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The vacuole is the membrane bound CELL ORGANELLE and has the main FUNCTION of osmoregulation. It ALSO stores fluid and solid and hence, maintains rigidity ...Top

- IONIC EQUILIBRIUMCONCEPT :- Kw is called ionic PRODUCT of water. Kw = [H+] [OH-]. And, PH = -log[H+]SOLUTIONS Given, Kw = 6.4 × 10^-13[H+]² = 6.4 × 10^-13[H+] = 8 × 10-7Thus, pH = - log[8 × 10^-7]=> pH = 7 - log8=> pH = 7 - 2log2=>pH = 7 - 0.6=> pH = 6.4 ANS.

what?..................

2:2......1.................

A FLUID is anything that flows. So NATURALLY it includes both LIQUIDS and gases. A liquid is defined as a substance that occupies the shape of the container in which it is placed THOUGH keeping its volume.please mark it as BRAINLIST answer ⭐⭐⭐⭐

tion:Water flows from higher LEVEL to lower level because it has ACCELERATED in a DIRECTION which reduces its total potential of energy as quickly as possible. Water will FLOW from the higher energy from the head to lower energy head.

nitial Volume, V1 = 1.35 LNew Volume, V2 = 755 mL = 0.755 LInitial pressure, P1 = 515 mm HgTo Find:New pressure of the oxygen GAS.Calculation:- Applying BOYLE's LAW to the given condition, we get:P1 × V1 = P2 × V2⇒ P2 = P1 × V1/V2⇒ P2 = 515 × 1.35/0.755⇒ P2 = 920.86 mm Hg ≈ 921 mm Hg- So, the new pressure of the oxygen gas is 920.86 mm Hg.- HENCE, the correct answer is option (C) 921 mm Hg.

Wool is also used as an oil absorbent in oil SPILLS. After slaughter, SHEEP skins are turned into leather used in car upholstery, clothing and SHOES. The bones, hooves and horns of sheep are also used to make products such as GELATIN, tape, brushes and pet food ingredients

it is DI ISO HEXANE! not SURE ! ✌️

In ethene molecule, the carbon atoms are sp2 hybridized. One unpaired ELECTRON in the P ORBITAL remains unchanged. In ethylene, each carbon combines with THREE other atoms rather than FOUR. There is a formation of a sigma bond and a pi bond between two carbon atoms......

The best examples WOULD be sulfur dioxide, sulfur trioxide, nitrogen dioxide and carbon dioxide. All these dissolve in water to FORM, RESPECTIVELY, sulfurous acid, sulfuric acid, nitric acid and carbonic acid. The last one is quite safe to consume.Sodium oxide, which reacts with water to produce sodium hydroxide. Magnesium oxide.Neutral oxides are the oxides which show neither basic nor acidic properties when they react with water. Examples are carbon monoxide (CO) and nitrous oxide (N2O) which are only slightly soluble in water, and nitric oxide (NO).amphoteric oxides. Answer: Oxides of METALS which have both acidic as well as basic behaviour are known as amphoteric oxides. Such metallic oxides react with acids as well as base to produce SALT and water. Examples of Amphoteric oxides are aluminium oxide and zinc oxide.

lfurous, sulfuric, and nitric acids in polluted air and rain react with the calcite in marble and limestone, the calcite dissolves. In exposed areas of buildings and statues, we see roughened surfaces, removal of material, and loss of carved details. Stone surface material may be lost all over or only in spots that are more reactive.You might expect that sheltered areas of stone buildings and monuments WOULD not be affected by acid precipitation. However, sheltered areas on limestone and marble buildings and monuments show blackened CRUSTS that have peeled off in some places, revealing CRUMBLING stone beneath. This black crust is primarily composed of gypsum, a MINERAL that forms from the reaction between calcite, water, and sulfuric acid. Gypsum is soluble in water; although it can form anywhere on carbonate stone surfaces that are exposed to sulfur dioxide gas (SO2), it is usually washed away. It remains only on protected surfaces that are not directly washed by the rain.HOPE THIS WILL HELP YOU PLEASE MARK AS BRAINLIEST

Hence, we have 50/100= 0.5mol of CaCO3. From the formula, we can see that in 1 mol of CaCO3, 3 mol of OXYGEN atoms are present. Hence, in 0.5 mol, we have 1.5 mol of oxygen atoms. 1 mol=6.022*10^23 particle, which, by MATH, GIVES us 9.011*10^23 atoms of oxygen in 50g of CaCO3

Oxidation number, also called Oxidation STATE, the total number of ELECTRONS that an atom either gains or LOSES in order to form a chemical BOND with another atom.

ethylene (SYSTEMATICALLY named methylidene and dihydridocarbon; also CALLED CARBENE) is an organic compound with the chemical FORMULA CH2 (also written [CH2]). It is a colourless GAS that fluoresces in the mid-infrared range, and only persists in dilution, or as an adduct.

