Explore topic-wise InterviewSolutions in Current Affairs.

tion:The heart is a muscular organ composed of 4 chambers; the LEFT atrium and right atrium (PL. atria) and the left ventricle and right ventricle (pl. ventricles). The left and right sides of the heart are separated by a septum. The right atrium receives deoxygenated blood through the vena cava. After passing through the tricuspid valve, the right ventricle pumps this deoxygenated blood out through the pulmonary artery to the lungs. This is called the pulmonary circuit. Simultaneously, the left atrium receives OXYGENATED blood, from the lungs, through the pulmonary vein. Once this oxygenated blood passes through the bicuspid valve and into the left ventricle, it is pumped out through the AORTA to the rest of the body. This is called the systemic circuit. Valves act to partition the atria from the ventricles but most importantly prevent the backflow of blood. STRUCTURALLY, the left wall of the heart is thicker hence maintains a higher blood pressure compared to the right side of the heart. All in all, humans have a double circulatory system through which blood is pumped by the heart to supply cells of the body.

hiExplanation:It has to ANALYSE with moles of NACL is equal to 5.85/58.5=0.1. Therefore, the VOLUME of solution is identified with 0.5 litre and therefore molarity is calculated as 0.1/0.5=0.2 The moles of solute per volume can be MEASURED as 0.2hope it will be helpful to yoube happy and healthy ❤️Follow me

re is a DIFFERENCE between MASS and weightmass is a ammount of MATTER in an object while weight is the measurement of the gravitational PULL on a objectlet take a example the weight of an object is different in earth and moon while mass is equal in both moon and earthmark me as a brainliest FOLLOW me

A) 60 KM/hExplanation:As it NEED to cover 60 km in 1 hr so it should speed to 60km/h.

Explanation:              As PER the equation, 2 moles of H2 REACT with 1 mole OXYGEN to form 2 moles of water. 4 G of hydrogen = (4 g / 2g/mol) = 2 moles of hydrogen oxygen MOLECULE is O2 that is one mole of O2 weighs 16 grams

I HOPE a) EXPLANATION:I hope it's HELPS you

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ans.1 When you burn something in presence of oxygen, energy is given out in the form of heat. The burning of a matchstick, the energy evolved is due to a chemical change. When we whitewash our house, we dissolve quicklime in water. Bubbles and gases evolve and the container becomes hot.Explanation:2.Burninga sugar cube is a chemical change. Fire activates a chemical reaction between sugarand oxygen. The oxygen in the air reacts with the sugar and the chemical bonds are broken.3.Crushing a can.Melting an ICE cube.Boiling water.Mixing sand and water.Breaking a glass.Dissolving sugar and water.Shredding paper.Chopping wood.4.The difference between a physical reaction and a chemical reaction is composition. In a chemical reaction, there is a change in the composition of the SUBSTANCES in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition. 5.physical change Crushing a can.Melting an ice cube.chemical change Burning wood.Souring milk.6.an alteration in the physical and chemical properties of matter due to the effect of some kind of energy. E.g. Here ice get energy from the surroundings and get converted into water. means here energy is involved in changing the state of ice to liquid7.When a candle burns, both physical & chemical changes occur. Physical Changes in Burning Candle: On heating, candle wax melts and form liquid wax. It is a physical change. ... This wax vapor near to flame burns and gives new substances like Carbon Dioxide, Carbon soot, water vapours, heat and light8.When Water is ADDED to quick lime, then a lot of heat is released and heavy fizzing occurs because Slaked lime is fromed ( Calcium Hydroxide). CaO + H₂O → Ca(OH)₂ + heat energy. ANSWER: When quick lime is added to water, it reacts to form calcium hydroxide (slaked lime).HOPE it will help you mark me as brilliant

because it is OBTAINED from FIBRES can be woven like those of NATURAL fibres so the correct ANSWER is (c)Explanation:PLEASE mark as brainliest and please follow me

Carbon BELONGS to group 14... 4A & PERIOD 2

The H3O+ ion is CONSIDERED to be the same as the H+ ion as it is the H+ ion joined to a water MOLECULE. The proton cannot EXIST in aqueous solution, due to its positive charge it is attracted to the ELECTRONS on water molecules and the SYMBOL H3O+ is used to represent this transfer.The equation can be written as:H+ + H2O(l) → H3O+(aq).This is hydrolysis as it is involving water as a reactant.PLEASE MARK MY ANSWER BRAINLIEST

Explanation:   Motion that repeats itself REGULARLY is called periodic motion. One complete repetition of the motion is called a cycle. The duration of each cycle is the PERIOD. The frequency refers to the number of CYCLES completed in an interval of TIME. It is the reciprocal of the period and can be calculated with the equation f=1/T. Some motion is best characterized by the angular frequency (ω). The angular frequency refers to the angular displacement per unit time and is calculated from the frequency with the equation ω=2πf. Key Terms period: The duration of one cycle in a repeating event. angular frequency: The angular displacement per unit time. frequency: The quotient of the number of times N a periodic phenomenon occurs over the time t in which it occurs: f = n / t.

