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here 50g NaOH is requiredso the student C had MADE the desired SOLUTION of 50% ( m/v)EXPLANATION:hope it is helpful to you

1.iron, sodium.2.oxygen, CARBON dioxide.3.germanium, boron4.hilium,neon.5.sugar in SAND , CEMENT in water6.air, GLUCOSE.

Explanation:During contraction two object pull each other by a force for which it is CALLED contractionDuring EXPANSION two object fail to KEEP there pull force DUE to some SORT of force given to that.

tion:Unsaturated hydrocarbons are hydrocarbons that have double or triple covalent bonds between ADJACENT carbon atoms. ... The configuration of an unsaturated carbons include STRAIGHT chain, such as ALKENES and alkynes, as well as branched CHAINS and aromatic compounds.

A ripple EFFECT is a SITUATION in which, like ripples expanding across the water when an object is DROPPED into it, an effect from an initial state can be FOLLOWED outwards incrementally.Explanation:

Saturated hydrocarbons are molecules with only SINGLE bonds. They consist of a carbon ATOM bonded to a MAXIMUM NUMBER of hydrogen ATOMS. Alkanes are saturated hydrocarbons.Explanation:

Hope it will help you dude....... EXPLANATION:GOOD AFTERNOON.

vesonority is the property that a sound. COMES like a bell.... PLZ MARK me as BRAINLIEST ......thankyou.

tion:The temperature of dry ice is generally -78 ° C, and the temperature of ice is 0 ° C. Dry ice is SOLID CARBON dioxide CO2, which will sublimate into carbon dioxide gas when EXPOSED to heat. ... Ice is a solid-state of water, which melts into liquid water when heated.

Water can be decomposed using electrolysis. Materials required are: Pencils, electrolytic CELL, battery, distilled water and cardboard.Procedure: 1. Fill the beaker or glass with warm water.                    2. PUT 2 sharpen pencils as electrodes.                    3. Connect each pencil to the battery.                   4. Wrap the wire around the graphite of each pencil and connect the WIRES to the battery. PRODUCTS formed are : Hydrogen gas and OXYGEN gas.Pls follow me and mark as brainliest.

Figuring out what to WEAR is not so easy. N95 and MEDICAL masks, which offer the most protection and are heavily in DEMAND, should be reserved for health care workers who are REGULARLY exposed to INFECTED patients

ation of people wearing cloth face masks . Your cloth face COVERING may PROTECT them. Their cloth face covering may protect you.Explanation:give me a 20 THANKS I will FOLLOW you

1. Thermoplastics are the plastics which change their shape when heated.they have linear polymersthermosetting plastics do not change their shape if they are heated.they have cross linked polymers.2. PVC is a thermoplastic and is used for making toys, slippers etc. Bakelite is a THERMOSETTING plastic and is used for making electrical switches, handles of various utensils.3. Rayon smells LIKE burning paper as it is made from wood pulp and paper is ALSO made from wood pulp4. i am sorry i do not know but i think it is because after iron age it is plastic age and so plastic REPLACED iron in many places and maybe that is why plastic does not like iron.nylon--------- fibrePVC-----------thermoplasticbakelite------thermosetting plastic

before or afterExplanation:

Evaporation involves two basic processes: a HOT source material evaporates and condenses on the substrate. It resembles the familiar process by which liquid water appears on the lid of a boiling POT. However, the gaseous environment and heat source (see "EQUIPMENT" below) are different.Explanation:Evaporation is one of the two forms of vaporization. It is the process whereby atoms or molecules in a liquid state (or solid state if the substance sublimes) GAIN sufficient ENERGY to enter the gaseous state. It is the opposite process of condensation.

because it HELPS us to save water THATS why PEOPLE USED buckets and mugs a very long time hope it helpsmark my answer as BRAINLIEST

there are 3 atoms2 of HYDROGEN and one of sulphurExplanation:If it's HELPFUL then MARK as brainliest please

plzz mark as brainlist plzz EXPLANATION:LPG- Liquid PETROLEUM gasCNG- COMPRESSED natural GAS

frozen form of CARBON dioxide is KNOWN as DRY ice.hope this is HELPFUL please mark me as BRAINLIEST.

