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1,2 di-methyl HEXANE is IUPAC namemark as BRAINIEST PLEASE

don't give fault statements and all EXPLANATION:you are saying 100 POINTS and the QUESTION is only of 5 points y

a) CaCl2(aq) + Na2CO3(aq) → CaCO3(s) + 2NaCl(aq)b) Na2CO3 (aq) + Zn(NO3)2 (aq) -->2 NaNO3(aq) + ZNCO3 (s)c) 2ZnSO4 + 2(NH4)2CO3 → ZN2(CO3)2 + 2(NH4)2SO4d) NaCl + Pb(NO3)2 → NaNO3 + PbCl2e) Pb(NO3)2 + Na2SO4 → PBSO4 + 2NaNO3

YesExplanation:Soluble in about 2225 PARTS WATER; more soluble in NITRIC acidMark me as BRAIN list

Bisulphate-Sodium Peroxide-Na2O2Aqueous Solution-(aq.)NUMBER of SUBSHELLS in each main shell is equal to the VALUE of=n-1 where n is equal to the main shell number

base ↑↑ ACIDS may be defined as the compounds that donate an ion of hydrogen (H+) to another compound (usually called a base). Conventionally, an acid USED to be known as the chemical compound that once dissolved in water, produces a solution that has a low activity of hydrogen ion than water in its purest form.A base on the other hand which is SOLUBLE in nature is TERMED as an alkali. Liquids that are volatile (acids) once mixed with certain substances would PRODUCE salts. The produced salts would form a base that are concrete and thus they were termed as bases. Acids usually are H+ donors while Bases are H+ acceptors.To give you a more clear understanding of the differences between acids and bases here is a comparison chart that you can refer.............

An indicator prepared from natural SUBSTANCES is known as natural indicator. Examples are LITMUS, Turmeric, CHINA ROSE petals, snowball plant, Red Cabbage and Grape Juice… . An indicator prepared from artificial substances is known as SYNTHETIC indicator Examples are Phenolphthalein and Methyl Orange.

Rutherford randomly placed the negative ELECTRONS outside the nucleus. ... Rutherford described the atom as consisting of a TINY positive MASS surrounded by a CLOUD of negative electrons. Bohr thought that electrons orbited the nucleus in quantised orbits. Bohr built upon Rutherford's model of the atom.I hope it helps youplz MARK me as BRAINLIEST

Each molecule of hydrogen has two ATOMS of hydrogen, the atomicity of hydrogen is two. SIMILARLY each molecule of oxygen CONTAINS two atoms of oxygen, the atomicity of oxygen is two. One molecule of WATER contains two atoms of hydrogen and one atom of oxygen, the atomicity of water is three... Pls follow me and have a nice day.. ❤️

compound is soluble in 5% HCl, it is most likely an amine. If the compound is insoluble in 5% HCl and 5% NaOH, ADD 1 drop of a liquid sample or about 25 mg of a solid sample to 0.5 mL of concentrated sulfuric acid (H2SO4) in a dry TEST tube.Explanation:give me a 20 THANKS I will follow you

a) physicalb) CHEMICALC) CHEMICAL d) PHYSICAL EXPLANATION:

Very few of bombarded α-particles on gold foil were deflected by SHARP ANGLES and therefore, it was concluded that the positive charge is concentrated in a very small volume of the atom called NUCLEUS. SINCE few were deflected, the size of the nucleus is very small as compared with atom size.Most of the particles passed through the foil undeflected and was concluded that most of the space in an atom is empty.Explanation:here's the answer please follow me

The NUMBER of ions PER unit volume carrying the current decreases on dilution, so conductivity ALWAYS decreases with DECREASE in concentration. However, molar conductivity increases with dilution due to increase in DEGREE of dissociation which increase the number of ions.

tion:5 ans)CENTRIFUGATION is the TECHNIQUE which involves the application of centrifugal force to separate particles from a SOLUTION according to their size, SHAPE, density, viscosity of the medium and rotor speed.plzz mark as brainliest

