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No properties within the CV change with time. Thus, volume, mass, and energy of CV remains constant. ... It means that the mass FLOW RATE and the properties of the fluid at an opening must remain constant during a STEADY flow. 3- The heat and mass interactions between the CV and its surroundings do not change with timeExplanation:hope this helps you my FRIEND ☺️

Use the formula ∆H = m X s x ∆T to solve.Once you have m, the mass of your reactants, s, the SPECIFIC HEAT of your product, and ∆T, the temperature change from your reaction, you are prepared to FIND the enthalpy of reaction. Simply plug your values into the formula ∆H = m x s x ∆T and MULTIPLY to solve.Explanation:hope this helps you my friend

The industry, GENERALLY, can measure how much energy each process releases when it is performed, so that they can make effective energy CHOICES. ... Hess' LAW shows that the energy change is independent of the pathway, this means that the same amount of energy is released through burning food.16-Jan-2018Explanation:HOPE this HELPS you my friend ☺️

Monovalent atoms are those atoms which SHOW a valency of 1, while divalent atoms are those which show a valency of 2. For example, sodium (NA), chlorine, potassium etc are monovalent while magnesium, OXYGEN, calcium are divalent.Explanation:hope this helps you my FRIEND

Yes Magnesium on REACTION with N2, FORMS NITRIDE 3Mg + N2 --- MG3N2 hope this will HELP you

Use the formula ∆H = m x s x ∆T to solve.Once you have m, the MASS of your reactants, s, the specific heat of your product, and ∆T, the temperature change from your reaction, you are PREPARED to FIND the enthalpy of reaction. Simply plug your values into the formula ∆H = m x s x ∆T and multiply to solve.Explanation:hope this helps you my FRIEND ☺️

plss do BrainliestExplanation:·Carbon makes 4 electrons to form a covalent bond.·It has a number of allotropes and other forms of existence. ...·Carbon is highly UNREACTIVE under conditions which are normal.·This chemical element is represented with the symbol C.·It CONTAINS 6 protons in the NUCLEUS and thus, have atomic number 6

The ANSWER is 1:1 Explanation:HOPE my answer is correct, If YES pls mark me as BRAINLIEST

Depression in freezing point is given byΔT f =i×K f ×mΔT f =T fo −T f i= Vant hoff FACTOR =1 (for non electrolyte)K f =1.86K/mm= MolalityΔT f =i×K f × weight of solvent in kgmoles of solute Moles of SOLUTION (UREA) =0.02Molar mass of solute (urea) =60g/molWeight of solvent (water) =100g=0.1kg(T F0 −T f )=1×1.86× 0.1kg0.02 (0−T f ) o C=0.372T f =−0.372 o C

3:2 RATIO of combination of MG and O will RESULT in MgO, in which 24g of Mg reacts with 16g of OAS, 16g of O reacts with 24g of MgThus, 14g of O = 24 × 14/16 = 21ghope this will help you

answer: B) 2N, 1MExplanation:MARK as brainliest BUDDY

Explanation:A biomolecule or biological molecule is a loosely USED term for molecules present in organisms that are essential to one or more typically biological processes, such as cell division, morphogenesis, or development.[1] BIOMOLECULES include large macromolecules (or polyanions) such as proteins, carbohydrates, lipids, and nucleic acids, as WELL as small molecules such as primary METABOLITES,

0.6 and 1.2 MILLIEQUIVALENTS PER literExplanation:2.0 mEq/L and above

Melting ICE cubesMelting solid saltsEvaporating LIQUID waterExplanation:Hope it is clearPlease MARK me as a Brainliest

The FIRST and most reliable WAY to kill a lithium BATTERY is simply to charge it too much. Charge it above 14.6V and rapid cell damage will occur. Resulting in a SHORT circuit in the weakest cell, which then rapidly increases VOLTAGE across the other cells.|| हर हर महादेव ||

Do not open a LiPo battery as the reaction is very fast, will CATCH FIRE, and MAY result in an explosion.|| हर हर महादेव ||

More than ONE million CARBON COMPOUNDS have been described in chemical literature, and chemists synthesize many new ones each YEAR.|| हर हर महादेव ||

The reaction is endothermic and the enthalpy change is positive. If more ENERGY is produced in bond formation than that NEEDED for bond BREAKING, the reaction is EXOTHERMIC and the enthalpy is NEGATIVE.|| हर हर महादेव ||

Hess's law states that the total ENTHALPY change does not rely on the path taken from BEGINNING to end.So, you can calculate the enthalpy as the sum of several SMALL steps.There are a few RULES that you must follow when manipulating an equation.● You can reverse the equation. This will change the SIGN of ΔH.● You can multiply the equation by a constant. You must then multiply the value of ΔH by the same constant.● You can use any combination of the first two rulesHey Mate!!!! Here is your answer ♣️

The WATER,the WATERE water,the water,the water,the water ,the water,the water

tion:properties =NON lustorousnon SONOROUS non MALLEABLE non. ductile LOW tensile strengthetc hope it HELPS

This is CALLED acid CATALYZED ester hydrolysis. Esters can also react with amines or ammonia to FORM amides. This reaction doesn't involve acid catalysis, so the first step is NUCLEOPHILIC attack at the carbonyl carbon. Proton transfer follows and loss of the alcohol PORTION of the ester.

