A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 × 10° kg. Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.

Q: Zn(s) + What is the effect on the cell potent The pressure of H2 gas is increased in the cathode. а....

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Q: b. Explain with balanced chemical equation, If 3.0 mole BaCl2 react with 2.0 moles of sodium phospha...

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Q: topic:  Proper Use and Calibration of the pH meter Calibration is done using buffer solutions every...

A: A buffer solution is the chemical solution which is used for the calibration of the pH meter.  Calib...

Q: e numbers to order the substances by increasing boiling point. Let #1 be the substance with the LOWE...

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Q: Which of the following is NOT a chemical reaction? Select one: O a. Decomposition of the protein ser...

A: A chemical change in the process in which a new compound is formed which shows completely different ...

Q: A sample containing a mixture of SrCl, · 6 H,0 (MW = 266.62 g/mol) and CsCl (MW = 168.36 g/mol) orig...

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Q: TMS TMS LicI DMSO, H20 Me., Me., Me Me Ме CO,Me Ме

A: In organic chemistry decarbomethoxylation reaction are those in which CO2 and Methyl group eliminate...

Q: A 30. Use the molecular orbital diagram to figure out the electr configuration for N2. The bond orde...

A: Given:-

Q: Label the following pair of alkenes as stereoisomers, constitutional isomers, or identical. Select t...

A: In the given compound, a pair of alkenes has the same molecular formula but the connectivity of the ...

Q: Energy A 30. Use the molecular orbital diagram to figure out the electronic configuration for N2. Th...

A: We have to use molecular orbital diagram to solve this problem

Q: For the balanced chemical reaction 4Al + 3O2 → 2Al2O3 how many grams of Al2O3 can be made by react...

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Q: Use numbers to order the substances by decreasing strength of intermolecular forces. Let #1 be the s...

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Q: 4Al + 3O2 → 2Al2O3 how many grams of Al2O3 can be made by reacting 0.321 moles of Al? Express your ...

A: The given chemical reaction is as follows: 4Al + 3O2 → 2Al2O3 The moles of Al given = 0.321 mol The ...

Q: Which of the following is the product for the given reaction? HNO3 ? H2SO4

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Q: y as AS V

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Q: In lab two dikferent mobile phase compositions were used for column Chromatoghaphy. DiSCUSShow the h...

A: The solution of the answer is given below:

Q: A substituent needs to be added to the reactant to allow the following reaction to occur. Which of t...

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Q: C. Draw the chemical structure for each of the following: Ex. 2,3-dimethylpentane CH3 CH3 CH-CH-CH-C...

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Q: A patient's cardiac output is measured using the Fick's method. The spirometer measures an oxygen co...

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Q: Determine the value of K, for this reaction at the same temperature. The gas constant, Ris 0.0821 L ...

A: Given, Kp = 41.0 at 400K Gas constant, R = 0.0821 L.atm.mol-1.K-1. Temperature, T = 400K

Q: Give the balanced chemical equation of a complete (saturated) hydrogenation of 1-butyne.

A: hydrogenation of 1-butyne.  

Q: A buffer is prepared by mixing 0.15 M NazHPO4 and 0.10 M NaH, PO4. K, for H3PO4 = 7.5 103 %3D Ka for...

A: The PH of buffer can be calculated as

Q: 6. Answer the following questions involving organic synthesis:

A:   a. Alkene upon dehydrogenation with Pd-C / heat gives an alkyne   (or) first chlorination of alken...

Q: How many grams of sorbitol solution having a specific gravity of 1.335 should be used to prepare 110...

A: Specific gravity is the ratio between the density of a compound in the given solution to the density...

Q: Which reagent(s) and/or condition(s) are needed for positions 1 and 2? 1. OH 2. Br Br

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Q: A solution is titrated with AGNO, to determine the CI- concentration. At the endpoint is a colloidal...

A: As precipitate of AgCl forms it preferentially absorbs Ag+  ions and develops positive charge on sur...