There are 2 SIGMA and 2 pi bonds.Explanation:Hence the ratio is 1HOPE IT HELPS!!!!!PLEASE MAKE IT BRAINLIEST ANSWER!!!!

s:The BREAKDOWN of HYDROGEN PEROXIDE to WATER and OXYGEN The breakdown of water to hydrogen and oxygen.

I HOPE it will HELP youExplanation: I hope it will help you

eristics of First ORDER Reaction: the rate of the reaction is not proportional to the concentration of the REACTANT the rate of the reaction is proportional to the SQUARE of the concentration of the reactant the rate of the reaction is proportional to the square ROOT of the concentration of the reactant the rate of the reaction is proportional to the natural logarithm of the concentration of the reactant the rate of the reaction is directly proportional to the concentration of the reactant

decomposition of silver chlorideExplanation:silver chloride decomposes to FORM silver and chlorine by the action of sunlight. it is an ENDOTHERMIC PROCESS, and HENCE, heat is involved

tion:At room temperature (anywhere from zero DEGREE centigrade to 100 degrees centigrade), water is found in a liquid state. This is because of the TINY, weak hydrogen bonds which, in their billions, hold water molecules together for small fractions of a SECOND. Water molecules are constantly on the MOVE.

RE, WHAT IS YOUR QUESTION, NOT ABLE TO UNDERSTAND IT.

Element X of group 13 Element Y of group 16 VALENCY of Y = 18 – 16 = 2 Valency of X = 3 Formula of COMPOUND formed between X and Y by cris cross method. Read more on Sarthaks.com - HTTPS://www.sarthaks.com/533127/using-periodic-predict-formula-compound-formed-between-element-group-another-element-group

tion:HEY BUDDY!!!!!!!THE DYE CAN BE SEPARATED BY CHROMATOGRAPHY AS FOLLOWS:1)WE WILL FILL THE BOWL WITH HALF WATER

First we need to find the no. of moles....i.e.We KNOW 22.4 LITRES @ NTP GIVES 1 MOLE so 11.2 litres @ NTP will give 0.5 moles..........No. Of MOLECULES = No. Of moles × Avogadro constantNo. Of molecules = 0.5 × 6.022×10^23= 3.011×10^23Read more on Brainly.in - brainly.in/question/7690641#readmore

lowing are the general properties of plastics.Strength. The plastics are SUFFICIENTLY STRONG and can be used for load bearing structural members. ...Weather RESISTANCE. ... Fire Resistance. ... Durability. ...DIMENSIONAL Stability. ...Chemical Resistance. ...THERMAL Resistance. ...Working Conditions.

N2Explanation:its simple.....look HYDROGEN only has s orbital so while bonding it will be s P overlap while in NITROGEN molecule this is not the case it has p orbital If POSSIBLE pl MARK as brainlyest

Molecules, NCERT Solutions1. In a REACTION 5.3 G of sodium CARBONATE reacted with 6 g of ethanoic acid. ... (V) CaCO 3 → Calcium carbonate. 3. What is ... Ans. 1 mole of carbon atoms 6.022 × 1023 atoms = 12 g

is an infection CAUSED by the BACTERIUM Bacillus anthracis.[2] It can occur in four forms: skin, lungs, intestinal, and injection.[9] Symptom onset occurs between one day to over two MONTHS after the infection is contracted.[1] The skin FORM presents with a small blister with surrounding SWELLING that often turns into a painless ulcer with a black center.

the total mass of the solution be 100 g and the mass of benzene be 30 g.∴ Mass of carbon tetrachloride = (100 - 30)g = 70 gMolar mass of benzene (C6H6) = (6 × 12 + 6 × 1) g MOL - 1= 78 g mol - 1∴ NUMBER of moles of C6H6 =30/78 mol= 0.3846 molMolar mass of carbon tetrachloride (CCl4) = 1 × 12 + 4 × 35.5= 154 g mol - 1∴ Number of moles of CCl4 = 70/154 mol= 0.4545 molThus, the MOLE fraction of C6H6 is GIVEN as:= 0.3846 / (0.3846 +0.4545)= 0.458

