Acid and alkali solution

Presentation

•

Science

•

9th Grade

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Practice Problem

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Hard

Sri Ananda

Used 18+ times

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10 Slides • 7 Questions

Acid and alkali solution

from the formula of acid, we see that one element is common to them all. What is the element?

The importance of hydrogen ions

All of acids dissolve in water to produce hydrogen ion, H+
All of alkalis dissolve in water to produce hydroxide ion, OH-
in water, the concentration of H+ and OH- are equal
An indicator, like litmus, is affected by the presence of H+ or OH- ions

LItmus paper

The hydrogen ions in acid solution make litmus go RED
The hydroxide ions in alkali solution make litmus go BLUE

Fill in the Blanks

acid solution: if the concentration of H+ is

Type answer...

than OH-

Fill in the Blanks

which ion is in excess in an alkali solution

Type answer...

Multiple Select

Which ions are present in:

Nitric acid solution

hydogen ion

H+

hydroxide ion

OH-

Metal oxide and non metal oxide

Non metal generally form acidic oxides thst dissolve in water to form acidic solution
Metals form oxides that are solids. These oxides give alkaline solution (basic oxide)

The sulfuric acid clouds of venus are the product of great volcanic activity

SO3 + H2O => H2SO4

Fill in the Blanks

Non metal oxides generally form

Type answer...

Multiple Select

These are non metal oxides

CO2

NO2

CaO

K2O

Multiple Select

These are metal oxides

MgO

SO2

Na2O

CO2

Multiple Choice

the atmosphere of venus is covered by....

sulfuric acid

nitric acid

phosphoric acid

citric acid

Acid and alkali solution

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