Your answer is B.
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Answer:
The answer to your question is: more less
Explanation:
I suggest you these answers:
a) PCl₅ (s) ⇒ PCl₃ (s) + Cl₂ (g)
b) ZnBr₂ (aq) + Li₃CO₃ (aq) ⇒ ZnCO₃ (s) + LiBr (aq)
c) C₂H₄ + O₂ ⇒ CO₂ (g) + H₂O (l)
Do you have to balance them?
Answer: 1 dissociation. 2. Hydration. 3. Dissolving.
Explanation:
Answer:
Explanation:
Chemical properties:
These are the properties which involve the chemical reaction.
For example:
Combustion, flammability, toxicity, enthalpy of formation etc are chemical properties.
Reaction with oxygen ( chemical property)
Conduction of heat ( chemical property)
Not flammable (chemical property)
Physical properties:
The property which not involve any chemical reaction it only involve the physical appearance of substance.
For example:
Density, odor, color, texture etc.
Smooth texture (physical property)
Reddish color ( chemical property)
Sink in water ( chemical property)
Answer:
molarity = moles of solute/liters of solution
0.25 M NaOH = 0.25 mol NaOH/L
mass = moles (n) × molar mass (M)
n(NaOH) = 0.25 mol
M(NaOH) = 39.997 g/mol
m(NaOH) = 0.25 mol × 39.997 g/mol = 9.999 g
