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Makovka662 [10]
2 years ago
10

In an attempt to study the variation of the boiling point of mixture (B + C), the teacher immerses a thermometer probe into the

mixture inside the test tube. Then, she connects the probe to the computer interface and starts collecting temperature data during the boiling phase. After 10 minutes, a graph is obtained.
To which physical state will the above mixture change after boiling? Which of the above graphs do you expect to obtain? why?​

Chemistry
1 answer:
grandymaker [24]2 years ago
3 0

Answer:

All answers attached in the pictures above.

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6 protons, 6 neutrons, and 5 electrons
4 0
2 years ago
If 3.0 moles of x and 4.0 moles of y react according to the hypothetical reaction below, how many moles of the excess reactant w
Lesechka [4]
Firstly the limiting reactant should be identified. Limiting reactant is the reactant that is in limited supply, the amount of product formed depends on the moles present of the limiting reactant.

the stoichiometry of x to y = 1:2
1 mole of x reacts with 2 moles of y
if x is the limiting reactant, there are 3 moles of x, then 6 moles of y should react, however there are only 4 moles of y. Therefore y is the limiting reactant and x is in excess.
4 moles of y reacts with 2 moles of x 
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6 0
2 years ago
When the oxide of generic metal m is heated at 25.0 °c, only a negligible amount of m is produced. o2m(s ----&gt; m(s o2(g delta
Len [333]
(1) MO₂(s) + C(s) → M(s) + CO₂ (g),  ΔG₁ = 288.9 kJ/mol
(2) C(s) + O₂(g) → CO₂(g),   ΔG₂ = -394.4 kJ/mol
By adding both equations 1 + 2 we get the coupled reaction:
MO₂(s) + 2 C(s) + O₂(g) → M(s) + 2 CO₂(g)
ΔG⁰ = ΔG₁ + ΔG₂ 
       = 288.9 + (-394.4) = -105.5 kJ/mol = -105500 J/mol
Temperature T = 25 + 273.15 = 298.15 K
Molar gas constant R = 8.314 J/mol.K
K = e^{ \frac{-dG0}{RT} }
   = e^{ \frac{105500}{8.314 x 298.15} } 
    = 3.05 x 10¹⁸
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Age
cupoosta [38]

Answer:

Option (2)

Explanation:

Since the amount of each sample is the same, we are looking for the metal with the greatest density, which is copper.

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There are many advantages to using nuclear power to generate electricity. There are also many disadvantages. Choose all of the a
elena55 [62]

Answer:

abc

Explanation:

6 0
3 years ago
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