Please help use proper significant figure

Q: 1. Consider the following reaction: Mg(s) + 2HCI(aq) → MgCl2(aq) + H;(g) A piece of magnesium was dr...

A: Hii there, As there are multiple sub parts posted. we are answering first-three sub parts. If you ne...

Q: 6. How much heat will be released by cooling 52.0 g steam at 225.0°C to ice at -15.8°C? HC

A: Here we have to determine the heat released by cooling 52 gram of steam at 225°C to ice at -15.8°C. ...

Q: 7. A student prepares two standard solutions of a food dye. The absorbances at 490 nm are recorded a...

A: Note: As per our company guideline we can answer only one question. Kindly repost the question menti...

Q: Compare diffusion and osmosis

A: The movement of molecules from higher concentration to lower concentration is known as diffusion. Di...

Q: Which of these types of coprecipitation happens with greater probability when the particle sizes of ...

A: With smaller particle size, a higher effective area is available.

Q: Hypercon jugation involves electron delocalization frem 4 Perbital to an sp bybrid orbital. Select t...

A: Hyperconjugation: The delocalization of sigma electrons into an adjacent empty or partially filled p...

Q: give 2 tests to identify the presence of methyl orange

A: Methyl orange shows different colours in acid, base and neutral substance. It changes colour from re...

Q: Calculate the heat of hydrogenation of ethane (C2H4): C2H4(g) + H2(g) → C2H6(g), given the following...

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Q: Directions. What would you use in order for the following reactions to occur, or oxidizing agent red...

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Q: Part A A major source of sodium metal is the electrolysis of molten sodium chloride, What magnitude ...

A:

Q: Consider the following decomposition reaction: 2SO3(g) = 2SO2(g) + O2(g) When 12.0 mol of SO3 is pla...

A:

Q: Directions. What would you use in order for the following reactions to occur, agent. an oxidizing ag...

A: oxidizing agent- A reactant whose  oxidizes the other reactant in reaction means increases the oxida...

Q: What is the hydronium ion concentration in a 0.100 M solution of ammonium nitrate, NH4NO3, a salt co...

A: What is the hydronium ion concentration in a 0.100 M solution of ammonium nitrate, NH4NO3 a salt com...

Q: Why does sodium fluoride have a melting point of 993°C but nitrogen has a melting point of -210°C?

A: Please find your solution below : Melting point of any substance is defined as the temperature at wh...

Q: Decide whether spontaneous or non spontaneous, justify your answer

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Q: Given the following reaction: Na2S2O3 + AgBr → NaBr + Na3[Ag(S2O3)2] (a) How many moles of NazS2O3 a...

A: first balance the given equation balanced equation is 2Na2S2O3 + AgBr -------> NaBr + Na3[Ag(S2O3...

Q: X CO Which one of the following has the smallest atomic radius? Li, Na, Be, Mg Edit View Insert Form...

A: Atomic Radius is the distance from the center of the nucleus to the outermost shell. 

Q: The chemical reaction shown was performed and the concentration of CCl, was measured over time. Cl, ...

A:

Q: Suppose that 1.07 moles of A at 3.21 atm and 298.15 K and 8.02 moles of B at 4.30 atm and 298.15 K a...

A: ∆Gmix=n1RT ln P1P1+P2+n2RT ln P2P1+P2     Let 1 refers to A and 2 refers to B.

Q: What would be the major product in the following reaction? OAc H3C, PhCu,Li

A: Detail mechanistic pathway is given below by which we get the final product

Q: When 153. g of glycine (C,H,NO2) are dissolved in 1400. g of a certain mystery liquid X, the freezin...

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Q: What mass in grams of NaCl would need to be added to 5201 g of water to increase the boiling tempera...

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Q: Value of () is equal to.... as T. ), ƏT A(se (ap)y

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Q: Identify the correct relationship of Kc and Kp Kc=Kp Kc≠Kp Kc>Kp Kc

A: .