Q: please explain along the answer. rate K2CR2O7 H2SO4 / H2O heptanal

A: Reaction of heptanal with K2Cr2O7 in presence of H2SO4 / H2O

Q: A chemist measures the amount of hydrogen gas produced during an experiment. She finds that 90.8 g o...

A: Given :- mass of H2 gas = 90.8 g  To be calculated :- no. of moles of H2

Q: The percent by mass of acetonitrile (MM = 41.05 g/mol) in an aqueous solution is 11.5%. What is the ...

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Q: Click the "draw structure" button to launch the drawing utility. Using curved arrow notation, draw a...

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Q: Why is agron the smallest than the other elements in period 3?

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Q: 6. How many signals on a 'H NMR spectrum would be predicted for the following compounds, which compo...

A: Each Chemically non-equivalent protons gives a signal. All equivalent protons gives only one signal....

Q: At a certain temperature the vapor pressure of pure benzene (C,H) is measured to be 0.44 atm. Suppos...

A: Given data: Mass of benzene = 137 g Mass of heptane = 131 g  Vapor pressure of pure benzene = 0.44 a...

Q: Select the false statement that describes the following Maxwell-Boltzmann graph. T2 Kinetic energy E...

A: For a chemical reaction, the rate of reaction increases as we increase the temperature of the reacta...

Q: 5. Consider equal amount of wood and glass. Assuming that equal amount of heat is absorbed by these ...

A: Heat capacity is the amount of heat required by one gram of a substance to increase its temperature ...

Q: What is the molecular formula and what is the molecule

A: The solution is given below - 

Q: Determine the position that is most likely to be the site of an EAS reaction in the compound below (...

A: The electrophile aromatic substitution reaction takes place on that benzene ring which has high elec...

Q: At room temperature, an increase in the number of moles of gas as the reaction goes from reactants t...

A: Number of moles of gas increases when reaction goes from reactant to product....

Q: 125 mL of 0.3 M HC1 was mixed with 320 mL of 0.15 M NaF. What is the pH of the solution after mixing...

A: Given data : Concentration of HCl = 0.3 M Volume of HCl = 125 mL Concentration of NaF = 0.15 M Volum...

Q: Twhat would be the order of elution I f H 3-nitrotoluicacid, 2-naphthol, and l,4-dimethoxgbenzene Wi...

A: Chromatography is a physical method of separation in which the components of a mixture are partition...

Q: The Fajans titration uses an adsorption indicator to detect the endpoint of a titration in which a p...

A: 1. An anionic dye binds to the positive surface of the precipitate. In this particular reaction.

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used t...

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Q: QUESTION 7 0.9699 moles of NaOH and 24.93 mL of the same NaOH solution are used during a titration. ...

A: Since you have posted multiple questions so I am solving first one for you.if you want to be solved ...

Q: At a certain temperature the vapor pressure of pure water is measured to be 246. mmHg. Suppose a sol...

A: Vapour pressure of pure water = 246 mmHg  Mass of water = 120 g  Mass of acetone = 93.5 g

Q: Name the highlighted chemical group in each molecule. Lewis structure name of highlighted group н н ...

A: The name of the functional group is given below

Q: The concentration of C gas in the following reaction increases from 6.85x10-3 mol/L to 8.75x10-3 mol...

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Q: Calcium carbonate decomposes on heating as shown in the chemical equation. When 50 g of calcium carb...

A: Recall the equation %yield = (Experimental yield/Theoretical yield)×100

Q: For the balanced chemical reaction C3H8 + 5O2 → 3CO2 + 4H2O how many moles of O2 are needed to mak...

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Q: Silver chloride has Ksp = 1.8 × 10−10. What is its molar solubility in water?   a. 9.5 × 10−6 M  ...

A: Given data is as follows: The solubility product of silver chloride Ksp=1.8×10-10 The molar solubili...

Q: How many of the following species are stabilized by resonance? O 2 O 1 O 4 O 3

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.