no there is no CHEMICAL CHANGE freezing of ICE it CHANGES it's state all are physical changes

is OPTION A PLS mark BRAINLIEST I will GIVE U more points

The PH coloue of Potassium Hydroxide WHOSE pH is 12, the COLOUR will be a kind of dark purple or dark blueMark me as Brainliest PLEASE...:)

m that allows all the light INCIDENT on it to PASS through it is called a transparent MEDIUM. Examples of transparent OBJECTS are plain glass, a reading glass, a plastic scale, window panes, a soap bubble and pure waterAnswer:Explanation:

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I don't UNDERSTAND that

tion:Carding is a MECHANICAL process that DISENTANGLES, cleans and intermixes FIBRES to produce a continuous web or sliver SUITABLE for subsequent processing.PLS MARK AS BRAINLIST....

d. All of them .is yout ANSWER DEAR...:)

Alloys are homogeneous MIXTURES of two or more elements. The elements could be two metals, or a METAL and a non-metal. ... An ALLOY is a material composed of two or more metals or a metal and non metal. It may be a solid SOLUTION of the elements of single phase or a mixture of two or more metallic phases.

Explanation:In the formation of C2H2, the carbon atom needs extra electrons to form 4 bonds with HYDROGEN and other carbon ATOMS. As a result, one 2s2 PAIR is moved to the empty 2PZ orbital. The 2s orbital in each carbon hybridizes with one of the 2p orbitals and forms two sp hybrid orbitals.

In the PREPARATION of NH3 by Haber's process IRON oxide acts as a positive catalyst and INCREASES the yield of ammonia in SPITE of less reaction of NitrogenExplanation:

please mark as brainliest and please follow meExplanation:Abnormal MOLAR Masses1 Abnormal MOLECULAR MASSES. 1.1 (i) The solutions should be dilute. 1.2 (ii) The SOLUTE must not dissociate or associate in solution.2 Association of Solute Particles.3 Dissociation of Solute Molecules.4 Van't Hoff Factor.5 Van't Hoff Factor and EXTENT of Dissociation or Association in an Electrolytic Solution.

here is your answer EXPLANATION:plz mark as BRAINLIEST answer because I WANT to level up.

Here is the IUPAC NAME =4-hydroxy-7,10-biphenyl dec-2,6,8-en-1-al

llary process.Hope this ANSWER MAY HELP U!!

is a type of rapid vaporization that occurs when a the particles of a liquid are heated to its BOILING point. Large bubbles of gas form throughout the the liquid and move to the surface, leaving the liquid. Steam is the gaseous water molecules that form above boiling water.Condensation occurs when the particles in a gas cool enough (lose energy) to change to the liquid STATE. An example of condensation is when a glass of ice water forms water droplets on the outside. The molecules of water vapor next to the glass cool and condense into liquid water.Melting occurs when a solid is heated until its particles reach a HIGH enough energy to reach its melting point, changing it into the liquid state. An example of melting is an ice cube turning into liquid water when you set it on a surface, or hold it in your hand.Freezing occurs when a liquid is COOLED until its particles reach a low enough energy to reach its freezing point, changing it into the solid state. This occurs to liquid water when it is placed in a freezer. (ACTUALLY, anything that is solid is frozen!)

Explanation:A Neutralization REACTION occurs when a strong acid reacts with a strong base to produce water and a salt (ionic compound). In our case, SULFURIC acid (strong acid) will react with sodium hydroxide (strong base) to form water and sodium sulfate: H 2 S O 4 + 2 N a O H → N a 2 S O 4 + 2 H 2 O We start with the units that we WANT to end up with and we set that equal to our given value, which will be multiplied by a conversion factor (the molar ratio from the balanced chemical EQUATION). The  98.08 g m o l represents the molar mass of sulfuric acid and the  40.0 g m o l is the molar mass of sodium hydroxide. So, what we have is: g N a O H =  25.0 g H 2 S O 4 × 1 m o l H 2 S O 4 98.08 g H 2 S O 4 × 2 m o l N a O H 1 m o l H 2 S O 4 × 40.0 g N a O H 1 m o l N a O H  =

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yes, a sheep PROVIDE wool in his all life in winters the woll GROWS and in summers it is TAKEN out by there keepers because wool is hair of sheep LIKE human hairs which grows to protect them from cold so they are permanent in sheepshope it help chandan

Option (d) VARIEGATED LEAVES have YELLOW patches that INDICATES absense of chlorophyll..

atomic number =no of PROTON 238= no of protonno of electron = no of proton no of electron = 238mark me brainlest

tion:chemical reactions involve formation or SEPERATION of bonds.in chemical REACTION always new SUBSTANCE is FORMED

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It is AExplanation:Square planar COMPLEX do not show OPTICAL isomerism because they always show PLANE of symmetry ALONG the plane of geometry. Both assertion and reason are CORRECT and reason is correct explanation for assertion.