Answer:
47900 cm
General Formulas and Concepts:
<u>Chemistry</u>
- Base 10 Decimal System
- Using Dimensional Analysis
Explanation:
<u>Step 1: Define</u>
0.479 km
<u>Step 2: Identify Conversions</u>
1 km = 1000 m
1 m = 100 cm
<u>Step 3: Convert</u>
<u />
= 47900. cm
<u>Step 4: Check</u>
<em>We are given 3 sig figs. Follow sig fig rules.</em>
47900. cm ≈ 47900 cm
Answer:
[OH-] = 1.0 x 10-10 M
Explanation:
The acidity of a solution can be determined directly from the concentration of the hydrogen ions and indirectly from the concentrations of the hydroxide ions.
Generally, for a neutral solution we have;
[H3O+] = [OH-] = 1.0 x 10-7 M
For an acidic solution;
[H3O+] > 1.0 x 10-7 M
[OH-] < 1.0 x 10-7 M
Comparing the options the correct option is;
[OH-] = 1.0 x 10-10 M
Answer:
The correct answer would be the third choice.
Homo-genesis mixtures are the same in composure, and will be hard to break apart other then with chemical means.
Hope this helps!