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give me 10 examples of reversible and irriversible changes and the ans can only give by meritnation experts and the ans will reach to me in only 1 day otherwise i will disconect you
MELTING OF ICE IS A PHYSICAL CHANGE.WHY
Burning of candle is physical change or chemical change
is burning of candle a reversible or irreversible change?
is melting of wax a reversible or irreversible change?
give four examples of periodic changes.
Give examples of slow, fast, reversible, irreversible changes
DISSOLVING SUGAR IN WATER IS A REVERSIBLE CHANGE?
a potter shapes pots out of clay. He then bakes the pots in an oven. Identify the reversible and irreversible changes taking place in the process.Give reason to support of your answer
please give examples of reversable and irreversable change
WHAT IS NON PERIODIC CHANGE
What is the difference between reversible and irreversible change?
NAME THREE WASTE PRODUCTS THAT WE EXCRETE?
What is difference between slow change and fast change?
Explain how burning of LPG in a gas stove involves both physical and chemical changes.
Give any other example of the same kind from everyday life.
why is boiling of potato a chemical change even though there is no change in property?
what is physical change, chemical change, slow change, fast change, periodic change, non-periodic change, desirable change and undesirable change ?
all physical changes are reversible and only chemical changes are irreversible.do you agree?give reasons and examples.
who invented television?
identify two changes that can be reversed while preparing dishes at home
What are periodic and non-periodic changes ?
why do pipes usually crack in winter?
why are iron water pipes galvanised
define-1. slow change 2. fast change
ans needed urgently
Why do changes occur around us? Explain it with examples.
why is germination of seeds a chemical change?
HOT QUESTION: THINK AND ANSWER:
1) Tearing of paper is irreversible. It is, therefore , a chemical change. Do you agree? Give reasons.
2) A potato remains a potato even after it is cooked. Therefore, cooking is a physical change. Do you agree? Give reasons.
3) When sugar dissolves in water, it disappears. That means it must have changed into a new substance. Therefore, dissolving is chemical change. Do you agree? Give reasons.
Mention two changes that can be brought by applying pressure
what is the difference between rolling of chapatti from doug and baking of chapatti
If we break a glass it is reversible change or irreversible?
Why is it not advisable to sieve wheat flour?
Is cutting of paper an irreversible or reversible change? Our teacher told us that cutting of paper is a reversible change as chemical property is not change only size is decreased so it sould not come under irreversible change
Is cutting paper a reversible change or a irreversible change? Can you tape the cutten paper into the original substance?!
what is the difference between the following changes
i rolling of chapatti and baking of chapati
Explain why the idli batter rises when kept overnight without refrigeration
What is a periodic change??
Burning of candle is a physical or a chemical change . Why ?
pls explain .
A Potter shapes pots out of clay then bakes the pots in an oven . Identify the reversible ans irreversible changes taking place in the process .
list some examples of
contraction in solid, liquid and gas.
give two examples to show that when substances are mixed ,it may result in a chemical or a physical change depending on the conditions
What is Reversible and Irreversible changes ?
respiration of animals is an reversible change or irreversible change ?
Light from the Sun reaches us in nearly
A. 8 secs
B. 800 secs
C. 480 secs
Why do we need to study change ? Explain
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Syllabus
give me 10 examples of reversible and irriversible changes and the ans can only give by meritnation experts and the ans will reach to me in only 1 day otherwise i will disconect you
MELTING OF ICE IS A PHYSICAL CHANGE.WHY
Burning of candle is physical change or chemical change
i) To halt the train
ii) To allow expansion & Shrinkage
iii) For people to cross the track
iv) None of the above
is burning of candle a reversible or irreversible change?
is melting of wax a reversible or irreversible change?
give four examples of periodic changes.
Give examples of slow, fast, reversible, irreversible changes
DISSOLVING SUGAR IN WATER IS A REVERSIBLE CHANGE?
a potter shapes pots out of clay. He then bakes the pots in an oven. Identify the reversible and irreversible changes taking place in the process.Give reason to support of your answer
please give examples of reversable and irreversable change
(i) When water boils
(ii) When ice melts
(iii) When water freezes to ice
(iv) When water vapour condenses to water
(A) In (i), (ii) & (iii)
(B) In (iii) only
(C) In (iv) only
(D) In both (iii) & (iv).
Ans is D but how?
WHAT IS NON PERIODIC CHANGE
Say whether True or false
What is the difference between reversible and irreversible change?
NAME THREE WASTE PRODUCTS THAT WE EXCRETE?
What is difference between slow change and fast change?
Explain how burning of LPG in a gas stove involves both physical and chemical changes.
Give any other example of the same kind from everyday life.
why is boiling of potato a chemical change even though there is no change in property?
i) Nitrogen
ii) Oxygen
iii) Water
iv) Magnesium
what is physical change, chemical change, slow change, fast change, periodic change, non-periodic change, desirable change and undesirable change ?
all physical changes are reversible and only chemical changes are irreversible.do you agree?give reasons and examples.
who invented television?
identify two changes that can be reversed while preparing dishes at home
What are periodic and non-periodic changes ?
why do pipes usually crack in winter?
why are iron water pipes galvanised
define-1. slow change 2. fast change
ans needed urgently
Why do changes occur around us? Explain it with examples.
why is germination of seeds a chemical change?
HOT QUESTION: THINK AND ANSWER:
1) Tearing of paper is irreversible. It is, therefore , a chemical change. Do you agree? Give reasons.
2) A potato remains a potato even after it is cooked. Therefore, cooking is a physical change. Do you agree? Give reasons.
3) When sugar dissolves in water, it disappears. That means it must have changed into a new substance. Therefore, dissolving is chemical change. Do you agree? Give reasons.
Mention two changes that can be brought by applying pressure
Regards
Alishba
what is the difference between rolling of chapatti from doug and baking of chapatti
If we break a glass it is reversible change or irreversible?
Say if the following are Reversible or Irreversible changes:
Why is it not advisable to sieve wheat flour?
2. What is blood rain ?
Is cutting of paper an irreversible or reversible change? Our teacher told us that cutting of paper is a reversible change as chemical property is not change only size is decreased so it sould not come under irreversible change
Is cutting paper a reversible change or a irreversible change? Can you tape the cutten paper into the original substance?!
what is the difference between the following changes
i rolling of chapatti and baking of chapati
Explain why the idli batter rises when kept overnight without refrigeration
a. increases b decreases c remain unchanged d none
What is a periodic change??
Burning of candle is a physical or a chemical change . Why ?
pls explain .
A Potter shapes pots out of clay then bakes the pots in an oven . Identify the reversible ans irreversible changes taking place in the process .
list some examples of
contraction in solid, liquid and gas.
give two examples to show that when substances are mixed ,it may result in a chemical or a physical change depending on the conditions
What is Reversible and Irreversible changes ?
respiration of animals is an reversible change or irreversible change ?
change or irreversible change
Light from the Sun reaches us in nearly
A. 8 secs
B. 800 secs
C. 480 secs
D. 960 secsWhy do we need to study change ? Explain