Answer:
Zinc doesn't react with water.
Explanation:
It forms a layer of insoluble zinc hydroxide.
For number one, the reaction is the neutralization of a strong acid and a strong base to yield a salt and water. The strong acid is the HCl and the strong base is NaOH. The salt is NaCl.
For number two, the equation is balanced. Na in the reactant side has one atom and also in the product side. O has only one atom in the product and in the reactant. There are 2H’s in the reactant and in the product side (present in H2O, the 2 in H stands for 2 atoms of H). One atom of Cl is present in the reactant and product side.
For number three, the reactants are NaOH-sodium hydroxide and HCl-hydrogen chloride(hydrochloric acid). The products are NaCl-sodium chloride and H2O-water.
Hello!
An antacid tablet containing 0.50 g of NaHCO3 is dissolved in 250 mL of water. What is the molar concentration of NaHCO3 in the solution ?
M (Molar Concentration or Molarity) = ? (in mol/L)
m (mass) = 0.50 g
V (volume) = 250 mL → 0.25 L
MM (Molar Mass of NaHCO3)
Na = 1*(23u) = 23 u
H = 1*(1u) = 1 u
C = 1*(12u) = 12 u
O = 3*(16u) = 48 u
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MM (Molar Mass of NaHCO3) = 23 + 1 + 12 + 48 = 84 g/mol
Answer:
The Molar Concentration is approximately 0.024 mol/L
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A) high ph and low ph
B) low and high ph
c) high and high ph
D) low and low ph
its b
A solution containing HCl, or Hydrochloric Acid, would likely have a low pH due to its acidic nature which greatly increases the amount of Hydronium ions in the solution and thus lowers the pH often below 7.
A solution containing HCl, or Hydrochloric Acid, would likely have a low pH. The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14 with 7 as neutral. Since HCl is a strong acid, it will greatly increase the amount of Hydronium ions (H₃O⁺) in the solution, thus making the pH of the solution low, often below 7.
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B. Chocolate
C. Lactase
D. Orange juice
B. dry
C. puffed
D. tasty
Answer:
A. dense
Explanation: