The pH of an acidic solution is 5.67. What is [OH⁻]?

Q: 1. A 0.0250 M Ca(X)2 has a pH of 8.049. Ca(X)2 is composed of a Ca²+ cation and an unknown anion X,…

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Q: 6. answer correctly or I will leave negative remarks.

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Q: In Sections 1-7 and 1-9, we considered the electronic structure of [CH₂NH₂]. Predict its…

A: we have to determine the geometry, hybridization and bond angle

Q: Dinitrogen pentaoxide, N₂O5, decomposes to nitrogen dioxide, NO2 and oxygen, O₂ as shown in the…

A: Rate of a reaction is proportional to the concentration of reactant raised to some powers which may…

Q: Calcium phosphate (Ca3(PO4)2; MM = 310.18 g/mol), a large component of human bones and teeth, has a…

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Q: You prepare a solution of protein and its ligand where the initial concentrations are [Protein] = 10…

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Q: Assessment Directions: Write the letter of the CORRECT answer on a separate sheet of paper. 1. Which…

A: As per our guidelines, we are supposed to answer only one question with three sub parts. Kindly…

Q: Dinitrogen pentaoxide, N₂O5, decomposes to nitrogen dioxide, NO2 and oxygen, O₂ as shown in the…

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Q: 11. Write the equilibrium expression for the reaction 2 SO 2 (g) + O2 (g)* 12. Write the equilibrium…

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Q: Suppose a sequence of enzymatically catalyzed reactions converts substrate A to final product D…

A: As substrate A is added to the mixture the enzyme E1 covert to the intermediate B . So, the…

Q: Enzymes are * O(a) Proteins O (b) Carbohydrates O (c) Nucleic acids O (d) DNA molecules

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Q: 3. Consider the HNO2-KNO2 buffer system, which species would react if a dilute aqueous KOH solution…

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Q: Graph the heating curve of ethanol using the information given. Check off each box as you add…

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Q: 400.0 mL of a 0.345 M solution of NaCl is diluted to 900.0 mL. What is the new concentration of the…

A: The correct answer is given below

Q: Strontium-89 chloride is in a class of drugs known as radioisotopes. It delivers radiation to cancer…

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Q: Question 26 How many resonance structure(s) is/are present in the conjugate base of the molecule…

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Q: Our atmosphere is made up of 78% N2, 21% O2, and 1% other gases. What is the partial pressure of N2…

A: We use the formula below to find the partial pressure of a gas in a gas mixture.  Partial pressure…

Q: TASK 2: BALANCING! Balance the following redox reactions by the oxidation number method and…

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Q: 2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X.…

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Q: Calcium phosphate (Ca3(PO4)2; MM = 310.18 g/mol), a large component of human bones and teeth, has a…

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Q: What pressure (in atm) is exerted by a column of toluene (C7H8) 87.0 m high? The density of toluene…

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Q: 1. 3. 4. 5. 1. 3. 4. 5. 1. 2. 3. 4. 5. 1. 2. 3. 4. 5. CARBOHYDRATES LIPIDS PROTEIN NUCLEIC ACID

A: Carbohydrate,lipid,protein and nucleic acid are the biomolecules responsible for for the various…

Q: 9. Given that Agl would precipitate first than AgCl in a solution containing equimolar…

A: Chemical equilibrium is defined as the stage at which both reactant and product are in equilibrium.

Q: Сalculate ∆H° for the reaction: N2O(g) + 1/2 O2(g) → 2NO(g)

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Q: 14. Write the equilibrium expression for the following reaction ZnCO3(s) ZnO (s) + CO₂ G

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Sucrose consists of " Glucose + glucose Glucose + mannose Glucose + galactose Glucose + fructose

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Q: COMPARING THE CENTIMETER TO INCH

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Q: Urea, (NH₂)₂CO is used as a fertilizer. What is the molar concentration & percent concentration by…

A: From the molality (molal) and density of solution we can figure out Molarity (molar) and percent by…

Q: In order to carbonate beverages, they are pressurized with at least 3.75 atm of CO2 at 25 °C. What…

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Q: 9. A city's water supply is fluoridated by adding NaF. The desired concentration of F is 1.6 ppm.…

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Q: 1. Write the product, side products and the mechanism for reaction. Write the names of starting…

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Q: Directions: Give common examples for each of the following. Write your answerona separate sheet of…

A: Type                                            Example…

Q: Question 1 Calculate the APF for the bcc metal structure.

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: After preparing the buffer, Phoebe decided to determine the buffer capacity of the solution by…

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Q: PH a. What type of polyprotic acid is this (how many acidic protons)? Explain why. b. Clearly label…

A: The given plot is:

Q: A solution of hexane, C6H14, in benzene, C6H6, has a molality of 0.250 m. What mass of hexane is…

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Q: The mass of metal deposited by the electrolysis of an aqueous solution of metal ions increases in…

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Q: 2. Identify the "order" and "type" of the following halides of carbons that are sp3 hybridized.. Are…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Directions Balance the following cher Example: 2Na+ Cl₂ → 2NaCl Na 1 x 2 = 2 Na CI Cl- 2 ➜ 1. Cl₂ +…

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Q: Calculate percent composition from a compound formula. Determine the percent composition of each…

A: Given compound: K2CO3 We have to determine the percent composition of each element in K2CO3.

Q: CaBr2 + KOH  -> Ca(OH)2 + KBr        How many grams of CaBr2 is consumed when 96g of Ca(OH)2 is…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: nitrogen gasa t 0.4 MPa and 300 K. If the electric resistance is used to heat the cylinder by…

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Q: 4. a)Nucleophiles. Define a "nucleophile" in organic chemistry? b) Identifying nucleophiles.…

A: Acid can be defined as the species that can give hydrogen ions in an aqueous solution.

Q: 22. A solution of sodium sulfide reacts with 200. mL of 3.75 M HCl to form a solution of sodium…

A: Given, Concentration of HCl solution = 3.75 M = 3.75 mol/L Volume of HCl solution = 200. mL = 0.2 L…

Q: Why were phenolphthalein chosen to be the indicator? What can other possible indicators substitute…

A: Hey there! Phenolphthalein show colour change at a pH above 7. So it acts as a good indicator for…

Q: 2. Phoebe was tasked to ensure that an enzyme responsible for keeping her species from extinction…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: SOLUBILITY PRODUCT PRINCIPLE Calcium phosphate (Ca3(PO4)2; MM = 310.18 g/mol), a large component of…

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for…

Q: From the equation below, determine half reaction for anode and cathode. Ca (s) | Ca2+ (aq) || Cd2+…

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Q: Which of the following is not a correct mass of one sodium atom? a) 23 amu b) 23 g c) 3.82x10-23 kg…

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Q: estion 17 Which acid below will be almost completely deprotonated by NaOH? a. all of the choices O…

A: Kindly get the answer 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.