When the leaves of the Mimosa are touched, there is a change in the concentration gradient of potassium and chloride ions within two types of cells, the flexor and extensor cells, within the pulvinus of the plant.
The chemical reaction between acetic acid and sodium hydroxide carbonate produces carbon dioxide which burst out in the form of bubbles
Galvanization is the process of applying a protective layer of zinc on a metal. It is a very common method of preventing the rusting of iron
II.
it's chemical change .Galvanization is the process of applying a protective layer of zinc on a metal. It is a very common method of preventing the rusting of iron.
Physical Change Chemical Change
When a substance undergoes a physical change, its composition remains the same despite its molecules being rearranged.
When a substance undergoes a chemical change, its molecular composition is changed entirely. Thus, chemical changes involve the formation of new substances.
Physical change is a temporary change.
A chemical change is a permanent change.
A Physical change affects only physical properties i.e. shape, size, etc.
Chemical change both physical and chemical properties of the substance including its composition
Manoj Jindal arranged a lunch party for some of his friends. The expense of the lunch are partly constant and partly proportional to the number of guests. The expenses amount to Rs 650 for 7 guests and Rs 970 for 11 guests .
Denote the constant expense by Rs x and proportional expense per person by Rs y and answer the following questions.
1) proportional expense for each person
2) the fixed expense for the party
3) if there would be 15 guests at the launch party then what amount mr Jindal has to pay
Answers & Comments
Verified answer
Explanation:
When the leaves of the Mimosa are touched, there is a change in the concentration gradient of potassium and chloride ions within two types of cells, the flexor and extensor cells, within the pulvinus of the plant.
The chemical reaction between acetic acid and sodium hydroxide carbonate produces carbon dioxide which burst out in the form of bubbles
Galvanization is the process of applying a protective layer of zinc on a metal. It is a very common method of preventing the rusting of iron
II.
it's chemical change .Galvanization is the process of applying a protective layer of zinc on a metal. It is a very common method of preventing the rusting of iron.
Physical Change Chemical Change
When a substance undergoes a physical change, its composition remains the same despite its molecules being rearranged.
When a substance undergoes a chemical change, its molecular composition is changed entirely. Thus, chemical changes involve the formation of new substances.
Physical change is a temporary change.
A chemical change is a permanent change.
A Physical change affects only physical properties i.e. shape, size, etc.
Chemical change both physical and chemical properties of the substance including its composition
Answer:
Manoj Jindal arranged a lunch party for some of his friends. The expense of the lunch are partly constant and partly proportional to the number of guests. The expenses amount to Rs 650 for 7 guests and Rs 970 for 11 guests .
Denote the constant expense by Rs x and proportional expense per person by Rs y and answer the following questions.
1) proportional expense for each person
2) the fixed expense for the party
3) if there would be 15 guests at the launch party then what amount mr Jindal has to pay
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