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Shreya Wakhare 5 years, 6 months ago
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Posted by Lucifer??Morningstar?? . 5 years, 7 months ago
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Posted by Mayank Baghel 5 years, 7 months ago
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Posted by Mayank Baghel 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
The chemical equation needs to be balanced so that it follows the law of conservation of mass. A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side. Balancing chemical equations is a process of trial and error.
Posted by Wishnu Dev Kumar 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
1 Chlorophyll must be present in leaf cells for photosynthesis to occur.
2 Leaves must be exposed to light for photosynthesis to occur. 3 Plants need carbon dioxide to be able to photosynthesise.
Abhinav Pandey 5 years, 7 months ago
Posted by Abhinav Pandey 5 years, 7 months ago
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Minu Shiwani Chandel 5 years, 7 months ago
Posted by Arjun Kalbi 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
When the milk is left at room temperature, the oxidation reaction occurs and the growth of microorganisms occur due to which it gets sour.
Posted by Mayank Baghel 5 years, 6 months ago
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Posted by Archita Soni 5 years, 7 months ago
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Kushagra Rai 5 years, 7 months ago
Abhista Maddishetty 5 years, 7 months ago
Shushant Patel 5 years, 7 months ago
Dhivyan Dhivyan 5 years, 7 months ago
Kanak Rastogi 5 years, 7 months ago
Posted by Mayank Baghel 5 years, 7 months ago
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Posted by Mayank Baghel 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
A voltmeter is always coonected in parallel across a device to measure the voltage across it. ... Hence, it has high resistance so that current flowing in the circuit would not disturbed and it can measure the correct value.
Posted by Mayank Baghel 5 years, 7 months ago
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Posted by Mayank Baghel 5 years, 7 months ago
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Posted by Mayank Baghel 5 years, 7 months ago
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Posted by Mayank Baghel 5 years, 7 months ago
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Meghna Thapar 5 years, 5 months ago
Copper has free electrons that are loosely held by the nuclei of the atoms. These free electrons result in conduction of electricity. The electrons present in rubber are strongly held by the nuclei of its atoms. So, rubber does not have free electrons to conduct electricity.
Posted by Anushka ???? 5 years, 7 months ago
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Myself Viv 5 years, 7 months ago
Yogita Ingle 5 years, 7 months ago
In chemistry, a catalyst is any substance that increases a reaction rate without being consumed on its own. In other words it’s a substance that increases the rate of a chemical reaction without being changed in identity.
Posted by Zaara Sheikh 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
| S.No | Property | Solid | Liquid | Gases |
| 1. | Shape | They have a definite shape | They do not have a definite shape | They do not have a definite shape |
| 2. | Volume | They have a definite volume | They do not have a definite volume | They do not have a definite volume |
| 3. | Density | They have high-density | Liquids have less density than solids | Gases have the least density |
| 4. | The kinetic energy of particles | Least | More than solids | Maximum |
| 5. | Compressibility | Negligible | Low | High |
Posted by Yangkela Sherpa 5 years, 7 months ago
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Anushka ???? 5 years, 7 months ago
Posted by Manju Dubey 5 years, 7 months ago
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Square Blocks 5 years, 7 months ago
Posted by Mayank Baghel 5 years, 7 months ago
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Posted by Sneha Elure 5 years, 7 months ago
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Yogita Ingle 5 years, 7 months ago
Electromagnetic Induction was discovered by Michael Faraday in 1831 and James Clerk Maxwell mathematically described it as Faraday’s law of induction.
Electromagnetic Induction is a current produced because of voltage production (electromotive force) due to a changing magnetic field.
Meghna Thapar 5 years, 7 months ago
Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Michael Faraday is generally credited with the discovery of induction in 1831, and James Clerk Maxwell mathematically described it as Faraday's law of induction. Electromagnetic Induction is the governing principle that is used to explain how electric generators (also called alternators), microphones, electric guitars, and transformers operate.
The current contained in the conductor is said to alternate because its current flows back and forth, as a result of the conductor being first raised and then lowered in the magnetic field. In short, currents help to create magnetic fields.
A moving or changing magnetic field does produce a current in a current loop or a voltage across the ends of a current loop. This is called electromagnetic induction and the current or voltage is called an induced current or an induced voltage.
Posted by Mayank Baghel 5 years, 7 months ago
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Posted by Aayush Jha 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
Adenosine triphosphate (ATP) is considered by biologists to be the energy currency of life. It is the high-energy molecule that stores the energy we need to do just about everything we do. The Adenosine triphosphate (ATP) molecule is the nucleotide known in biochemistry as the "molecular currency" of intracellular energy transfer; that is, ATP is able to store and transport chemical energy within cells. ATP also plays an important role in the synthesis of nucleic acids.
