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Anika [276]
3 years ago
13

Which compound is most likely a powerful and dangerous acid? H2S HBr Li2O LiBR

Physics
2 answers:
sattari [20]3 years ago
6 0

HBr is the most powerful and dangerous acid .

Explanation:

A strong acid is one that instantly disunites or grants its protons in suspension. HBr is a strong acid. HBr is powerful than HCl or HF because the overlapping of a 1s-orbital and a 4p-orbital is surprisingly small, thus the binding is weak so splitting is very easy..

BARSIC [14]3 years ago
5 0

Answer: HBr is a powerful and dangerous acid

Explanation:

HBr gives hydronium ions (H^+) in its aqueous solution and presence of large amount of ions in the solution makes it corrosive in nature. This is because when these ions present in the solution comes in contact with any of the objects they tends to neutralize their charge and due to this action of ions we observe corrosive nature of an acid.

Chemical equation for HBr dissociating into ions is given as:

HBr(aq)\rightarrow H^+(aq)+Br^-(aq)

Hence ,HBr is a powerful and dangerous acid. Where as H_2S,Li_2O\text{ and }LiBr are gas , basic oxide and salt respectively.

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Answer:

The acceleration due to gravity at Pluto is 0.0597 m/s^2.

Explanation:

Length, L = 1 m

10 oscillations in 257 seconds

Time period, T = 257/10 = 25.7 s

Let the acceleration due to gravity is g.

Use the formula of time period of simple pendulum

T = 2\pi\sqrt{\frac{L}{g}}\\\\25.7 = 2 \times 31.4\sqrt{\frac{1}{g}}\\\\g = 0.0597 m/s^2

7 0
3 years ago
An archer shoots an arrow 75 m distant target; the bull's-eye of the target is at the same height as the release height of the a
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Answer:

16.25^{\circ}

Explanation:

R = Horizontal range of projectile = 75 m

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g = Acceleration due to gravity = 9.81\ \text{m/s}^2

Horizontal range is given by

R=\dfrac{v^2\sin2\theta}{g}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{Rg}{v^2}}{2}\\\Rightarrow \theta=\dfrac{\sin^{-1}\dfrac{75\times 9.81}{37^2}}{2}\\\Rightarrow \theta=16.25^{\circ}

The angle at which the arrow is to be released is 16.25^{\circ}.

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3 years ago
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What is an improvement of an invention ?
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Answer: Improvement Invention means any CCIA Invention and CCIA's rights as a joint owner in a Joint Invention that is sufficiently different from the scope of a Licensed Patent to be separately patentable, and covered by the claims of Licensed Patents.

4 0
3 years ago
A Thomson's gazelle can run at very high speeds, but its acceleration is relatively modest. A reasonable model for the sprint of
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Answer:

The gazelles top speed is 27.3 m/s.

Explanation:

Given that,

Acceleration = 4.2 m/s²

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We need to calculate the gazelles top speed

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Hence, The gazelles top speed is 27.3 m/s.

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3 years ago
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