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is because a flame is only PRODUCED when gaseous substances burn.So,fuels may or may not burn with a flame.Eg:When wood is ignited,the volatile substances PRESENT in it VAPORISE and burn with a flame in the beginning.Whereas,LPG burns with a flame

utral FECL3 TEST.(2). LITMUS test.

somer is more ACIDIC

mic NUMBER is the number of PROTONS in an ATOM of an element. ... By definition, atoms have no overall electrical charge. That means that there must be a balance between the positively charged protons and the negatively charged electrons. Atoms must have equal numbers of protons and electrons.When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral. HOPE THIS WILL HELP U

have MUCH lower ENTROPIES and solids lower still. Solutions have a greater entropy than pure liquids as the particles in a SOLUTION are more separated and solvent molecules separate the solute particles. ... A process where a SOLID changes to a liquidor gas or a liquid changes to a gas.

tioxidants :- ANTIOXIDANT is a substance which prevents OXIDATION. They are actually REDUCING agents . Oxidizing agent :- The substance which gives OXYGEN for oxidation is called oxidizing agents .Hope it HELPS...!! and the knowledge given is sufficient...

or pollution of air pollution is:increase use of VARIOUS gases like sulphur dioxide and nitrogen oxide which leads to air pollutionincrease use of carbon dioxide GAS in the atmospherehope it's helpful to you DEAR..:) please mark as BRAINLIEST...

llest unbreakable unit of a COMPOUND is CALLED a molecule . ... But when they combine into the familiar compound known as water, each molecule of which contains two hydrogen atoms and one oxygen atom (H 2 O), the resulting substance is a liquid at room temperature and NORMAL atmospheric PRESSURE.

it HARDENS up if KEPT out

d LENGTH of LII is LONGER than LIF that is why

n with either nitrogen / OXYGEN / FLUORINE@SKB

gas evolved burns with a POP SOUND, this indicates that the gas is HYDROGEN.  When ethanol reacts with sodium, sodium ethoxide is formed and hydrogen gas is released. 2C2H5OH + 2Na ------> 2C2H5ONa + H2 So, carbon compound 'X' is ethanol and gas 'Y' is hydrogen gas. 2. Ethanol on heating with conc. shuphuric ACID GIVES ethene (CH2=CH2)  C2H5OH suphuric acid-------> CH2=CH2 + H2O Hope this will help u... :-)

control photochemical smog by CONTROLLING POLLUTION. By controlling pollution Not only photochemical smog will reduce all other THINGS will also be reduced because is the MAJOR PROBLEM are formed because of pollution only.

sed in oil well cements to prevent separation of SOLIDS from the high water-containing cement matrix. In some CASES, sodium metasilicate can act as an extender, allowing a higher RATIO of water to cement and thus reducing material costs. It is also IDEAL for fire-resistant settings such as refractories.hope it HELPED you :D

NT TYPES OF STEELSteel is an alloy made from iron and carbon. There are several distinct grades of steel that have unique chemical compositions based on the different amounts of carbon and added alloys.When determining the type of steel that you want to buy, it is important to know there are four different types of steel that are classified based on their chemical structure and PHYSICAL properties: carbon steels, alloy steels, stainless steels, and tool steels. We'll outline each of the following steel types below.Carbon SteelCarbon steel is dull and matte in appearance and is VULNERABLE to corrosion. Carbon steel can contain other alloys, such as manganese, silicon, and copper. There are three main types of carbon steel: low carbon steel, medium carbon steel, and high carbon steel. Low carbon steel is the most common and typically contains less than .30% of carbon. Medium carbon steel contains up to .60% of carbon as well as manganese and is much stronger than low carbon steel. High carbon steel contains up to 1.5% carbon steel and is the strongest of the categories and can often be hard to work with.Alloy SteelAlloy steels are a MIXTURE of several metals, including nickel, copper, and aluminum. Alloy steels tend to be cheaper and are used in mechanical work, car parts, pipelines, and motors. The strength and property of alloy steels depends on the concentration of elements they contain.Stainless SteelStainless steels are shiny, corrosion resistant, and used in many products, including home appliances, backsplashes and cooking utensils. It has a low carbon content Stainless steel contains the alloy chromium and can also include nickel or molybdenum. Stainless steel is strong and can withstand high temperatures. There are more than 100 grades of stainless steel, making it an extremely versatile material that is customizable depending on your purpose.Tool SteelTool steels are hard and heat and scrape-resistant. They are named tool steels because they are often used to make METAL TOOLS, such as stamping, cutting, and mold-making tools. They are also commonly used to make hammers. There are several different grades of steel that can be used for distinct applications. Hope it's help you ✌️ ✌️ PLZ MARK AS BRAINLIST

