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A)TEMPERATURE...............

sodium EXPLANATION:sodium metal burns in air to FORM sodium oxide which dissolves in water to form sodium hydroxide which is a strong base and an alkali and makes the SOLUTION alkaline. please mark it the BRAINLIEST answer. hope you LIKED the answer.

,Empirical formula = CH.Empirical MASS = 12 + 1 = 13.We know, Molar mass = K × empirical mass=> 78 = k × 13=> k = 6.Hence, the compound is 6(CH) = C6H6.Hence, the given compound has molecular formula C6H6 which is famous by the name Benzene.

weight/molecular mass3.6/40=0.09

ioxide is evolve when hcl reacts with sodium hydrogen CARBONATE. On passing the CARBON dioxide gas EVOLVED through lime water, then white PRECIPITATE calcium carbonate will form. The white precipitate indicates the presence of carbondioxide gas. . Hope it helps uh!!! Keep calm and study hard THANKS for asking

This REACTION is not possible. This is so because IRON (Fe) is more REACTIVE than SILVER(AG) . Hence, Silver cannot displace iron from its compound.

the CORRECT ANSWER is c. copper REACTS to give hydrogen

्लाज्मा कहते है। .

n :Given :-▪ Initial pressure of hydrogen = 95000 N/m▪ Initial temperature of hydrogen = 27°C = 300K▪ Final temperature of hydrogen = 57°C = 330KTo Find :-▪ Final pressure of hydrogen.CONCEPT :-This question is completely based on concept of 'Gay Lussac's law'.As PER Gay Lussac's law, At CONSTANT volume, pressure of a fixed amount of a GAS varies DIRECTLY with the temperature.Mathematically,Calculation :-

option C is the CORRECT ANSWER Li and F follow me,, i am NEW here...

clothes are very IMPORTANT clothes HELP US to cover our body

e correct ANSWER is (c)/side of a square.The correct graph is the figure attached.How to DRAW the graph :- we know , for a < 0 , |a| = - aFor X, y > 0.we draw :- x + y = 4.For, x < 0 , y > 0 We draw :- - x + y. = 4.For , x < 0 , y < 0we draw :- - x - y = 4.For , x >0 , y < 0.we draw :- x - y = 4.The four lines intersect at ( 4,0) , (0,4) , (-4, 0) , ( 0 , -4) and the RESULTANT figure is a square.

he correct order of force of ATTRACTION is C < A < B < D.The reason is that GREATER the force of attraction, more is the melting point as more heat is to be SUPPLIED to break the INTERATOMIC force.

Sodium chloride is the chemical name for salt. Sodium is an electrolyte that regulates the amount of water in your body. Sodium ALSO plays a part in NERVE impulses and muscle CONTRACTIONS. Sodium chloride is used to treat or prevent sodium loss caused by dehydration, excessive SWEATING, or other causes

R-Cl or R-BrExplanation:It is MENTIONED INT he PAT of ALKYL HALIDE

7H2O). On HEATING, ferrous sulphate crystals LOSE water and anhydrous ferrous sulphate (FeSO4) is formed. So their colour changes from light green to white. On further heating, anhydrous ferrous sulphate DECOMPOSES to form ferric oxide (Fe2O3), sulphur DIOXIDE (SO2) and sulphur trioxide (SO3).please like it if you found it HELPFUL to you

tion:decomposition REACTION are opposite to combination reaction because in combination reaction two or more reactants join to FORM a single product as in the form of X+Y= Zwhereas in decomposition reaction a single reactant breaks to form MULTIPLE PRODUCTS with the help of heat light or electricity as in the form of Z=X+Y(please write the reaction for the EQUATION to be answered)

When a magnesium ribbon burns with a dazzling flame in air , it changes into a SUBSTANCE CALLED magnesium oxide. Thus the following reaction TAKE place;Mg +O ---- MgObalanced: 2Mg +O2---2MgOHope this will help you....

f electrical RESISTANCE at SUPER CONDUCTIVITY STATE is zero

table salt- saltsoap- basetoothpaste- basebaking SODA- basewater- neutralcurd- acidmilk- basealum- metaliron- metal sulphur- nonmetalwashing POWDER- BASE

7.5 gExplanation:=0.15*5/0.10= 7.5g

tion:65+32+16×365+32+48145 is Your ANSWERPLEASE MARK IT AS BRAINLIEST

ion is the option which is ODD ONE in the GIVEN series

your IMAGE is not CLEAR

tion:BURNING wood.Souring milk.Mixing acid and base.Digesting food.Cooking an egg.Heating sugar to FORM caramel.Baking a cake.Rusting of iron. HOPE it will HELP you thanks mark me as brilliant

tion:The elemenents of the periodic table sorted by atomic massAtomic Mass NAME chemical element number32.065 Sulfur 1635.453 CHLORINE 1739.0983 Potassium 1939.948 ARGON 18

