It is more energetically stable to do that. Nature prefers to have a low energy state. If you go somewhere in nature you will usually find a low energy state object or material.
Answer:
A. Any substance with a pH above 7.
Explanation:
On the pH scale substances whose value is greater than 7 and less than 14 are termed alkali.
Acids have a pH of less than 7 whereas neutral compounds such as water has pH of 7.
- An alkali is any substance that produces excess hydroxyl ion in solutions.
- Water soluble bases are known as alkali.
- They are usually certain metallic oxides, metallic hydroxides and aqueous ammonia.
Answer:
8.822 × 10¹³ g Co
General Formulas and Concepts:
<u>Chemistry - Atomic Structure</u>
- Reading a Periodic Table
- Using Dimensional Analysis
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
Explanation:
<u>Step 1: Define</u>
9.015 × 10³⁵ atoms Co
<u>Step 2: Identify Conversions</u>
Avogadro's Number
Molar Mass of Co - 58.93 g/mol
<u>Step 3: Convert</u>
<u />
= 8.82189 × 10¹³ g Co
<u>Step 4: Check</u>
<em>We are given 4 sig figs. Follow sig fig rules and round.</em>
8.82189 × 10¹³ g Co ≈ 8.822 × 10¹³ g Co