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Ask QuestionPosted by Vansh Panwar 5 years, 9 months ago
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Posted by Vishal Yadav 5 years, 9 months ago
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Meghna Thapar 5 years, 7 months ago
Dalton’s theory is the basic theory about the nature of matter. According to his theory, all matter, whether a solid, liquid or gas or an element, compound or mixture, is composed of small particles called atoms.
The Postulates of Dalton's Atomic Theory:
- All matter is made up of very tiny particles called atoms.
- Atoms are indivisible particles, which can neither be created nor destroyed in a chemical reaction.
- The atoms of a given element are identical in mass and chemical properties.
- Atoms of different elements have different masses and chemical properties.
- Atoms combine in the ratio of small whole numbers to form compounds.
- The relative number and types of atoms are constant in a given compound.
Posted by Prashant Kumar 5 years, 9 months ago
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Hariom Dalal 5 years, 9 months ago
Posted by Palak Chaturvedi 5 years, 9 months ago
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Posted by E Verma 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
Peptic ulcers are open sores that develop on the inside lining of your stomach and the upper portion of your small intestine. The most common symptom of a peptic ulcer is stomach pain.
Peptic ulcers include:
- Gastric ulcers that occur on the inside of the stomach
- Duodenal ulcers that occur on the inside of the upper portion of your small intestine (duodenum)
Posted by Vedika Šäbłè 5 years, 9 months ago
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Posted by Etherious Dragneel 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
Calcium sulfate CaSO4
<div style="visibility: hidden; overflow: hidden; position: absolute; top: 0px; height: 1px; width: auto; padding: 0px; border: 0px none; margin: 0px; text-align: left; text-indent: 0px; text-transform: none; line-height: normal; letter-spacing: normal; word-spacing: normal;"> <div id="MathJax_Hidden"> </div> </div>Aluminium Nitrite : AlN
Posted by Shaili Shree 5 years, 9 months ago
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Posted by Sai Sourav Jena 5 years, 5 months ago
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Meghna Thapar 5 years, 7 months ago
The reproduction which takes place by the combination of special reproductive cells called '*** cells' is called sexual reproduction.
Posted by Alagarasi Sekar 5 years, 9 months ago
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Ayush Sharma 5 years, 9 months ago
Yogita Ingle 5 years, 9 months ago
Membrane biogenesis is the process which involves the synthesis of cell membrane with the help of proteins and lipids. Endoplasmic reticulum is responsible for the synthesis of these membranes.
Membranes synthesised by this process of membrane biogenesis help in dividing the cell into structural and functional compartments. Membranes of the cell altogether are called as endomembrane system. The endomembrane system includes different membranes suspended in the cytoplasm and the plasma membrane.
Posted by Ishika Sharma 5 years, 9 months ago
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Posted by Anant Sinha 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
Molar mass of glucose, C6H12O6 = 6×12+12×1+16×6 = 180g
Given Mass of the glucose, C6H12O6 = 100g
As we know that, Number of moles = mass of an element/molar mass of an element
Hence Number of moles glucose, C6H12O6 = 100g/180g = 0.55 moles.
Posted by Divya Verma 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
1.Unsaturated compounds are oxidized by alkaline potassium permanganate with the disappearance of its pink colour therefore when cooking oil and saturated compound is treated with a few drops of Alkaline KMnO4 solution the pink colour of KMnO4 disappears . However with butter which contain saturated compound the pink colour of KMnO4 does not disappear.
2. We can also distinguish chemically between a cooking oil and a butter by the bromine water test.
Cooking oil decolourises bromine water showing that it is an unsaturated compound.
Butter does not decolourises bromine water showing that it is a saturated compound.
Posted by Tushar Khandelwal 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
(i) Healthy is a state of physical,social and mental well being while disease free is a state of absence of body comfort.
(ii)A healthy person can be disease free but a disease free person cannot be a healthy person.
Posted by M Beats 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
The advantages of classifying organisms are as follows:-
i) It tells about variation in living organisms.
ii) Information about identification of organisms found in world is available.
iii) Information about interrelation, origin simplicity and complexity of organism is available.
iv) More information can be obtained in lesser time.
v) It gives ideas about the development process of organisms.
Posted by Pallavi Gupta 5 years, 9 months ago
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Juri Kalita 5 years, 9 months ago
Rakhi Vasodiya11 5 years, 9 months ago
Posted by Pratyaksha Dubey 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
1)The health of all organism will depend on their surrounding or their environment.Our social environment is an important factor in our individual health.
2)Public cleanliness is important for individual health(If no agency is ensuring that garbage is collected and disposed,if no one takes responsibility of clearing the drains,if there are heap of garbage and thrash littered here and there,if there is open drain water lying stagnant around,the possibility of poor health increases)
3)We need food for health and food will have to earn by doing work.For this, opportunity to do work has to be available.Good economic condition and jobs are therefore needed for individual health.
4)We need to be happy in order to be truly healthy.If we mistreat each other and are afraid of each other,we cannot be healthy or happy.Social equality and harmony are important for individual health.
Posted by Antash Jha 5 years, 9 months ago
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Posted by Kamal Arbat 5 years, 9 months ago
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Posted by Ankit Bharti 5 years, 9 months ago
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Posted by Vinit Nagpure 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
Since no frction work no gravity work is acting on the body of mass 2 kg,
The K.E energy is only due to the work upon mass due to force 10 N.
Therefore,
K.E. = F x Displacement {From Work Energy Theorem}
= 10 J.
Posted by Meha Meha 5 years, 9 months ago
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Posted by Madhuri Vishwakarma 5 years, 9 months ago
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Somanath Nayak 5 years, 9 months ago
Posted by Divyanshu Harshwal 5 years, 9 months ago
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Posted by Don'T Know 5 years, 9 months ago
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Posted by Mohit Chouhan 5 years, 9 months ago
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Posted by Tanishka Sharma 5 years, 9 months ago
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Anjali Barad 5 years, 9 months ago
Parvej Patel 5 years, 9 months ago
Posted by Kanav Singh 5 years, 9 months ago
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Zainab Ali 5 years, 9 months ago
Yogita Ingle 5 years, 9 months ago
Mole: Mole is the measurement in chemistry. It is used to express the amount of a chemical substance.
One mole is defined as the amount of substance of a system which contains as many entities like, atoms, molecules and ions as there are atoms in 12 grams of carbon - 12".
Posted by Ashok Khedkar 5 years, 9 months ago
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Ravi Kumar 5 years, 9 months ago
Tanishka Sharma 5 years, 9 months ago
Kanav Singh 5 years, 9 months ago
Posted by Pranav Tewatia 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
Molecular mass of the molecule: The sum of the atomic masses of all the atoms in a molecule of a substance is called the molecular mass of the molecule.
Molecular mass - calculation: Generally we use relative atomic masses of atoms for calculating the molecular mass of 1 mole of any molecular or ionic substances.
Example: Molecular mass of H2SO4
Atomic mass of Hydrogen = 1
Atomic mass of sulphur = 32
Atomic mass of oxygen = 16
Molecular mass of H2SO4 = 2(Atomic mass of Hydrogen) + 1 (Atomic mass of sulphur) + 4 (Atomic mass of oxygen)
= 2×1 + 32 + 4× 16 = 98 u.
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