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Decomposition starts with one compound on the reactants side.
Answer:
RxN: Na₂CO₃ (aq) + 2HCl (aq) → 2NaCl (aq) + H₂CO₃ (aq)
NIE: n/a
Explanation:
Step 1: Predict (Double Replacement)
Na₂CO₃ (aq) + HCl (aq) → NaCl (aq) + H₂CO₃ (aq)
Step 2: Balance
Na₂CO₃ (aq) + 2HCl (aq) → 2NaCl (aq) + H₂CO₃ (aq)
Step 3: Write Total Ionic Equation
2Na⁺ (aq) + CO₃²⁻ (aq) + 2H⁺ (aq) + 2Cl⁻ (aq) → 2Na⁺ (aq) + 2Cl⁻ (aq) + 2H⁺ (aq) + CO₃²⁻ (aq)
Step 4: Remove Spectator Ions
- Na⁺
- CO₃²⁻
- H⁺
- Cl⁻
Step 5: Write Net Ionic Equation
None.
Answer:
D. The data supported the hypothesis
Explanation:
The data shows that rats fed a normal diet with the addition of vitamins gained a higher average weight gain in the period of 3 months, compared to rats fed a normal diet. This supports the scientists' hypothesis of "Young rats that had vitamins added to their food would gain weight faster than young rats fed a normal diet."
Which.i think its the answer