In its compounds, titanium exhibitsoxidation states of +2, +3, and +4, as in the oxygen compounds titanium monoxide, TiO, dititanium TRIOXIDE, Ti2O3, and titanium dioxide, TIO2, RESPECTIVELY. The +4 oxidation state is the most stable.

tion:hi my name is Anju and that you can answer by to me I like you do not possible without SEE that I am REALLY really proud of you JOIN me. I will help

no 2ND ANSWER will be WRONG

ases2)evaporates3)loose4)DECREASES5)increasedhope it HELPS MARK it as BRAINLIEST#RAMAN

rter's DISEASE, is when anthrax occurs on the skin. It is the most common form (>90% of anthrax cases). It is also the LEAST dangerous form (LOW MORTALITY with TREATMENT, 20% mortality without).

Combustion, or burning,[1] is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces OXIDIZED, often gaseous products, in a mixture termed as smoke. Combustion doesn't always result in fire, but when it does, a flame is a characteristic indicator of the reaction. While the activation energy must be overcome to initiate combustion (e.g., using a lit match to light a fire), the heat from a flame may provide enough energy to make the reaction self-sustaining. Combustion is often a complicated sequence of elementary radical reactions. Solid fuels, such as wood and coal, first undergo endothermic pyrolysis to produce gaseous fuels whose combustion then supplies the heat required to produce more of them. Combustion is often hot enough that incandescent light in the form of either glowing or a flame is produced. A simple example can be seen in the combustion of hydrogen and oxygen into water vapor, a reaction commonly used to fuel rocket engines. This reaction releases 242 kJ/mol of heat and reduces the enthalpy accordingly (at constant temperature and pressure):2H2(g) + O2(g) → 2H2O(g)Combustion of an organic fuel in air is always exothermic because the double bond in O2 is much weaker than other double bonds or pairs of single bonds, and therefore the formation of the stronger bonds in the combustion products CO2 and H2O results in the release of energy.[2] The bond energies in the fuel PLAY only a minor role, since they are similar to those in the combustion products; e.g., the sum of the bond energies of CH4 is nearly the same as that of CO2. The heat of combustion is approximately -418 kJ per mole of O2 used up in the combustion reaction, and can be estimated from the elemental composition of the fuel.[2]Uncatalyzed combustion in air requires relatively high temperatures. Complete combustion is stoichiometric concerning the fuel, where there is no remaining fuel, and ideally, no residual oxidant. Thermodynamically, the chemical equilibrium of combustion in air is overwhelmingly on the side of the products. However, complete combustion is almost impossible to achieve, since the chemical equilibrium is not necessarily REACHED, or may contain unburnt products such as carbon monoxide, hydrogen and even carbon (soot or ASH). Thus, the produced smoke is usually toxic and contains unburned or partially oxidized products. Any combustion at high temperatures in atmospheric air, which is 78 percent nitrogen, will also create small amounts of several nitrogen oxides, commonly referred to as NOx, since the combustion of nitrogen is thermodynamically favored at high, but not low temperatures. Since burning is rarely clean, flue gas cleaning or catalytic converters may be required by law.Fires occur naturally, ignited by lightning strikes or by volcanic products. Combustion (fire) was the first controlled chemical reaction discovered by humans, in the form of campfires and bonfires, and continues to be the main method to produce energy for humanity. Usually, the fuel is carbon, hydrocarbons, or more complicated mixtures such as wood that contains partially oxidized hydrocarbons. The thermal energy produced from combustion of either fossil fuels such as coal or oil, or from renewable fuels such as firewood, is harvested for diverse uses such as cooking, production of electricity or industrial or domestic heating. Combustion is also currently the only reaction used to power rockets. Combustion is also used to destroy (incinerate) waste, both nonhazardous and hazardous.Oxidants for combustion have high oxidation potential and include atmospheric or pure oxygen, chlorine, fluorine, chlorine trifluoride, nitrous oxide and nitric acid. For instance, hydrogen BURNS in chlorine to form hydrogen chloride with the liberation of heat and light characteristic of combustion. Although usually not catalyzed, combustion can be catalyzed by platinum or vanadium, as in the contact process.