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slava [35]
3 years ago
9

What is common between a fish and a chameleon​

Chemistry
1 answer:
valentinak56 [21]3 years ago
8 0

Answer:

Convergence of specialised behaviour, eye movements and visual optics in the sandlance (Teleostei) and the chameleon (Reptilia) ... Despite its underwater lifestyle, this fish displays visual behaviour and rapid strikes for prey that are remarkably similar to those of the chameleon

Explanation:

Hope this helps u

crown me as brainliest:)

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The equilibrium constant for the following reaction: H2(g) + Br2(g) ↔ 2HBr (g) is 1.65 x 103 at a certain temperature. Find the
Aleks [24]

Answer:

6.97 atm was the equilibrium pressure of HBr .

Explanation:

The value of the equilibrium constant =K_p=1.65\times 10^3

H_2+Br_2\rightleftharpoons 2HBr

Initially:

0             0                 7.10 atm

At equilibrium

x              x                 (7.10-2x)

The expression of equilibrium constant can be written as:

K_p=\frac{p_{HBr}}{p_{H_2}\times p_{Br_2}}

1.65\times10^3=\frac{(7.10-2x)}{x^2}

Solving for x:

x = 0.065

Partial pressure of HBr at equilibrium :(7.10 - 2 × 0.065) atm = 6.97 atm

6.97 atm was the equilibrium pressure of HBr .

7 0
3 years ago
What are the symbols, atomic mass and abundance in nature of the isotope boron-11
Aneli [31]
  1. The chemical symbol of the isotope boron-11 is ¹¹B.
  2. The atomic mass of the isotope boron-11 is equal to 11.009306.
  3. The abundance in nature of the isotope boron-11 is equal to 80.1%.

<h3>What is an isotope?</h3>

An isotope can be defined as the atom of a chemical element that has the same number of protons but different number of neutrons. This ultimately implies that, the isotopes of an element have the same atomic number (number of protons) but different atomic mass (number of neutrons).

In Chemistry, there are two main isotopes of boron and these include the following:

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Boron-11 is the most stable isotope of boron and it is characterized by the following:

  1. The chemical symbol of the isotope boron-11 is ¹¹B.
  2. The atomic mass of the isotope boron-11 is equal to 11.009306.
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Make them go instinct

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No one wants cats taking over the whole world

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