<h3>
Answer:</h3><h2>Covalent Bonds</h2>
<em><u>Carbon Forms Covalent Bonds</u></em>
<em><u>Carbon Forms Covalent BondsThe most common type of bond formed by carbon is a covalent bond. In most cases, carbon shares electrons with other atoms (usual valence of 4). This is because carbon typically bonds with elements which have a similar electronegativity.Jul 28, 2019</u></em>
Explanation:
<h3><em>Hope</em><em> it</em><em> works</em><em> out</em><em>!</em></h3>
<em>ᕦᶘ ᵒ</em><em>A</em><em>d</em><em>r</em><em>i</em><em>㉨</em><em>a</em><em>n</em><em>n</em><em>a</em><em>ᵒᶅᕤ</em>
To answer your question, the answer is number 1. hope this help
Answer:
a. Pb 208
b. About 21.7 minutes
c. only a trace amount
Explanation:
It under goes beta decay.
There should be virtually nothing after an hour
Answer:
1.D
2.C
3.D
4.D
5.C
6 B
those are the answers, we must take care of our environment
<u>Given:</u>
Concentration of HNO3 = 7.50 M
% dissociation of HNO3 = 33%
<u>To determine:</u>
The Ka of HNO3
<u>Explanation:</u>
Based on the given data
[H+] = [NO3-] = 33%[HNO3] = 0.33*7.50 = 2.48 M
The dissociation equilibrium is-
HNO3 ↔ H+ + NO3-
I 7.50 0 0
C -2.48 +2.48 +2.48
E 5.02 2.48 2.48
Ka = [H+][NO3-]/HNO3 = (2.48)²/5.02 = 1.23
Ans: Ka for HNO3 = 1.23
