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2 years ago

Which statement best describes the properties of sucrose?

Chemistry

2 answers:

crimeas [40]2 years ago

6 0

Answer:

D. They are different from the properties of carbon, oxygen, and hydrogen.

Step-by-step explanation:

Carbon, oxygen, and hydrogen are all elements.

Sucrose is a compound containing carbon, oxygen, and hydrogen. Its properties are different from those of its elements.

For example, carbon is a black solid, while oxygen and hydrogen are colourless gases. Sucrose is a white solid.

Anuta_ua [19.1K]2 years ago

3 0

Answer:

D. They are different from the properties of carbon, oxygen, and hydrogen.

Explanation:

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2 years ago

Given the following equilibrium constants: Kb B(aq) + H2O(l) ⇌ HB+(aq) + OH−(aq) 1/Kw H+(aq) + OH−(aq) ⇌ H2O(l) What is the equi

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Explanation:

The given chemical equations follows:

Equation 1: $B(aq.)+H_2O(l)\rightleftharpoons HB^+(aq.)+OH^-(aq.);K_b$

Equation 2: $H^+(aq.)+OH^-(aq.)\rightleftharpoons H_2O(l);\frac{1}{K_w}$

The net equation follows:

$B(aq.)+H^+(aq.)\rightleftharpoons HB^+(aq.);K_c$

As, the net reaction is the result of the addition of first equation and the second equation. So, the equilibrium constant for the net reaction will be the multiplication of first equilibrium constant and the second equilibrium constant.

The value of equilibrium constant for net reaction is:

$K_c=K_1\times K_2$

We are given:

$K_1=K_b$

$K_2=\frac{1}{K_w}$

Putting values in above equation, we get:

$K_c=K_b\times \frac{1}{K_w}=\frac{K_b}{K_w}$

Hence, the value of $K_c$ for the net reaction is $\frac{K_b}{K_w}$

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