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4 years ago

How a tornado can endanger property and people.

1 answer:

5 0

The powerful winds and flying debris in a tornado can damage or destroy property, ranging anywhere from minor roof damage and downed fences to the complete destruction of well-constructed buildings. People caught in such storms may be struck or crushed by debris and collapsing building, or picked up and hurled by the winds.

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Nitric acid (HNO3) is a strong acid that is completely ionized in aqueous solutions of concentrations ranging from 1% to 10% (1.

Alborosie

Given:

Concentration of HNO3 = 7.50 M

% dissociation of HNO3 = 33%

To determine:

The Ka of HNO3

Explanation:

Based on the given data

[H+] = [NO3-] = 33%[HNO3] = 0.33*7.50 = 2.48 M

The dissociation equilibrium is-

HNO3 ↔ H+ + NO3-

I 7.50 0 0

C -2.48 +2.48 +2.48

E 5.02 2.48 2.48

Ka = [H+][NO3-]/HNO3 = (2.48)²/5.02 = 1.23

Ans: Ka for HNO3 = 1.23

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3 years ago

Why did we change our understanding of where life comes from?

Andru [333]

Answer:

whathappensinthisstory

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3 years ago

According to the graph, what is the instantaneous speed of the object at 5 seconds? *

Savatey [412]

NooooOoOOOOOɪᴏᴏɪᴡᴏᴏɪʀᴇᴡʜʜʙᴠᴇᴠᴅᴊʜʙsʙʙsʙʙᴊᴊᴊᴊʀvesebhreeje

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3 years ago

Read 2 more answers

For the reaction: N2O5(g) \longrightarrow&longrightarrow; 2NO2(g) + 1/2O2(g)

ivanzaharov [21]

The given equation from the problem above is already balance,
N2O5 ---> 2NO2 + 0.5O2
Since, in every mole of N2O5 consumed, 2 moles of NO2 are formed, we can answer the problem by multiplying the given rate, 7.81 mol/L.s with the ratio.
(7.81 mol/L.s) x (2 moles NO2 formed/ 1 mole of N2O5 consumed)
= 15.62 mol/L.s
The answer is the rate of formation of NO2 is approximately 15.62 mol/L.s.

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3 years ago

HELPPP LOOK AT PICTURE

lina2011 [118]

Answer:

it is a square

Explanation:

I hope it will helps you

sorry it's not a true answer

because I want points

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3 years ago