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Why are acids not stored in metal containers? Containers/vessels made from which materials are safe to store acids?
do bases conduct electricity
turmeric stains on white clothes ,when washed with soap turn red.why?
GIVE TWO EXAMPLES EACH OF AN INSOLUBLE BASE AND A SOLUBLEBASE?
why are toothpastes basic in nature???
IS ENO IS BASE OR ACID???
Factory waste is neutralised before depositing it into the water bodies.give reasons
is sugar solution acidic or basic in nature
Is alcohol acidic or basic?
please give me answers of table 5.3.&5.4.it is my home work that mam give me.fast????plz plz plz!!!!
what is the colour change found in china rose in base and acid
explain the following :-
a. calamine lotion is applied on bee stings
b. base is added to factory waste before it is discharged into river
is lime water a base or acid? if it is a base then how can it be be base becuse lime is acidic in nature?
what are concentrated and dilute acids?
some examples of concentrated and dilute acids-
how to dilute an acid?
Give some examples each of acidic,basic and neutral salt .
an antacid tablet is taken when you suffer from acidity.give reason?
What happens when we add dilute sulphuric acid to lime water? Does the reaction mixture become hot or cool?
names of 5 different types of salts? with their formula,common amd chemical name and 2 uses each.
is oxygen acidic or basic?
please give me also answers of table 5.5 and 5.1, 5.5 plz question is in the book plz plz fast fast???!!!
can u name 10 acids,bases and salts
i m confused
how is litmus paper formed
WHAT IS THE CHEMICAL FORMULA OF QUICK LIME AND SLAKED LIME AND CHOLIRINE?
{I WANT ANSWER FAST MY SCIENCE TOLD ME TO FIND THE ANSWER PLEASE HELP ME MERIT NATION EXPERT AND THE PEOPLE WHO ARE STUDYING WITH ME }
what are alkalis?give one example.
what is the difference between acids bases and salts
Explain the use of china rose petals as indicators.
Name of 10 neutralization reaction in our day-to-day life(not the ones in the chapter)...
which acid is found in the curd?
Why sulphuric acid is known as the king of chemicals
What is an antacid ? Give 2 examples .
Q.3 Name one each of acidic, basic and neutral substances.
What happens when acids react with metal and metal carbonates
why farmers add slaked lime to acidic soil ?
examples of synthetic indicators
What is the original colour of phenolphthalein?
1) Turmeric indicator does not indicate weather the substance is acidic or neutral. Is the statement true? explain.
2) If you get turmeric stains on your clothes while eating food, try to wash it off with soap, the stain becomes red. Why ? Find out how to remove haldi stains from clothes.
i need answers urgently, please do answer these questions, thank you.
What causes acidity in stomach? Why does a doctor recommend an antacid to a person
suffering from acidity.
Ammonia is used in many household products like window cleaners. It turns red
litmus to blue. What is the nature of ammonia?
some acids,bases and salts are commonly used in our daily life .Find out the name of such substance , specify whether they are acid, bases or salts and write their uses?
Which is the base found in bittergourd?
Farmers sometimes sprinkle white lime powder in thier fields.How does this help them?
is weak acid and dilute acid the same.why
what is criss cross method of writing formula
what are acids,bases and salts?? definition plz!!
when turmeric poder reacts with soap it turns red not other colors why?
The wastes of many factories contain acids.Why is it considered necessary to neutralize them before allowing the wastes to flow into water bodies?
Some acids are dangerous , other are not .Explain,giving example.
HCOOK is basic,nutral,or acidic salts
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Syllabus
Why are acids not stored in metal containers? Containers/vessels made from which materials are safe to store acids?
do bases conduct electricity
turmeric stains on white clothes ,when washed with soap turn red.why?
GIVE TWO EXAMPLES EACH OF AN INSOLUBLE BASE AND A SOLUBLEBASE?
why are toothpastes basic in nature???
IS ENO IS BASE OR ACID???
Factory waste is neutralised before depositing it into the water bodies.give reasons
is sugar solution acidic or basic in nature
Is alcohol acidic or basic?
please give me answers of table 5.3.&5.4.it is my home work that mam give me.fast????plz plz plz!!!!
what is the colour change found in china rose in base and acid
explain the following :-
a. calamine lotion is applied on bee stings
b. base is added to factory waste before it is discharged into river
is lime water a base or acid? if it is a base then how can it be be base becuse lime is acidic in nature?
what are concentrated and dilute acids?
some examples of concentrated and dilute acids-
how to dilute an acid?
Give some examples each of acidic,basic and neutral salt .
an antacid tablet is taken when you suffer from acidity.give reason?
