4. Characteristics of Living Things.

Q: was S18 less than How much did the backpack cost?

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Q: 7. Identify the acid and the base (for the forward direction) in each of the following reactions:…

A: Answer: Reactant that donate proton  in a chemical reaction is called as an acid in that reaction…

Q: Please answer the last three question (c, d and e). The answers are: (c) 3.63 × 10^9 events (d)…

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Q: 9. A hot air balloon has a volume of 3.21 x 10° L. It is filled with CO, and H,O gas when propane is…

A: “Since you have asked multiple questions with multiple sub parts, we will solve the first question…

Q: 4. Show by suitable net ionic equations that each of the following species can act as a…

A: It is based on the concept of acid-base reaction.Here we are required to find the net ionic equation…

Q: 8. What is the acid form of: + a. NH3 b. HCO3 HCO3 c. H₂0 H30

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Q: How does this chemical reaction causes the fireworks to operate. 6KNO3 + C7H4O + 2S -------->…

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Q: what is the purpose of these materials in a eudiometer setup experiment deionized water small piece…

A: A question based on properties of a gas that is to be accomplished.

Q: A 250-mL flask COL water is 378.26 g, wl 17 い5、 388.86 119,28 258.9- 258.9 What is the volum 286.7 K…

A: At standard temperature and pressure, a system is said to have a temperature of 0°C or 273.15 K and…

Q: Identify the conjugate acid in the following chemical reaction? NH3 + HCO,- NHA+ CO,2 1) None of…

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Q: Question 4 is needed to answer question 5. I had provided the answers for question 4. I just…

A: Steps to write net ionicequation is  1) First write the balanced equation 2) Write total ionic…

Q: Which elements and properties did Mendeleev examine when he predicted the properties of eka-aluminum…

A: In Mendeleev’s periodic table elements are arranged in the increasing order of their atomic mass.…

Q: 4. Write Lewis structures for the following molecular formulas, and encircle any lone pairs (pairs…

A: We have to draw  the lewis structure of following  given molecules,  And also we have to determine…

Q: 4. Compare the total mass of the reactants with the total mass of the products: Total Mass of the…

A: Given reaction is,  K2CrO4 (aq) + Pb(NO3)2 (aq) →2KNO3 (aq) + PbCrO4 (s)

Q: 3. Which process occurs in an operating voltaic cell? (1) Electrical energy is converted to chemical…

A: 1. Electrolytic cell is just reverse of voltic cell. 2. In voltic cell anode is negative and cathode…

Q: Class Catalyst (Completed individually without talking) Quick Review: Complete the following table.…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Magnesium, Mg Strontium, Sr Barium, Ba E Radium, Ra :::: :::

A: We know that on going left to right atomic radii decrease and on going from top to bottom atomic…

Q: (c) NO2 NH2 (CH3CO)20 pyridine HNO3 H2SO4 & heat NH2 O2N Br NH2 (d) NO2 3 H2 Ni catalyst А Br Br (e)

A: Stepwise synthesis is given below

Q: A 10.61 gram sample of a certain hydrate of copper (II) sulfate, is heated until all the water is…

A: The question is best on experimental technique of determination of molecular formula of the hydrate.…

Q: I need a step by step explanation for solving these problems.

A: These problems can be solved by this method:

Q: Show all your work on a sheet of paper to solve the following significant figures. You can earn…

A: 6.02*1023 atoms = 1 mole  4.75* 1024 atoms = 7.89 mole of Ar

Q: If you started with 7.25 bsh, how many bgt is equal to this?

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Q: A buffer solution contains 0.301 M hydrofluoric acid and 0.210 M sodium fluoride. If 0.0302 moles of…

A: When a weak acid and its salt are present in a solution,they form a buffer solution.The pH of…

Q: Molecular Formula: C4H₂N2O4 TEST/REAGENT(S) Br₂, dark [Ag(NH3)2) NO3 2,4-DNPH Test ZnCl₂, HCI…

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Q: 8A 1A H 2A 3A 4A SA 6A 7A He Lu Be BCNOF Ne Na Mg 38 48 5B 6B 78 r BB 18 28 AI si PSCI Ar K Ca Sc TI…

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Q: If the de Broglie wavelength of an electron is 1.07 nm, what is its velocity? The mass of an…

A: Answer: To find out the velocity of electron we will use the De-Broglie equation that gives us…

Q: Part A What is a combustion reaction? Why are combustion reactions important? Match the items in the…

A: Combustion reaction is a chemical process between substance and oxygen which leads to transfer of…

Q: 8. Oxygen (O_): Involved in respiration Lewis Diagram for O Lewis Model of O, Explain how the…

A: "Since you have asked multiple questions, we will solve the first question for you (as per our…

Q: Name Condensed otruchire Line diagram or structural formula Type of compound 1-methoxybutane…

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Q: I measure out 15.98 g of potassium chloride and dissolve it in water. The total volume of solution…

A: Given, amount of KCl =15.98 gvolume of solution =500.0 mL =0.5 Lmolar mass of KCl =74.55 g/molwe are…

Q: Problem No.3 1. Write the reaction of lithium with cold water. Write the reaction of magnesium with…

A: Given  1)  Reactant = Lithium and Cold water       Reaction = ?  2) Reactant  = Magnesium and steam…

Q: Order the following from smallest to largest 1 Tin, Sn ! Germanium, Ge 3 Silicon, Si 4 Carbon, C 2.

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Q: In a solution with OH- concentration of 3.0x10^-5 Match the following values that correspond to the…

A: The pH is a scale that is widely used to measure the acidity or basicity of a solution. The pH is…

Q: 24. A radioactive substance weighing 18.00 grams undergoes radioactive decay in 12.5 days and has…

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Q: X,Z, → a x Xk+ + b x Zm- Ionic compound charge (oxidation) N Molecular no Is X a metal or no yes is…

A: let us try to fill the remaining 3 blanks.

Q: .mheducation.com/ext/map/ part 2 Homework i 04 es Saved Determine the freezing point of an aqueous…

A: Introduction :  Depression in freezing point is a colligative property of of dilute solutions…

Q: Barium becomes a(n) A. cation, Ba+2 B. cation, Ba² C. D. anion, Ba+2 anion, Ba-² when it loses two…

A: After loosing two electron barium become cation and will form Ba+2

Q: lonic compound Metal Number of cation nonmetal number of anion total total charge = 0 valence…

A: Ionic compounds are formed with the help of cation and anion. The ionic charge is generally balanced…

Q: Complete part 2 of the question (I already did part 1) as explained in the image.

A: This will be the product of Michael addition in a stork enamine synthesis

Q: Data Table 1: Calcium hydroxide pH 11.09 10.95 11.16 11.06 Trial Number Trial 1 Trial 2 Trial 3…

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Q: 7. Calculate the pH of 0.10M Ammonia (NH3) Repeat the calculation after addition of 25 mL of 0.1M…

A: The equilibrium reaction of ammonia in an aqueous solution is given as  NH3 + H2O ⇌NH4+ + OH- The…

Q: Which statement about detecting temperature is TRUE?   Nociceptors detect small changes in…

A: Incorrect options are : 1.)    Nociceptors detect small changes in temperature.    Reason :it…

Q: Can you help me step by step with number 9 part A, part B, part C? Can you explain it to me?

A: Base : It is the substance which can accept a hydrogen ion , and is able to neutralise acid or…