => 0.490 - x x x
≅0.490M* => *x is dropped as Conc H₂NNH₂/Kb > 100
Kb = [HONHNH⁺][OH⁻]/[HONHNHOH]
1.3 x 10⁻⁶ = x²/0.490
=> x = [OH⁻] = [HONHNH⁺] = √[(1.3 x 10⁻⁶)(0.490)] = 8 x 10⁻⁴
=> %Ionization = (x/0.490)100% = (8 x 10⁻⁴/0.490)100% = 1.63%
Answer:
FALSE
Explanation:
Ionic bonds are when two atoms of OPPOSITE CHARGE bond together by sharing electrons. For example Na and Cl have opposite charges and they form ionic bonds. Thus two negatively charged particles aren't oppositely charged so they can't be ionic bonds so the statement is FALSE.
