"A metal with a mass of 107.1g was placed into a graduated cylinder and completely submerged. The water level went from 22.5mL to a volume of 36.1mL. What is denisity of the metal? round your answer to two decimal places omit trailing zeroes Given the following table what is the identity of the metal? metal Density Magnesium 1.74 Aluminium 2.70 Titanium 4.50 Zinc 7.14 Iron 7.86 Nickel 8.90 Copper 9.96 Lead 11.34 13.55 Mercury 19.32 Gold

Q: What is the pH of 10mL aliquot of toluic acid (with a concentration of .1837M) after 21.05 mL of…

A: In this question we apply the equilanece of the moles  Initial and the final moles are equal .

Q: 2. Name the following drugs and name their pharmacological groups. H3CO, N HCI H3CO Cl LOCH3 „CH3…

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Q: What is the pH of 10mL aliquot of toluic acid (with a concentration of .1837M) after 21.05 mL of…

A: Given that, 10 mL aliquot of toluic acid with concentration 0.1837M.after addition of21.05 mL of…

Q: Have eight valence electrons with the exception of helium.

A: In the periodic table, the elements that comes in the Group 18 has eight valence electrons except…

Q: Mass of Inner cup with stirrer on the digital balance=36.7 Mass of Inner cup with stirrer and warm…

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Q: Erythromycin is a weak base with a pka of= 5.2 What will be the ionisation state of the drug in…

A: Actually Erythromycin is a weak base with pKb = 5.2  Hence pKa = 14 - pKb = 14 - 5.2 = 8.8  The…

Q: CH3-CH2-CO-CH2-CH2-CO-CH3 + 2H2

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Q: A 60.0 g sample of water (CW) at 8.0°C is mixed with 80.0 g water (HW) at 58.0°C in a coffee cup…

A: Given that -  Mass of sample of water (CW), M1  = 60.0 g  Mass of water (HW) , M2 = 80.0 g…

Q: 2. How many stereoisomers exist for the following molecule? OH A. 2 B. 3 C. 4 D. 6 E 8 23 The…

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Q: What is the N and M of 100 g NaOH in 1.5 L of Solution ? (Na- 23, O -16, H-1)

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Q: Question 13 plate with an area of 50ocm? is to be coated with of gold o.01 cm thick. How long would…

A: Given: Plate area = 500 cm2 Thickness = 0.01 cm Density of Gold = 19.3 g/cm3 Current = 5.20 A

Q: What quantity of charge is required to reduce 27.2 g of CrCl 3 to chromium metal? (1 faraday =…

A: Calculate the number of moles in 27.2g CrCl3       reduction of 1mole CrCl3 requires 3 moles of…

Q: Refer to the portion of the periodic table below that shows the elements belonging to the same…

A: The electronic configuration of K which is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ And that of Cl which is 1s² 2s²…

Q: please explain the mechanisms for each step ( including electron movement, bonds breaking and…

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. View Correct Answer

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Q: Explain why effervescence is produced for some basic compounds when made to react with carboxylic…

A: Effervescence means forming of bubbles. Let's see why some basic compounds form effervescence, when…

Q: For 6 and 7, use the table of K, values compiled at 25 °C to answer the questions below: Acid HNO,…

A: This question is related to acid-base concept.  Acids are species which can lose a proton while…

Q: In an aqueous solution of sulfuric acid, the concentration is 9.11 mol% of acid. The density of the…

A: Given :  Mol % of H2SO4 solution = 9.11 %  Density = 1.2528 g /ml

Q: Given the reaction 2NH4NO3(s)+Ba(OH)2(s) => 2H2O) + 2NH3(g) + Ba(NO3)2(5), AHº°RXN = +196 kJ, and…

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Q: Queston 18 Consider the veutons shown. (A) + H2 CI Ha (B) t HCI el (C + H2 What in it? type of…

A: These reactions are an example of nucleophilic substitution reactions. The general type of the…

