Determine the density of a metal weighing 342.0g that displaces 10.5ml of water when placed in a graduated cylinder.

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Q: Translate the given theoretical conformer from the Newman projection to its wedge‑and‑dash drawing.

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Q: Why is there a need to adjust the acid concentration of Group II cations before saturation with H2S?

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Q: What is chromophore and pigment? Provide website link of reference

A: Bioinorganic chemistry is branch of chemistry in which we study the chemical reaction in biology.

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Q: Structure (Skeleton) HO H₂C- H₂C CH3 CH3 CH CH3 ECH CH3 CH3 Table 3: Naming Alkynes No. of Carbon…

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Q: How many Si atoms are there in a 63.4 gram sample of elemental Si? atoms

A: Given the mass of the Si sample = 63.4 g  We have to find the number of Si atoms.  We can proceed…

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Q: When Taylor was on a diet, they were losing 1.92kg per week. Taylor lost a total of 9.53lb. How many…

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Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N₂] [H₂]…

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Q: 3. If the flask was not thoroughly wiped dry, how would this affect the molar mass?

A: Flask is an apparatus used in chemistry laboratory for doing experiments of chemistry.

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Q: Question 2 In the second stage of the industrial production of nitric acid, nitrogen monoxide…

A: The balanced chemical reaction in equilibrium is: 2NO(g) + O2(g) ⇌ 2NO2(g) + Heat(Exothermic); Kp =…

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Q: 13. Draw the atoms, showing how they are connected in H₂ so that the 2 hydrogens each form 1 bond?…

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Q: Consider a hypothetical chemical reaction: A+B C+D (In this equation A, B, C and D stand for some…

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Q: C. The lead(II) oxide was weighed before and after the additions. d. - 19 18 17 16 before 9 15 ii.…

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Q: A tiny sample of gold contains  1.5 x 10^16 atoms. The mass of the gold sample is ______  μg.

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Q: What is meant by the first compound notation?

A: In chemistry, a compound - is a substance that is made up of two & more diverse chemical…

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Q: 1. Give the correct IUPAC names for the following compounds: 1.1. 1.2. 1.3. (2) (2) (2)

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Q: p.101edu.co Question 27 of 30 What amount of heat (in kJ) is required to convert 27.5 g of an…

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Q: A)I,ii and b)I and ii

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Q: How many atoms are contained in 0.98 moles of iron (Fe)?

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Q: Express (91 g) / (49 g) as a percentage with correct significant figures SHOW WORK BELOW!

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A: Given: Mass of X = 1 g Molar mass of X = 40 g/mol

Q: QUESTION 30 What compound decreases in solubility as the temperature of the solution is increased…

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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.