Students PLACED marble chip OVERNIGHT in pure water to observe its SIDE effects on the marble. Explanation: As we all know marble is made up of limestone. It is a form of rock.Explanation:PLS MARK AS BRAINLIST

An atom is the smallest unit of ordinary matter that forms a chemical ELEMENT. Every solid, liquid, gas, and PLASMA is COMPOSED of neutral or ionized atoms. Atoms are EXTREMELY small, typically around 100 picometers across.

The Nernst equation provides a relation between the cell POTENTIAL of an ELECTROCHEMICAL cell, the standard cell potential, TEMPERATURE, and the REACTION quotient. ... The Nernst equation is often used to calculate the cell potential of an electrochemical cell at any given temperature, pressure, and reactant concentration.

candle burns, the REACTANTS are FUEL (the candlewick and WAX) and oxygen (in the AIR). The products are carbon dioxide gas and water vapor.

Like Li and Be, Boron – the first MEMBER of group 13 also shows anomalous BEHAVIOUR due to EXTREMELY low SIZE and high nuclear charge/size RATIO, high electronegativity and non-availability of d electrons. ... (1) Boron is a typical non- metal whereas other members are metals.Done !!!

tion:The s-Block ELEMENTS. Lithium forms NORMAL oxide, sodium forms PEROXIDES while K, Rb and CS form superoxides . On combination with oxide anion, the positive field of lithium ion restricts the SPREAD of negative charge towards another oxygen atom and thus prevents the formation of a higher oxide.Mark me as Brainlist

The ENTROPY of the system increases during a COMBUSTION REACTION. The COMBINATION of energy decrease and entropy increase DICTATES that combustion reactions are spontaneous reactions.

The CHANGE in ENTHALPY is ZERO for isothermal processes CONSISTING of ONLY ideal GASES. For ideal gases, enthalpy is a function of only TEMPERATURE. Isothermal processes are by definition at constant temperature. Thus, in any isothermal process involving only ideal gases, the change in enthalpy is zero.

Of the alkali METALS, only lithium REACTS with nitrogen, and it FORMS a nitride (Li3N). In this respect it is more similar to the alkaline-earth metals than to the Group 1 metals. Lithium also forms a relatively stable hydride, whereas the other alkali metals form hydrides that are more reactive.

The STANDARD enthalpy of formation of CARBON MONOXIDE is -99 kk/molExplanation:hope this helps you my FRIEND ☺️

tion:When enthalpy is NEGATIVE and delta H is less than zero, this means that a SYSTEM released HEAT. This is called an exothermic reaction. ... For example, when WATER changes from liquid to gas, delta H is positive; the water gains heat. When water changes from liquid to solid, delta H is negative; the water LOSES heat.Mark me as Brainlist

tion:ORGANIC compounds are IMPORTANT because all living organisms contain carbon. They are the basic components of many of the cycles that drive the earth. For EXAMPLE, the carbon CYCLE that includes the exchange of carbon between plants and animals in photosynthesis and CELLULAR respiration.Mark me as Brainlist

Explanation:COMPOUND NAME MOLECULAR WEIGHT MOLECULAR FORMULA 1 Acetic ACID 60.052 g/mol CH 3 COOH 2 Hydrochloric acid 36.458 g/mol HCL 3 Sulfuric acid ‎98.072 g/mol H 2 SO 4 4 Acetate 59.044 g/mol CH 3 COO –

this is UR answerhope it HELP

istry, an element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei. Unlike chemical compounds, chemical elements cannot be broken down into simpler substances by chemical means. The number of protons in the nucleus is the defining property of an element, and is referred to as its atomic number (represented by the symbol Z) – all atoms with the same atomic number are atoms of the same element.[1] All of the baryonic matter of the universe is composed of chemical elements. When different elements undergo chemical reactions, atoms are rearranged into new compounds held together by chemical bonds. Only a minority of elements, such as silver and gold, are found uncombined as relatively pure native element minerals. Nearly all other naturally-occurring elements occur in the Earth as compounds or mixtures. Air is primarily a mixture of the elements nitrogen, oxygen, and argon, though it does contain compounds including carbon dioxide and water.The periodic table of the chemical elementsThe history of the discovery and use of the elements began with primitive human societies that discovered native minerals like carbon, sulfur, copper and gold (though the concept of a chemical element was not yet understood). Attempts to classify materials such as these resulted in the concepts of classical elements, alchemy, and various similar theories throughout human history. Much of the MODERN understanding of elements developed from the work of Dmitri Mendeleev, a Russian chemist who published the first RECOGNIZABLE periodic table in 1869. This table organizes the elements by increasing atomic number into rows ("periods") in which the columns ("groups") share recurring ("periodic") physical and chemical properties. The periodic table summarizes various properties of the elements, allowing chemists to derive relationships between them and to make predictions about compounds and potential new ones.By November 2016, the International Union of Pure and Applied Chemistry had recognized a total of 118 elements. The first 94 occur naturally on Earth, and the remaining 24 are synthetic elements produced in nuclear reactions. Save for unstable radioactive elements (radionuclides) which decay quickly, nearly all of the elements are available INDUSTRIALLY in varying AMOUNTS. The discovery and synthesis of further new elements is an ongoing area of scientific study.

5/9(F - 32) सूत्र का उपयोग कर के भी फ़ारेनहाइट को सेल्सियस में रूपांतरित कर सकते हैं, और 9/5C = F - 32 का उपयोग कर के सेल्सियस को फ़ारेनहाइट में बदल सकते हैं।Aagaya NA !!!