What happens when we add dilute sulphuric acid to lime water? Does the reaction mixture become hot or cool?
names of 5 different types of salts? with their formula,common amd chemical name and 2 uses each.
is oxygen acidic or basic?
please give me also answers of table 5.5 and 5.1, 5.5 plz question is in the book plz plz fast fast???!!!
can u name 10 acids,bases and salts
i m confused
how is litmus paper formed
WHAT IS THE CHEMICAL FORMULA OF QUICK LIME AND SLAKED LIME AND CHOLIRINE?
{I WANT ANSWER FAST MY SCIENCE TOLD ME TO FIND THE ANSWER PLEASE HELP ME MERIT NATION EXPERT AND THE PEOPLE WHO ARE STUDYING WITH ME }
what are alkalis?give one example.
what is the difference between acids bases and salts
Explain the use of china rose petals as indicators.
Name of 10 neutralization reaction in our day-to-day life(not the ones in the chapter)...
which acid is found in the curd?
Why sulphuric acid is known as the king of chemicals
What is an antacid ? Give 2 examples .
Q.3 Name one each of acidic, basic and neutral substances.
Q.4 What are the general properties of an acid and a base?Q.5 What is an indicator? Give examples of two natural indicators?Q.6 What is an acid rain? How is it formed? Mention three bad effects of acid rain.Q.7 Name four substances that can serve as indicators.Q.8 Turmeric indicator does not indicate whether the substance is acidic or neutral. Is thestatement true? Explain.Q.9 What is the color of litmus paper which changes its color in acidic solution?Q.10 If few drops of purple-cabbage juice are added to the colorless solution of an acidicmaterial. What would be the color of the resulting solution?Q.11 A few drops of china rose indicator are added to the colorless solution of a chemicalthe resulting solution will become light green. What does it indicate about the natureof the chemical? Q.12 What is a neutralization reaction? Does a neutralization reaction always result in theformation of neutral salt?Q.13 Write a note on uses of bases.Q.14 You are given three unknown liquids an acid other is a base and third is a neutralsubstance. How will you classify the given liquids as acidic, basic and neutral?Q.15 An acidic material is mixed with an equivalent amount of a basic material.(i) What is the reaction called?(ii) What products are formed?Q.16 Explain why(i) Great care should be taken while handling Laboratory acids and bases.(ii) Acidic soil is treated with a base and basic soil is treated with organic matter.Q.17 How is a salt formed?Q.18 What happens when metals and non-metals combine with Oxygen?Q.19 Nancy a class-VII student was performing an experiment in the Chemistry lab. Herteacher instructed her1) Not to waste/smell chemicals2) Not to dispose off all chemicals in the sink.3) Not to mix chemicals haphazardly for example, never add water to acid todilute it; always add acid slowly to water.Why did the teacher advice Nancy to follow the above safety measures?HOTS QUESTIONSQ.1 If you get Turmeric stain on your clothes while eating food, and try to wash it off withsoap, the stain becomes red. Why? Find out how to remove haldi stains from clothes.Q.2 Is the meaning of weak acid the same as that of dilute acid?Q.3 The waste of many factories contain acids. Why is it considered necessary toneutralize them before allowing the waste to flow into water bodies.?What happens when acids react with metal and metal carbonates
why farmers add slaked lime to acidic soil ?
examples of synthetic indicators
What is the original colour of phenolphthalein?
1) Turmeric indicator does not indicate weather the substance is acidic or neutral. Is the statement true? explain.
2) If you get turmeric stains on your clothes while eating food, try to wash it off with soap, the stain becomes red. Why ? Find out how to remove haldi stains from clothes.
i need answers urgently, please do answer these questions, thank you.
What causes acidity in stomach? Why does a doctor recommend an antacid to a person
suffering from acidity.
Ammonia is used in many household products like window cleaners. It turns red
litmus to blue. What is the nature of ammonia?
some acids,bases and salts are commonly used in our daily life .Find out the name of such substance , specify whether they are acid, bases or salts and write their uses?
Which is the base found in bittergourd?
Farmers sometimes sprinkle white lime powder in thier fields.How does this help them?
is weak acid and dilute acid the same.why
what is criss cross method of writing formula
what are acids,bases and salts?? definition plz!!
when turmeric poder reacts with soap it turns red not other colors why?
The wastes of many factories contain acids.Why is it considered necessary to neutralize them before allowing the wastes to flow into water bodies?
Some acids are dangerous , other are not .Explain,giving example.
HCOOK is basic,nutral,or acidic salts