The substance is an element i.e. CarbonExplanation:1. Any CARBON compound on HEATING in abundant oxygen PRODUCES some carbon dioxide *with some other substances*.EG: a) hydrocarbon on heating give carbon dioxide and waterb) metal carbonates decompose to give CO2 and metal oxide2. The substance that produces only carbon dioxide is carbonCarbon + oxygen -> carbon dioxideBecause the question satisfies the reaction stated above, the substance is element carbonI hope it will help you❤️❤️

cromotography is the technique used to separate solute that dissolve in the same solventapplications to separate1colour in a dye1colour in a dye2 pigment from NATURAL COLOUR 1colour in a dye2 pigment from natural colour 3 drugs from bloodprinciple this method of separation is based on the fact that though two substances are dissolved in the same solvent but their solublities can be different the component which is more Soluble in, rises faster and gets seprated from the mixture

118 elementsAlthough not FOUND in sequence, a total of 118 elements have been discovered so FAR incliding elements 1–112, 114, 116 and recently synthesized elements 113, 115, 117 and 118, completing the 7th row of the periodic table.Explanation:please mark as BRANLIST

perature REMAINS constant during boiling of water even though heat is supplied constantly because all the heat energy provided is used up in changing the STATE of water from liquid to gaseous water vapour.So supplied heat energy is used to INCREASE kinetic energy of molecules.Mark me as BRAINLIEST

Because they ABSORB SWEAT and REMOVE HEAT from our BODY

answerStages of GrowthThe developmental phases for cotton can be divided into five main growth stages: (1) germination and emergence (2) seedling establishment (3) leaf area and canopy development (4) flowering and boll development and (5) maturation The transitions between these stages are not always SHARP and clear. Each STAGE may also have different physiological processes operating within specific requirements. If producers are aware of these stage-dependent differences in cotton growth and requirements, then many problems in crop management can be avoided, which will result in higher YIELDS and profits. _____❤️ Thank u ❤️______

i don't knowExplanation:i don't KNOW

Celsius (°C) and KELVINS (K) have the same magnitude. The only DIFFERENCE between the scales is their starting points: 0 K is "absolute zero," while 0°C is the FREEZING point of water. One can convert degrees Celsius to kelvins by adding 273.15; thus, the BOILING point of water, 100°C, is 373.15 K.itzDopeGirl

Because COMPOUND are the SUBSTANCE of two mixtures.I TRIED to answer your question.I hope it HELPS you.Please MARK this as the brainliest!

I HOPE THIS WILL HELP YOU Explanation:ANIMAL charcoal is produced from BONES, horn, blood, ETC. Bone-black, or bone-charcoal, is obtained by the destructive distillation of bones in iron retorts, the distillate constituting bone- oil or Dippel's oil.

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There is a SINGLE electron in that shell. ... This is why sodium REACTS so vigorously with water: it's getting rid of that outermost electron and turning into sodium ions in the process: But sodium ions don't have that outermost electron, so they don't have any REASON to react with water.#GUNDI..✌✌

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the water on earth, only 1% of it is SUITABLE for human use. Water EVAPORATES from the ground, turns into CLOUDS, falls as rain, sleet or snow, and the whole process continues endlessly in a cycle. Plants can SWEAT, and the process is called transpiration – an essential part of the water cycle.itzDopeGirl

tion:B and D PLZ mark as BRAIN list PLZZZZZZZZZ!!!!

Examples of important inorganic sodium salts are sodium fluoride, sodium chloride, sodium BROMIDE, sodium IODIDE, sodium sulfate, sodium bicarbonate and sodium CARBONATE. Sodium amide (NaNH2) is the sodium salt of ammonia (NH3).Explanation:mark as brillenest