Ajitesh Rai 5 years, 7 months ago
Posted by Mayank Baghel 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
When dilute Hydrochloric acid is added to iron filings, iron chloride & hydrogen gas is produced. The iron displaces hydrogen from hydrochloric acid to form iron (II) chloride & hydrogen gas. Iron reacts with hydrochloric acid to produce iron(II) chloride and hydrogen gas: Fe(s) + 2 HCl(aq) → FeCl 2 (aq) + H 2 (g) The H 2 gas from the reaction of 2.2 g of iron with excess acid is collected in a 10.0-L flask at 25 °C.
Meghna Thapar 5 years, 7 months ago
When dilute Hydrochloric acid is added to iron filings, iron chloride & hydrogen gas is produced. The iron displaces hydrogen from hydrochloric acid to form iron (II) chloride & hydrogen gas. Iron reacts with hydrochloric acid to produce iron(II) chloride and hydrogen gas:
Fe(s) + 2 HCl(aq) → FeCl 2 (aq) + H 2 (g) The H 2 gas from the reaction of 2.2 g of iron with excess acid is collected in a 10.0-L flask at 25 °C.
Posted by Mayank Baghel 5 years, 7 months ago
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Minu Shiwani Chandel 5 years, 7 months ago
Meghna Thapar 5 years, 7 months ago
A balanced chemical equation has an equal number of atoms of different elements in the reactants and products. It has equal masses of various elements in the reactants and products.
Example: Zn + H2SO4 - ZnSO4 + H2
- Balancing the Chemical Equations:
- In a balanced chemical equation, the total number of atoms of each element of the reactants on the left hand side of the equation is equal to the number of atoms of the products formed on the right hand side of the equation.
- The total mass of the reactants is equal to the total mass of the products or the number of atoms of each element before the reaction and after the reaction is equal.
Posted by Mayank Baghel 5 years, 7 months ago
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Meghna Thapar 5 years, 7 months ago
Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions.
Example: AgNO3 (aq) + NaCl (aq) - AgCl (s)+ NaNO3 (aq)
When silver nitrate solution is added to sodium chloride solution, then a white precipitate of silver chloride is formed alongwith sodium nitrate solution. In this reaction, two compounds, silver nitrate and sodium chloride, react to form two new compounds,, silver chloride and sodium nitrate.
Posted by Mayank Baghel 5 years, 7 months ago
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Posted by Alisha Singh Sumra 5 years, 7 months ago
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Mayank Baghel 5 years, 7 months ago
Yogita Ingle 5 years, 7 months ago
Sucrose is the sugar which is known as table sugar. Sucrose is found in all photosynthetic plants. It is commercially obtained from sugarcane and sugar beets via an industrial process. The molecular formula of sucrose is C12H22O11. Sucrose comprises α form of glucose and β form of fructose. It is formed by condensation the reducing carbon atoms of glucose (C1 – α) and fructose (C2 -β). The glycosidic in a sucrose molecule linkage is 1α-2β linkage. On hydrolysis by acids or invertase enzyme, sucrose gives one molecule each of D-Glucose and D-Fructose. Sucrose is dextrorotatory, with a specific rotation of +66.5%, D-glucose has a positive specific rotation of, [α]D = +53°, while D-fructose has negative rotation of [α]D = -92°. The hydrolyzed mixer has an equal concentration of glucose and fructose with negative rotation. Hence the mixture is called invert sugar.
- Sucrose is combined at the hemiacetal oxygen and does not have a free hemiacetal hydroxide.
- Sucrose is a non-reducing sugar.
- Does not show mutarotation (α to β conversion).
- Sucrose also does not form osazones for the same reason.
Posted by Shreya Varshney 5 years, 7 months ago
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Meghna Thapar 5 years, 5 months ago
Magnesium sulfate as a medication is used to treat and prevent low blood magnesium and seizures in women with eclampsia. It is also used in the treatment of torsades de pointes, severe asthma exacerbations, constipation, and barium poisoning. It is given by injection into a vein or muscle as well as by mouth. Magnesium sulfate injection is a naturally occurring mineral used to control low blood levels of magnesium. Magnesium sulfate injection is also used for pediatric acute nephritis and to prevent seizures in severe pre-eclampsia, eclampsia, or toxemia of pregnancy.
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Rajnandini Son 5 years, 7 months ago
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