<span>The Answer </span>should be<span> .074 M</span>
The answer is c) Electrical energy
pyramidal, if you have a molecule kit, i would strongly recommend watching a video of someone using a kit explaining the different shapes and following along. It helps a lot!
Answer:
Water
Explanation:
Since water is a compound compose of fixed amount of Hydrogen and oxygen, it can only be broken down by a chemical means.
Mean while, antimony, carbon and sulfur are all elements and can not be split further.
Answer:
1 × 10⁻² M
Explanation:
<em>What is the [H₃O⁺] in a solution with [OH⁻] = 1 × 10⁻¹² M?</em>
Step 1: Given data
Hydroxile ion concentration ([OH⁻]): 1 × 10⁻¹² M
Step 2: Calculate the concentration of the hydronium ion
Let's consider the self-dissociation of water.
2 H₂O(l) ⇄ H₃O⁺(aq) + OH⁻(aq)
We can calculate the concentration of the hydronium ion using the ion product of water.
Kw = 10⁻¹⁴ = [H₃O⁺] [OH⁻]
[H₃O⁺] = 10⁻¹⁴ / [OH⁻] = 10⁻¹⁴ / 1 × 10⁻¹² = 1 × 10⁻² M