Answer:
HBr + KOH = KBr + H2O
3 HF + Fe(OH)3 = FeF3 + 3 H2O
2 HCl + Ca(OH)2 = CaCl2 + 2 H2O
Explanation:
Answer:
-4.59°C
Explanation:
Let's see the formula for freezing point depression.
ΔT = Kf . m . i
ΔT = Freezing T° of pure solvent - Freezing T° of solution
Kf = Freezing constant. For water if 1.86°C/m
m = molality (moles of solute in 1kg of solvent)
i = Van't Hoff factor.
0°C - Freezing T° of solution = 1.86°C /m . 1.30m . 1.9
Freezing T° of solution = - (1.86°C /m . 1.30m . 1.9)
Freezing T° of solution = - (1.86°C/m . 1.30m . 1.9) → -4.59°C
NaCl → Na⁺ + Cl⁻
High values of Ksp greater than 1 infer that the solid phase is relatively soluble and the chemical reaction proceeds readily to the right. This is because the formula for ksp is a ratio between the products and reactants. A ksp value greater than 1 means that there are more products than reactants; thus, favoring the forward reaction.
The answer is homogeneous mixture. It is a mixture which has uniform composition and properties all throughout. Mixtures can be separated by physical processes. Mixtures are systems that consist of two or more substances which are mixed but not chemically combined.
Answer:
Fortunately, Earth retains heat fairly well, so humans wouldn't freeze instantly. Without the Sun's rays, all photosynthesis on Earth would stop. All plants would die and, eventually, all animals that rely on plants for food — including humans — would die, too.