Answer:
A
Explanation:
The rubber is a non-conductin insulator
the metal clamps with teeth and attached wires are the conductors of electrical current
With a physical change you can actually see it change like ice turning into water, then with a chemical change you can't see it change, although within the molecules themselves they change which makes that possible.
Hope this helps!
The molarity of the acid is
0.086 00 mol/L.
HC₂H₃O₂ + NaOH → NaC₂H₃O₂ + H₂O
Since 1 mol of acid reacts with 1 mol of base, we can use the formula
M₁V₁ = M₂V₂
M₁ = ?; V₁ = 50.00 mL
M₂ = 0.1000 mol/L; V₂ = 43.00 mL
M₁ = M₂ ×
= 0.1000 mol/L ×
= 0.086 00 mol/L
Answer:
1. Balanced
2. Unbalanced
3. Unbalanced
Explanation:
<em>Identify which of the following oxidation-reduction reactions are balanced and which are unbalanced in both mass and charge.
</em>
<em>
</em>
<em>1. Ag⁺(aq) + Li(s) → Ag(s) + Li⁺(aq)
</em>
This reaction is balanced in both mass and charge.
<em>2. Fe(s) + Na⁺(aq) → Fe²⁺(aq) + Na(s)
</em>
This reaction is balanced in mass but unbalanced in charge since the charge to the left is +1 and the charge to the right is 2+.
<em>3. K(s) + H₂O(l) → KOH(aq) + H₂(g)</em>
This reaction is balanced in charge but unbalanced in mass since there are 2 atoms of H to the left and 3 atoms of H to the right.
Answer: C. Electrons from the cathode combine with hydrogen cations through reduction reactions.
Explanation: 100% on edg 2021 quiz
