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4 years ago

A line graph that plots distance against _____ shows the motion of an object. speed time velocity direction

Chemistry

1 answer:

Anit [1.1K]4 years ago

8 0

A line graph that plots distance against time shows the motion of an object

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What metal react with acids to form h2 gas?

iogann1982 [59]

metal + acid → salt + hydrogen.zinc + sulphuric acid → zinc sulphate + hydrogen.magnesium + hydrochloric acid → magnesium chloride + hydrogen.

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3 years ago

The pOH of a solution is 9.70. what is the H+ concentration in the solution ?

Scrat [10]

Answer:

The H+ concentration is $10^{-4.3} M$

Explanation:

We know that for any solution,

pOH + pH = 14

Given,

pOH = 9.70,

Therefore using formula,we get,

pH = 14 - pOH,

pH = 14 - 9.70;

pH = 4.30

We also know,

If Concentration of H+ in a solution in C,

Then,

pH = -log(C) ------(Formula 1) and C = $10^{-pH}$ ----(Formula 2)

Therefore,

using formula 2, we get,

C = $10^{-pH}$

C = $10^{-4.30}$ M.

Therefore concentration of H+ in the given solution is $10^{-4.3} M$

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3 years ago

When two metals touch in the mouth, a small shock is created. this is known as a?

Over [174]

When two metals touch in the mouth, a small shock is created. this is known as a galvanic action

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4 years ago

Static electricity happens when electrons pass from one object to another, such as from your hair to a comb as you comb your hai

EleoNora [17]

They attract because they have opposite charges

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3 years ago

What is the tyndall effect

zzz [600]

Answer: Tyndall effect is the scattering of light due dispersed colloidal particles that does not settle in a solution. Colloidal particles constantly moves because of Brownian motion and blocks or hinders light particles to pass through. Colloidal particles are medium sized particles but smaller enough than suspension.

Explanation:

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3 years ago