Which of the following substances can be separated into simpler substances only by chemical means? Select one: a. gold b. water c. sodium d. saltwater   give reason also

Q: 1. Given the following chromatogram, mark the middle of each cation spot and calculate the Ry value…

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Q: An analyst was measuring the performance of a HPLC column. The test solute was Toluene (5 µL). The…

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A: A chemical bond in a covalent molecule is formed by the sharing of electron pair between two atoms.…

Q: If the percent yield is determined to be at 90%, what is the actual amount of CO2 (in grams)…

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Q: Question 1 (a) Below is the Fischer projection of D-deoxyribose. i) 'CHO H²-H H-3-OH H-OH CH₂OH…

A: L and D forms are mirror images to each other and thus are called enantiomers. Let us discuss the…

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Q: Methanol isobutene If 45.0 kg of methanol are allowed to react with 70.okg of isobutene, what is the…

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Q: Acid A with ka 3.5 x 10-5 is more acidic than acid B with ka 6.5 x 10-6

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Q: Me2NH, CH,O HCI Me Me

A: The given reaction is an example of Munnich reaction in which, the α-proton of ketone undergoes…

Q: Use molecular orbital theory to explain the following data (everything must be explicit): Bond…

A: No. of electrons in O2 = 16 electrons No. of electrons in O2+ = 15 electrons No. of electrons in N2…

Q: A 0.20-g sample of a purified protein is dissolved in water to give 2.0 mL of solution. The osmotic…

A: Molarity of solution is defined as number of moles of solute dissolved per litre of solution. We…

Q: What is the angle between two of the carbon-hydrogen bonds in the methane (CH4) molecule? 0° X S

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Q: What is procedure in extraction of beta-carotene from carrot.

A: We have to write the procedure for extraction of beta carotene from carrot.

Q: How many molecules of O₂ are produced when 40.3 g of KCIO, decomposes as shown in the reaction? 2…

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Q: Gentamicin sulfate is a water-soluble antibiotic that is used to treat a variety of bacteria,…

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Q: If 12.3 g of Cu is deposited at the cathode of an electrolytic cell after 5.50 h, what was the…

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Q: 'H NMR spectrum (300 MHz, in CDCI) (quartet, H) 4 80 0 ppm "C NMR spectrum (75 MHz in CDC13) 0 ppm…

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Q: The normal boiling point of water is 100.0 °C and its molar enthalpy of vaporisation is 40.67…

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Q: Consider the reaction: P(s) + 5/2Cl₂ (g) → PC15 (9) Write the equilibrium constant for this reaction…

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Q: соон CH3 + CH₂Cl CH3 + ON کرون H₂NNH -NO₂ H₂ SOY -NO₂- alcohol >

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Q: + 2,4-Dinitrophenylhydrazine ->?

A: Ammonia or ammonia derivative reacts with carbonyl compounds to give addition products.

Q: The pka values of a weak acid is directly proportional to basicity. O True O False

A: The given statement is True. It can be explained as below:

Q: mechanisms of this reaction

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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: QUESTION 7 Bronze is a substitutional alloy, where tin atoms replace some copper atoms in the copper…

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Q: 5:33 m x 9.9629 x 10-³ m x 18.943 m CA CO

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Q: Chemical Formula NaNO3 SiO₂ Na₂CO3 10 H₂O KOH C6H₂(NO₂)3CH3 . Common Name Chemical Compounds/…

A: This can be solved by this way

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Q: Predict the chemical formula for the ionic compound formed by the elements Al and I

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Q: Hydrogen gas has a density of 0.0899 g/L at 0 °C. How many liters of hydrogen would you need if you…

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Q: For the compound below, locate the pattern we just learned (lone pair next to a n bond) and draw the…

A: Resonance structure: If the Lewis structure of a molecule or ion cannot explain by a single…

Q: 543.7 g + 568.45627 ml

A: We need to add two numbers with different significant figures.  In addition or subtraction of…

Q: la) Biliverdin is a pigment produced by tree frogs that causes them to look green - its structure in…

A: Given the pKa values of the two ionizable groups are: pKa1 = 3.9, and pKa2 = 5.3

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Q: Name the following ionic compounds: 1) V₂(SO4)3 2) Zn3P₂ 3) Sr(C₂H3O2)2 4)Cu₂0 Could you also please…

A: Name the following ionic compounds:   1) V2(SO 4)3   2) Zn 3P 2   3) Sr(C 2H3O2)2   4)Cu₂O

Q: 543.7 g + 568.45627 mL

A: The measurements to be added are: 543.7 g + 568.45627 mL

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.