Natural cycle.  Answer the following question.   1. How does human activites influence phosphate cycle?   2. What is carbon sequestration?   3. Explain the essential steps in sulphur cycle.

Q: Σ *00 Given the information A +B 2D AH° = .HV 793.7 kJ AH° = 424.0 kJ AS = 293.0 J/K %3D AS = -214.O...

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the st...

A:

Q: Calculate the pH of a sample of rainwater if it is left to equilibrate with 2.0 ppmv of SO2 (KH = 1....

A:

Q: 2. Given the molar solubility, calculate the K, for the following salts. a. s= 1.14 x 10-7 M for Ca,...

A:

Q: Consider a voltaic cell comprised of Zn/Zn2* at one electrode and Fe2*/Fe3+ at the other electrode a...

A: A voltaic cell is electrochemical cell where we see a conversion from electrical energy  to chemical...

Q: Draw the structure corresponding to the name.   3,4−dibromobenzoic acid

A: For the structure, there is carboxylic group on 1st carbon. There is bromo group in 3rd and 4th carb...

Q: Match the state function to its corresponding heat of reaction: A: delta E B: delta H A: qv or qp? B...

A:

Q: What is the solubility of La(IO₃)₃ in a solution that contains 0.500 M La³⁺ ions? (Ksp of La(IO₃)₃ i...

A:

Q: Draw the alpha and beta anomer for D- Glucose

A:

Q: If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the wa...

A:

Q: thanol, benzaldehyde and KMnO4 is mixed together. Would you expect a precipitate to form based on th...

A:

Q: The value of AH° for the reaction below is -126 kJ. The enthalpy change accompanying the reaction of...

A:

Q: Technetium-99m, an important radionuclide in medicine, has a half-life of 6.0 hours. What percentage...

A:

Q: When 1.96 g of NaCl are added to 111 g of water in a constant pressure calorimeter , the temp of sol...

A:

Q: Identify the incorrect statement: a) Alpha and beta particles pose little or no hazard to human heal...

A:

Q: pick the substance and conditions which should have the higher entropy. a)water at 0K b) water at 0C

A: a)water at 0K b) water at 0C

Q: As the separation away from a radioactive sample increases, the intensity of the radiation also incr...

A: According to an inverse square law says that intensity of radioactive radiation is inversely proport...

Q: m cm - 4.2 × 10° х 10' ? S

A: For unit conversion, 1 m = 100 cm = 102 cm ( -4.2 × 105 ms) . 102  cm =  -4.2 × 107 cms

Q: 3. Ferric Chloride Test 4. Bromine test

A: These are some primary test to identify different functional groups. These tests can performed in la...

Q: At 1 atm, how much energy is required to heat 49.0 g H,O(s) at –10.0 °C to H,O(g) at 149.0 °C?

A: total heat  produced is equal to the sum of heat produced in each step of heating

Q: Significant the IR peaks observed in each fraction? First image fraction #1 Second image fraction #2

A: A question based on IR spectrum, which is to be accomplished.

Q: 33. The oxidation of phosphine (PH3) to phosphorus pentoxide (P2Os) is given by the chemical equatio...

A: n(moles) = mass÷ molar mass  We have to find the number of moles of O2 reacting completely with PH3 ...

Q: Calculate the molar solubility of Cr(OH)3 in 0.50M NaOH; Kf for [Cr(OH)4]- is 8 x 10^29.

A:

Q: Air conditioners dry the air while they cool the air. Suppose an air conditioner is used to cool a r...

A: Given: Dimensions of room =7.06 m×10.94 m×2.67 m Temperature = 37 ∘C The vapor pressure of water = 4...

Q: K2s2o3 + 4cl2 + h2o = 2khso4 + 8hcl Calculate how many grams of hack (molar mass = 136.17 mol/g is p...

A: Here we have to calculate how many grams of hack is produced-

Q: list three characteristics that you would need to verify in order to determine that a chemical syste...

A:

Q: element Mg.