Q: At what temperature does this reaction changes its direction? Is the reaction exothermic or…

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Q: The acid dissociation constant K, of carbonic acid (H,CO,) is 4.5 × 10 '. a Calculate the pH of a…

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Q: The correct name for the molecule CH3CH2CH2CH2CH2CH2CH3 is ----

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Q: 1. A silver nitrate solution contains 14.77 g of primary standard AgNO3 in 1.00 L. What volume of…

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Q: The value of Ecell at 25°C for the cell shown below is +1.27 V. What is the value of E°cell? Cd(s) |…

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Q: Mass of Inner cup with stirrer on the digital balance=36.7 Mass of Inner cup with stirrer and warm…

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Q: Name the hydrocarbons drawn below. i. ii. ii. iv. V. vi. Br vii. viii.

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Q: For the following reaction at 25°c: 26, H, t 50,>400,12 H,0) Question 15 For the following reaction…

A: Here we are required to find the Gibbs free energy for the given oxidation reaction of ethyne

Q: A solution of Mno is electrolytically reduced to Mn3+. A current of 7.79 A is passed through the…

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Q: I. Draw the structure or give the systematic name of the following: CH CH;CHCH,CCHCH; ÓH ČH2CH3 2.…

A: Given,  Given IUPAC names of the given compounds = ?

Q: Question 12 What is the value for AG° at 25°C for the reaction + 2H, Se CS2 +3H2 given that the…

A: Equilibrium can be defined as the state of reaction at which rate of forward reaction become equal…

Q: 4. Here you titrate 100 mL of carbonic acid (H;CO) of unknown concentration with 0.01 M of potassium…

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Q: Solid sodium phosphate is slowly added to 150 mL of a 0.235 M lead(II) acetate solution until the…

A: Given :  Concentration of lead(II) acetate = 0.235 M  Volume of solution = 150 ml  Final…

Q: why liquids like mineral oil or acetone are not good at dissolving salts, or why mineral oil and…

A: This is because of the fact  that mineral oil are aprotic in nature

Q: Write structural formulas for the products formed when propanal reacts with each of the following…

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Q: A 8.00 L tank at 3.04 °C is filled with 7.02 g of sulfur tetrafluoride gas and 5.96 g of dinitrogen…

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Q: You are required to prepare a buffer (pH sodium propionate. The concentration of the propionate must…

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Q: benzoic acid + HNO3/H2SO4 phenol + H2SO4 + A ethylbenzene + Br2/FeBr3

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Q: A free electron moving in one-dimension was emitted from Zn metal surface after exposure to UV…

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Q: Assuming the molar solubility of Ba(OH)2 is 4.13x10-4 M, what is the solubility of Ba(OH)2 in g/L?

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Q: 1. Og 23. 2. H202 A. B. C. 애

A: In this question we have to tell the product of the reaction.

Q: 2. Name the following drugs and name their pharmacological groups. H3CO HC1 он H3CO CI H2C, LOCH3…

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Q: Consider a mass spectrometer used to separate the two isotopes hydrogen and deuterium. The isotope…

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Q: 3. Given the following AH° values, H2(g) + 202(g) → H20(1) H,O2(1) → H2(g) + O2(9) AH° = -285.8 kJ…

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Q: Enough of a volatile liquid is placed in a closed container to achieve a liquid-vapor equilibrium.…

A: Given statement is :  Options are :

Q: The vapor pressure of water at 20.0 ºC is 17.5 torr. At that temperature, what would be the vapor…

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Q: The iron content of a municipal water supply was determined by an atomic absorption procedure. The…

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Q: Can a redox reaction involve more than two substances and still be included in the overall reaction?

A: Redox reactions are reactions which involve the transfer of electrons from one species to another…

Q: The condensed structural formula for a wax is shown below. Type the condensed structural formulas…

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Q: than the entropy of amorphous solids. The entropy of crystalline solids is generally O higher O…

A: The correct answer is given below

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.