1s2 2s2 2p2x 2py2 2p0z Explanation:HOPE it is you MARK as BRANLIEST

ity is a PROPERTY referring to the ability for a given substance, the solute, to DISSOLVE in a solvent. _____________________________It is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium. The RESULTING SOLUTION is called a saturated solution.❤

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culate the PERCENTAGE composition of:1. Calcium phosphate 35.98%2. Potassium hydroxide1.256%3. Sodium bicarbonate 54.989%4. Aluminium sulphate 17.558888%5. Nitrous oxide 23.8887%(ATOMIC weights are: Ca 40, P=31,016, K = 39, H = 1, Na = 23,C12A27,5 32, N=14]

1. Na₂SO₄= 2(23.5)+32+4(16)= 47+32+64= 143 g.2. Ca(NO₃)₂= 40+2[14+3(16)]= 40+2[14+48]= 40+2[62]= 40+124= 164 g.3. H₂SO₄= 2+32+4(16)= 34+64= 98 g4. Al₂O₃= 2(27)+3(16)= 54+48= 106 g5. KAlO₂= 39+27+2(16)= 66+32= 98 gHope this helps.

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chlorineExplanation:

Explanation:From the equation, we can see that the ratio of number of moles:Al : HCl : AlCl3 : H2 (Assuming that HCl3 was a typo)is equal to:2 : 6 : 2 : 3 (As the numbers in FRONT of each substances show)Therefore, if 0.040 mol of ALUMINIUM REACTED COMPLETELY, than 0.040×32=0.060mol of hydrogen was formed.Thus, 0.060÷20=0.003mol/sPlz mark me as a brainliest answer

CaCO3(l)→CaO(s) + CO2(g)               B) 2NA(s) + 2H2O(l) → 2NaOH(l) + H2(g )c) AgNO3(l)+ NaCl(l)→AgCl(l) + NaNO3( l)d) 6CO2(g) + 6H2O(l) → C6H12O6(l)+ 6O2(g)Explanation:

We OBTAIN nitrogen from the impure liquid. In a laboratory, we obtain dinitrogen by reacting an aqueous solution of ammonium chloride with sodium nitrite. ... Another method in which we can remove the impurities is by PASSING the GASEOUS mixture through sulphuric ACID that has potassium dichromate in it.hope this helps you PLZ mark as brainliest and follow me✌10❤+follow =inbox

tion:ANSWERWeight of Na 2 CO 3 =agWeight of NaCl=bga+b=HOnly Na 2 CO 3 reacts In 15 ml, M eq of Na 2 CO 3 = M eq of HCl→50∗ 101 =5M eq of Na 2 CO 3 in 250ML = \frac {5 * 250} {25}$$→50

he difference between endothermic and exothermic REACTIONS lies in the words themselves. "Thermic" refers to HEAT, just as in the word "thermometer." "Exo" means "outside" and "endo" means "inside." Thus, an endothermic reaction pulls heat into an object or area, while an exothermic reaction expels heat. From this basic definition of the terms, you can understand a variety of other facts about these two types of chemical reactionFrom a chemistry standpoint, there is no such thing as cold -- only an absence of heat. Endothermic reactions draw heat energy into themselves. As that heat leaves the surrounding area, the temperature DROPS. For example, a chemical first aid cold pack works because of an endothermic reaction between WATER and ammonium nitrate. Because it pulls heat energy into the pack, the pack FEELS cold to the touch as it draws heat from the surrounding area.

3 Rd partExplanation:PLZZ follow mark as brainest INBOX and ALSO thank

teHere is your ans:- Explanation:In simple terms, the endothermic reactions absorb energy from the SURROUNDING that is in the form of heat. While, the EXOTHERMIC reaction RELEASES energy into the surrounding from the systemI HOPE it will HELP you❤️❤️

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16.6%Explanation:MASS of soln= DENSITY volume1cm3= 1 mlw/w% =10. 1/6x 100= 16.6% 60HOPE IT HELPS

z=3, 11 because they BELONG to same GROUP

a partits answer is a PART density because SEPARATION of SAND from ammonium chloride depends on the PHYSICAL property of density

oxide is also KNOWN as Quick Lime . Calcium HYDROXIDE is also known as SLAKED Lime .

there are the EXAMPLES in the QUESTION

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