Answer: base times height
Explanation:
Answer:
1x10⁻¹²
Explanation:
- Cu₂S(s) ⇌ 2Cu⁺(aq) + S²⁻(aq)
At equilibrium:
The equilibrium constant for the the reaction can be written as:
[Cu⁺] is squared because it has a stoichiometric coefficient of 2 in the reaction. <em>Cu₂S has no effect on the constant because it is a solid</em>.
Now we can <u>calculate the equilibrium constant</u>:
- Keq = (1.0x10⁻⁵)² * 1.0x10⁻² = 1x10⁻¹²
Answer:
False, the object is stationary therefore the object is balanced.
Explanation:
Answer:
A crack in earth's crust is called a fault also known as a "fracture"
Answer:
5.5 × 10²² formula units Al₂O₃
General Formulas and Concepts:
<u>Chemistry - Stoichiometry</u>
- Reading a Periodic Table
- Dimensional Analysis
- Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.
Explanation:
<u>Step 1: Define</u>
9.3 g Al₂O₃
<u>Step 2: Define conversions</u>
Avogadro's Number
Molar Mass of Al - 26.98 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of Al₂O₃ - 2(26.98) + 3(16.00) = 101.96 g/mol
<u>Step 3: Convert</u>
<u /> = 5.4928 × 10²² formula units Al₂O₃
<u>Step 4: Check</u>
<em>We are given 2 sig figs. Follow sig fig rules.</em>
5.4928 × 10²² formula units Al₂O₃ ≈ 5.5 × 10²² formula units Al₂O₃