Q: a. Li CUCL, b. 2 ohloro 2 methy propane ČI

A: Detail mechanistic pathway is given below

Q: 6. My theoretical yield for a reaction is 163.3mol of Ag and I get 16.6g of Ag, what is percent yiel...

A: Percent yield is calculated using the following formula: Percent yield=Actual yieldTheoretical yield...

Q: 12. Find the limiting reactant if 5.00g of SrH2 react with 5.00g of H2O according to the following r...

A:

Q: Which reaction will produce a monohalogenated alkyl halide? Select the correct response.: Halogenati...

A: Reaction which gives monohalogenated alkyl halide.

Q: If you are writing an equation of a weak electrolyte dissolving in H20 would it still create cations...

A: An electrolyte will be a strong electrolyte if it is completely dissociated in the presence of water...

Q: =14mole Ne hole a , of ena ar in a light bulb. Thc bulb Sat he sad has a frssure of -81ata shat is t...

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Q: The gas-phase reaction of NO with F2 to form NOF and F has an activation energy of Ea = 6.30 kJ/mol ...

A: Minimum  energy needed for the completion of reaction is known as activation energy.

Q: What is the difference between General Test and Confirmatory test

A: Chemistry can be defined as the branch of science that deals with the composition, and structure of ...

Q: If I have 21 moles of gas held at a pressure of 78 atm and a temperature of 900 K, what is the volum...

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Q: Which intermediate was formed by hydroboration- oxidation reaction? Select the correct response.: O ...

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Q: Draw the Bohr-Rutherford Diagram of ammonia, NH₃.

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Q: Determine the enantiomer of Carbon 1 and Carbon 2. If it is an S or an R enantiomer.

A: Configuration of the molecule.

Q: A certain reaction has a relatively constant standard enthalpy of reaction of 36.2 kJ/mol between th...

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Q: Calculate AH for the reaction C(graphite) + 2H2(g) CHạ using the following data: C(graphite) + O2(9)...

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Q: If metal X is lower than metal Y in the activity series, then metal X replaces ions of metal Y in a ...

A: In activity series metals are arranged by their reactivity from highest to lowest.  Given is metal X...

Q: A cylinder of gas has a pressure of 4.40 atm at 25°C. At what temperature, in K will it reach a pres...

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Q: Rei and Akari, two vinegar enthusiasts, are each tasked to determine the acetic acid content of thei...

A: Given: mass of KHP = 0.540 g Volume of KHP stock solution = 10.0 mL Volume of diluted KHP solution =...

Q: Experiment data: (Imagine you obtain the data below) Sample ICP-AES signal Note 1000 ppb Fe solution...

A: Given data:

Q: What will be the mass of Sodium carbonate (MW = 106.0 g/mol) in a sample solution if this salt is ti...

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Q: A chemist went on a trip to Zambales to obtain a sample of chalcocite (copper (I) sulfide), one of t...

A: Metallic copper is heated in a hot plate and a different oxide of copper is formed. Here, we have to...

Q: Calculate the final percent concentration of the erythrocytes in each well: (NaCl, CaCl2, MgCl2) ea...

A: Erythrocyte concentration is 10%. Concentration of each compound = 0.25 M  

Q: The following plot was obtained from the supernatant of a sol after it had been pH adjusted with som...

A: Given spectra:  

Q: FeClz is highly corrosive and is irritating to skin and eyes. Which waste container should sol waste...

A: FeCl3 is a highly corrosive. FeCl3 is very acidic and we used basic container to put in.

Q: Select the correct response: CH3CHCH,CH2 CH3 CH;CHCH,CH, CH3CH2CHCH3 CH3 CH;CH,CCH3 O CH;CH,CH,ČH,

A: Carbocation is species in which carbon is carrying positive charge. Carbon is sp2 hybridized in carb...

Q: Which is true for >C=0? Select the correct response: O Lewis base both electrophilic and nucleophili...

A:

Q: 2) For the equilibrium shown below, list three things that you could do to decrease the yield of the...

A: Equilibrium constant is defined as products concentrations divided by reactant concentrations to the...

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.