d–Lowry theory, ALSO called proton theory of acids and BASES, a theory, introduced independently in 1923 by the Danish CHEMIST Johannes Nicolaus Brønsted and the English chemist Thomas Martin Lowry, stating that any compound that can transfer a proton to any other compound is an acid, and the compound that accepts the proton is a base. A proton is a NUCLEAR particle with a unit positive electrical charge; it is represented by the symbol H+ because it constitutes the nucleus of a HYDROGEN atom.

soap is USED in hard WATER, a solid substance we call scum forms. This is because charged calcium and magnesium PARTICLES (CALLED ions ) present in the water react with soap to form an insoluble substance. Scum builds up on clothes, baths and sinks. Detergents do not form scum.

chloride is also called salt or table salt and is classified as an ionic compound and has a chemical formula of NACL.  A white crystalline solid consisting mainly of sodium chloride (NaCl) common salt binary compound.Sodium chloride does not act as either an acid or a base. A solution of it is neutral (pH = 7). Sodium chloride, FOUND abundantly in nature, OCCURS in seawater, other saline WATERS or brines, and in dry rock salt DEPOSITS. It can be obtained by mining and evaporating water

ss in which one or more substance ,the reactants COVERED to one more different substances , the products. substance are either chemical elements or COMPOUNDS . A chemical REACTION REARRANGE the constituent ATOMS of the reactants to create different substances as products .

ortionation reaction and law of chemical equivalences.D disproportionate Reaction .A redix reaction in which a same elements present in a particular COMPOUNDS in a definite oxidation STATES is oxidized as well as reduced simultaneously is a disproportionate reaction. EXAMPLE = Hydrogen peroxide converting into water and oxygen is a disproportionate reaction. I hope this ANSWERS help you

te The answer of ur QUESTION is QUESTION 4.6 G of ethyl alcohol MIXED with 6g of acetic acid.Find out the value of Kc if 2g of acetic acid remains unused in chemical reaction.As we know that the , Equilibrium constant is the ratio of the product.Given EQUATION is here C2H5OH + CH3COOH->> CH3COOC2H5 + H2OKC = frac of [H2O]×[CH3COOC2H5][CH3COOH]×[C2H5OH]KC=2/3×2/3=4/9KC =0.44hope you got it

xite is purified by the Bayer Process. First the ore is MIXED with a hot concentrated solution of sodium hydroxide. The NAOH will dissolve the oxides of aluminum and silicon but not other impurities such as iron oxides, which remains insoluble. ... (Sodium metal is not EASY to obtain either).Hope this helps..MARK brainliest❤

didn't KNOW ANSWER

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e compound Acetyl CHLORIDE, also known as , comes into CONTACT with the ANOTHER chemical compound Methylmagnesium iodide, that is , it results in the formation of Propanone or ACETONE, that is . The attachment GIVEN below provides with the formation of propanone or acetone after Acetyl chloride reacts with Methylmagnesium iodide.

answerhope it HELPS you

this the COLOUR of WATER BECOMES MILKY

ite,in addition to aluminium oxide impurities like iron oxide and sand are present.• On refining bauxite by Bayer's method to obtain pure aluminium oxide is obtained.# In this method, 45% concentrated caustic SODA solution is added to bauxite and then HEATED INA closed vessel at about 433k temperature and 5 to 6 bar pressure, for 6 to 8 hours, so that bauxite is converted into soluble sodium aluminate.the soluble impurities collected at the BOTTOM are separated by filtration .#Soluble sodium aluminate is mainly there in the FILTRATE. excess of water is added to it and on constant STIRRING,it's hydrolysis takes place and whites gelatenious precipitation of aluminium hydroxide are obtained.about 99.5% pure alumina is obtained by Bayer's method.