The COMBINATION of elements to give COMPOUNDS. There are THREE laws of CHEMICAL combination. ... (2) The law of MULTIPLE proportions states that when two elements A and B combine to form more than one compound, then the masses of B that combine with a fixed mass of A are in simple ratio to one another.I HOPE THIS MAY HELP YOU..MARK AS BRAINLIST..✌✌#gundi..

irus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus.Most people infected with the COVID-19 virus will experience MILD to moderate respiratory illness and recover without requiring special treatment. Older people, and those with underlying medical problems like cardiovascular disease, diabetes, chronic respiratory disease, and cancer are more likely to develop serious illness.The BEST way to prevent and SLOW down transmission is be well informed about the COVID-19 virus, the disease it causes and how it spreads. Protect yourself and others from infection by washing your hands or using an alcohol based rub frequently and not touching your face. The COVID-19 virus spreads primarily through droplets of saliva or discharge from the nose when an infected person coughs or sneezes, so it’s important that you ALSO practice respiratory etiquette (for EXAMPLE, by coughing into a flexed elbow).At this time, there are no specific vaccines or treatments for COVID-19. However, there are many ongoing clinical trials evaluating potential treatments. WHO will continue to provide updated information as soon as clinical findings become available.Stay informed:Protect yourself: advice for the public Myth bustersQuestions and answersSituation reportsAll information on the COVID-19 outbreak

First of all, BRO, that's boiling of water and not burning (lol) .Boiling of water is a physical change because in a physical change only the physical properties LIKE the temperature or STATE of the matter changes. In this case, the state of the matter, i.e. water changes to gas / vapour. There is no change in the chemical properties of water. It still remains H2O. We can get back the water by COOLING the vapour. So physical changes are reversible.Boiling of egg is a chemical change because it is irreversible.

The mole is DEFINED as the amount of substance that contains the number of carbon ATOMS in EXACTLY 12 G of carbon-12, Avogadro's number (6.022 × 1023) of atoms of carbon-12.Please mark as brainlist answer

2Al + 3H2O → 3H2 + Al2O3Explanation:aluminium REACTS with WATER to produce hydrogen gas according to the equationI HOPE THIS MAY HELP YOU..MARK AS BRAINLIST..✌✌#GUNDI..

the PH of the SOLUTION which turns blue litmus red will be 4 as the substance will be acidic in NATURE

These interactions are called METALLIC BONDS. Metallic bonding accounts for many physical properties of metals, such as strength, malleability, ductility, THERMAL and electrical CONDUCTIVITY, opacity, and luster. ... Metals in GENERAL have high electrical conductivity, high thermal conductivity, and high density.

n :▪ General electronic configuration = ns▪ The elements of group 1 : Lithium, sodium, potassium, rubidium, caesium and francium besides hydrogen.▪ These elements are called alkali metals because they form hydroxides on reaction with water which are strongly alkaline in nature.Elements in which the last electron enters the s-orbital are called s-block elememts.▶ Physical properties :▪ Alkali metals are soft with low MELTING and boiling points due to weak metallic bonding.▪ Alkali metals have low DENSITY which INCREASES down the group from Li to Cs.▪ On exposure to moist air, all alkali metals except lithium get tarnished quickly so they are ALWAYS kept in kerosene to protect them from air.▪ All alkali metals are paramagnetic but their salts are diamagnetic in nature.

110Explanach4+2o2=co2+2h2o16 g CH4 GIVES 44g co2therefore check for 40G

tion:These interactions are called metallic bonds. Metallic bonding accounts for many physical PROPERTIES of METALS, such as strength, malleability, ductility, thermal and electrical CONDUCTIVITY, opacity, and luster. ... Metals in GENERAL have high electrical conductivity, high thermal conductivity, and high density.hope this will help u ....❤

S block ELEMENTS which lies on LEFT side of the periodic table.All S- block elements are metals and have have valancy +1 and +2 eg- Na, MG

✨✨➽ It is used as rocket fuel because of its high calorific value... ➽ Oxy-hydrogen blow torch is used for cutting and WELDING purposes uses DIHYDROGEN and PURE OXYGEN.... ➽ As a REACTANT in the production of ammonia by the Haber process ➽ In welding metals....... ➽ As rocket fuel

An EXAMPLE of a solid HOMOGENEOUS mixture is bronze, which is a mixture of COPPER and tinExplanation:hope this helps