Answer:
ScCl₂
General Formulas and Concepts:
<u>Chemistry</u>
- Reading a Periodic Table
- Reaction Prediction
- Determining Chemical Compounds
Explanation:
<u>Step 1: Define</u>
Scandium (II)
Cl
<u>Step 2: Determine Charges</u>
Sc²⁺
Cl⁻
<u>Step 3: Predict Compound</u>
<em>We need to balance out the charges so the overall charge is 0.</em>
ScCl₂
<u>Step 4: Reaction</u>
RxN: Sc²⁺ + Cl₂ → ScCl₂
The answer would be B fossil fuel is used it cars so increasing human population therefore would increase the burning of fossil fuels
Answer: five carbon atoms forms a ring. In adjacent two carbon atoms
An hydroxyl group (-OH) is attached. Molecular formula is
C5H8(OH)2
Explanation:
KOH is an Arrhenius base and increases the concentration of hydroxide ions when added to water.
Answer : The correct option is, (C) ΔS (surroundings) = 100 J/K
Explanation :
As we know that:
ΔS (total) = ΔS (system) + ΔS (surroundings)
When the reaction is spontaneous ΔS (total) > 0 , that means positive value.
When the reaction is non-spontaneous ΔS (total) < 0 , that means negative value.
As we are given that:
ΔS (system) = -100 J/K (for spontaneous reaction)
Thus, the ΔS (surroundings) must be greater than ΔS (system) that means positive value.
So, ΔS (surroundings) = 100 J/K
Hence, the correct option is, (C) ΔS (surroundings) = 100 J/K