A:

Q: Silver ions reacts with excess CN- to form a colorless complex ion, [Ag(CN)2)-, which has a formatio...

A: Each AgNO3 has 1 Ag+(aq) and each NaCN has 1 CN-(aq). Since we have added an equal volume of 0.0020M...

Q: Potassium-42 is used to locate brain tumors. Its half-life is 12.5 hours. Starting with 15.4 mg, wha...

A:  Given, half life of K-42 = 12.5 hr Initial amount of K-42 = 15.4 mg    To know what fraction will r...

Q: calculate the Keq of a reaction that has a DeltaG of 8.8 kJ/mol at 25C.

A: Given delta G = 8.8kj/mole  1kj = 1000 joules 8.8 kj = 8.8 × 1000= 8800 joules  Formula used  Delta ...

Q: Aluminum Chloride is a strong Lewis base TRUE O FALSE Toluene is denser than water * O TRUE O FALSE

A: 1. Aluminium chloride is a strong lewis base : False 2. Toluene is denser than water : False 3. An a...

Q: pH for a weak base'strong acid titration. Determine the pH during the titration of 37.6 ml. of 0.319...

A:

Q: Complete the following reaction equations by supplying the formula of the missing reactant or produc...

A:

Q: Cholesterol is one of the important components of the animal cell membrane. Label the circled chiral...

A:

Q: (CH,(CH,),CH;) * CH3) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) an...

A: The question is about calculating the theoretical yield of Water when 1.2 g of Gaseous Butane reacts...

Q: Consider the below redox reaction. 2 Hg2* (aq) + N2H4 (aq) → 2 Hg (I) + N2 (g) + 4 H* (aq) What is b...

A:

Q: A combustion reaction involving 250 grams of Butanol C4H9OH with Molar Mass of 74.1216 g/mol is to t...

A:

Q: A mole of a newly discovered crystalline substance weighs 14.56 grams and displaces 2.3 mL of water....

A:

Q: balloon filled with air at sea level has a volume of 2.00 L at a pressure of 760 mmhg and a temperat...

A:

Q: write the equilibrium constant expression of the following reaction

A:                             Answer  write the equilibrium constant expression of the following react...

Q: Natural Cycle. Answer the following question.   1. Where do living organsims gets nitrogen? 2. W...

A: Living organism get nitrogen from the plants as plant get nitrogen from the soil through thier roots...

Q: Resonance structure A Resonance structure B Select Draw Rings More Erase Select Draw Rings More Eras...

A:

Q: 3. Determine the amount, in of a (2.20 M s olution of dichloromethane needed to completely react wit...

A: Given:  Bromine(Br2) reacts with Cyclohexene to give 1,2-dibromocyclohexane.

Q: Write the formula for each of the following compounds: (a) tetraamminedibromoruthenium(III) nitrate ...

A: Note: Since as per our guidelines, we are supposed to answer only the first three subparts, kindly r...

Q: 1. Liquid water is its densest (1 g/mL) at 4 degrees Celsius. Calculate the density of water in g/mL...

A: Interpretation -  To calculate the density of water in g/mL at 4oC and 1atm , when liquid water is d...

Q: Identify the reactant that gets oxidized in the following reaction. 2 AgNO₃(aq) + CaI₂(aq) → 2 AgI(...

A: Identify the reactant that gets oxidized in the following reaction. 2 AgNO₃(aq) + CaI₂(aq) → 2 AgI(s...

Q: Fill in blanks with appropriate words: Blank 1- a system becomes no change, warmer or cooler? Blank ...

A:

Q: Draw the sawhorse projection of most stable conformer of 1-isopropyl-3-methycyclohexane

A: For drawing the stable chair conformation in substituted cyclohexane always keep the bulky groups on...

Q: ion by supp

A: In nuclear reaction, atomic number and mass number is balanced

Q: How many moles of ammonia would be required to react exactly with 0.468 moles of copper(II) oxide in...

A: