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Unreactivemetals such as gold are found in the Earth's crust as the uncombined elements. However, most metals are found combined with other elements to form compounds.An ORE is a rock that contains enough of a metal or a metal COMPOUND to make EXTRACTING the metal worthwhile:low-grade ores contain a small percentage of the metal or its compoundhigh-grade ores contain a larger percentageMost metals are extracted from ores found in the Earth's crust. It is more expensive and wasteful to extract a metal from a low-grade ore, but most high-grade ores have ALREADY been USED.

b) 12.09 eV Explanation:I don't REMEMBER the FORMULA but I remember this same question and the ANSWER is b) 12.09 eV

onsider all the OPTIONS listed in the question, K-Cl stands out because it represents an ionic BOND between a METAL and a NON metal. electrons are transferred from POTASSIUM to chlorine. Hence, it has the highest percentage of ionic character.

Here is you ANSWERS OK BYE

tion:Hint: We SOLVE this problem by using the formula of simple interest.The formula for the simple interest is given asSI=P×T×R100Where P is the principal amount, T is the time period and R is the rate of interest per annum.After finding the simple interest for all years from 1 to 6 we create a table of ordered pairs containing the number of years as x coordinate and simple interest as y co – ordinate so that we can plot them on a graph of a certain scale.Complete step by step answer:We are given that the principal amount as⇒P=8000We are also given that the rate of interest per annum as⇒R=5Let us assume that the time period as TWe know that the formula for the simple interest is given asSI=P×T×R100Where, P is the principal amount, T is the time period and R is the rate of interest per annum.By using the above formula we get the simple interest in terms of time period as⇒SI=8000×5×T100⇒SI=400TNow, let us take the time period as 1 year then we get the simple interest of 1 year as⇒SI1=400×1⇒SI1=400Now, let us take the time period as 2 years then we get the simple interest for 2 years as⇒SI2=400×2⇒SI2=800Now, let us take the time period as 3 years then we get the simple interest for 3 years as⇒SI3=400×3⇒SI3=1200Now, let us take the time period as 4 years then we get the simple interest for 4 years as⇒SI4=400×4⇒SI4=1600Now, let us take the time period as 5 years then we get the simple interest for 5 years as⇒SI5=400×5⇒SI5=2000Now, let us take the time period as 2 years then we get the simple interest for 2 years as⇒SI6=400×6⇒SI6=2400Now, let us create a table containing the order pairs containing number of years as x co – ordinate and simple interest as y co – ordinate as followsTime period (T)Simple interest (SIi)Ordered pair(T,SIi)1 400 (1,400)2 800 (2,800)3 1200 (3,1200)4 1600 (4,1600)5 2000 (5,2000)6 2400 (6,2400)Now, let us consider a scale of the required graph as followsOn X – axis 1 unit equal to 1 yearOn Y – axis 1 unit equal to RS. 400By using the above scale and the coordinate of points in the table we get the graph asNote: Students may make mistakes in finding the simple interest of 2, 3, 4, …, 6 years.By using the simple interest formula for 2 years we get⇒SI2=8000×5×2100⇒SI2=800But students may make mistakes in taking the principal value for the time period of 2 years.The amount after the 1 year is given as⇒A=8000+400=8400

sorry i didn't know the answerkya aaap YE question SERIOUSLY ASK ker rehe ho toe MAE answer. nahi ....,.dungi..kyu dusre kae POINTS kherab keru.

water which COLLECTS as droplets on a cold surface when humid AIR is in CONTACT with it."the INSIDE of the cab steamed up with condensation"

it MEANS MULTIPLICATION ✖

So, from the above discussion we can say that non-metals don't REACT directly with water but non –metals acidic OXIDES react with water to FORM acids. So, it is a true STATEMENT. react with water, OXYGEN and other chemicals to form sulphuric and nitric acids.

Photosynthesis, the process by which green plants and certain other organisms transform light ENERGY into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert WATER, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.Sorry mene aapko gaali di or meri taraf se apni friends ko bhi sorry bol dena WESE mene group me leave karte karte sorry bola THA but agar vo abhi bhi gussa hai to really sorry (╥﹏╥)

liquid has large SPACE INSIDE it but SOLID had LESS space

வனக்கம நான்பா தமிழ் பசங்க

acha kya karu maiuske BHI man.ab mai kya karuPhotosynthesis is the process by which plants use sunlight, WATER, and carbon dioxide to create oxygen and energy in the form of sugar.gussa na karo YAAR MOOD kharab na karo

tion:Temperature - from the VIEW of chemistry CHANGE in temp. can CAUSE change in state of a SUBSTANCE. Ex- water to ice. So, pressure and temperature will ALSO influence change.

