4 years ago

Which of the following statements is not correct?

Chemistry

1 answer:

Ahat [919]4 years ago

8 0

A is incorrect as some ionic compounds can be stronger than covalent compounds.

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Acid dissociation reaction for E-amino group (side chain of Lys): (R)E-NH3+ # (R)E-NH2 + A. For a weak acid such as the side cha

Andrew [12]

Answer:

0.1

Explanation:

$According \ to \ Henderson \ Hasselbalch \ equation:$

$pH = pka + log \dfrac{[A^-]}{[HA]}$

From the given question;

$log \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=pH - pKa$

$\implies log \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=9 -10$

$\implies log \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=-1$

$\implies \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=10^{-1}$

$\implies \dfrac{[\varepsilon- NH_2]}{[\varepsilon - NH_3^+]}=0.1$

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3 years ago

The word “covalent” can be broken into two parts: “co” and “valent.” The “co” part means

Setler79 [48]

Answer:

Outer electrons.

Explanation:

All bonds are localized bonds formed between two atoms by the donation of electrons from each atom.

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3 years ago

It takes Serina 0.25 hours to drive to school. Her route is 16 meters long. What is

Yakvenalex [24]

Answer:

60 (1 hour) × 0.25 = 15 minutes

15 ÷ 16 = 0.9375 meters per minute

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4 years ago

WILL GIVE BRAINLIST NEED ASAP

Nookie1986 [14]

V=n/M

V=2.5/6=0.416 L

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2 years ago

(1) the plant which derive their food from the dead and decaying organic matter are called: (A) parasite (B) saprophytes (C) sym

Luden [163]

Answer:

(B) saprophytes

Explanation:

parasite-an organism that lives on or in a host organism and gets its food from or at the expense of its host.

symbiotic-an evolved interaction or close living relationship between organisms from different species, usually with benefits to one or both of the individuals involved

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3 years ago