The bimolecular transition state of the E2 pathway means that orientation of the BASE and LEAVING group are a primary consideration. Both the base and leaving group are electron rich and electrostatically repel each other forcing an anti-coplanar orientation between the base and leaving group.Explanation:hope this helps you my FRIEND give BRAINLIEST answer

tion:MathematicsScienceChapters in Science Exemplar Problems - class 6Exercises in Components of FoodQuestion 11Q5) (a) ________ is caused by deficiency of Vitamin D.(b) Deficiency of_ causes a disease KNOWN as beri-beri.(c) Deficiency of Vitamin C causes a disease known as____ .(d) Night blindness is caused due to deficiency of___ in our FOOD. Answer.SolutionTranscriptSolution:(a) Rickets(b) Vitamin B1(c) Scurvy(d) Vitamin AOur top 5% students will be awarded a special SCHOLARSHIP to Lido.LidoHomeYoung Leaders ScholarshipPricingTestimonialsCareersContact UsTry a ClassJoin classCoursesCodingEnglishMathsScienceHeadstartTeachersTeaching At LidoMeet The TeachersApply NowBook a Demo with usMathsScienceEnglishCodingHeadstartSyllabusMathsGrade 4Grade 5Grade 6Grade 7Grade 8Grade 9All StarsGrade 9ScholarsGrade 10Lido HeadstartKindergartenGrade 1Grade 2Grade 3ScienceGrade 4Grade 5Grade 6Grade 7Grade 8Grade 9All StarsGrade 9ScholarsGrade 10EnglishGrade 4Grade 5Grade 6Grade 7Grade 8Grade 9Grade 10CodingGrade 4Grade 5Grade 6Grade 7Grade 8Grade 9Quick LinksLoginBook a free class nowTest My SystemTerms & PoliciesPrivacy PolicyTerms of ServicesPayments and RefundsEMI Terms and ConditionsSitemapNCERT Question BankMathsClass 6Class 7Class 8ScienceClass 6Class 7Class 8Selina Question BankMathsClass 6Class 7Class 8PhysicsClass 6Class 7Class 8BiologyClass 6Class 7Class 8Allied Question BankChemistryClass 6Class 7Class 8Connect with us on SOCIAL media! 2021 © QUALITY Tutorials Pvt Ltd All rights reserved`

(a)the gas released at the cathode will be hydrogen and the gas released at the anode will be OXYGEN(b) REDOX(C)PH will REMAIN same

hiijjdgvhvcftfchjycvb JFK ughhfxgjnnbvxfthhvExplanation:hgdgnjajjajsjsjjsjsjdjdhdhhdhdhfhdhdhhdhdhdhdhhd

220gExplanation:Given: Volume of CO2 gas at STP = 112L Gram molecular mass of CO2 = 44g First, we will calculate the number of moles so that we can find the mass of CO2 gas As we know 1 mole of any gas occupies 22.4 litres of volume. ∴ 1 mole of NH3 = 22.4 litre 22.4 × Number of moles = 112 litresNumber of moles = 112 L / 22.4 L                                         Number of moles = 5 Now, we can calculate the mass of CO2 gas by applying the FORMULA given: We can WRITE, Mass of CO2 gas = Number of moles × GMM of CO2Mass of CO2 gas = 5 × 44g Mass of CO2 gas = 220g Thus, mass of 112 L CO2 gas at STP is 220gPLEASE MARK ME AS BRAINLIEST

but you don't be sad SEE you can find fake friends very easily in this world but true friends very hard And I have NEVER broke any FRIEND HEART So I am a true friend That's why I didn't accept her friend request

chemist John DaltonThe modern ATOMIC THEORY, which has UNDERGONE continuous refinement, began to FLOURISH at the beginning of the 19th century with the work of the English chemist John Dalton.

निम्नलिखित शब्दों के आधार पर एक कहानी लिखो : पानी, पुस्तक, बिल्ली, राख

Meli HELP KL do PLEEEED yrrMai BAHUT PARESHAN huuuu

hereeeExplanation:1 IGNITION2 COMBUSTIBLE

tion:USNE tumko follow nhi KIYA..toh QUES KAISE pta chle ga..HAHAHAHAH

cept of electronegativity was introduced by LINUS Pauling in 1932; on the Pauling scale, fluorine is assigned an electronegativity of 3.98, and the other elements are SCALED RELATIVE to that VALUE....Periodic Trends — Electronegativity.4AGe 2.015AAs 2.186ASe 2.557ABr 2.968AKr 3.00

Scc is the RIGT answer EXPLANATION:PLEASE mark me brainliest

.................................D R A F T S

Atomicity of an ELEMENT is a measure of total NUMBER of atoms PRESENT in a molecule. Example, an oxygen molecule contains two oxygen atoms. THEREFORE, the atomicity of oxygen is 2.

tion:Defects of RUTHERFORD’s MODEL of atom: i) Electron rotating AROUND the nucleus is only a suggestion without any experimental proof. II) A rotating electron NORMALLY will spend its energy and ultimately should fall into the nucleus. But this never happens in an atom. Rutherford suggestion, on electron rotating around the nucleus, does not offer any explanation for the fact, why electron does not lose energy.Mark me brainliest.

wish is your ANSWER EXPLANATION:Photosynthesis is the process in which plants MAKE their FOOD by the help of sunlight WATER and oxygen

theoretical form of energy postulated to ACT in opposition to GRAVITY and to occupy the entire universe, accounting for most of the energy in it and CAUSING its EXPANSION to accelerate.