solution

Q: ΔH for an endothermic process is ________ while ΔH for an exothermic process is ________. Group of a...

A: ∆H means change in enthalpy It is the change in heat of a system  ∆H = Hproducts - Hreactants  

Q: Does a precipitate of La(IO3)3 form when 0.25 L of 1.0x10-3 M La(NO3)3 is mixed with 0.15 L of 1.0x1...

A: Given : Concentration of La(NO3)3 = 1.0 X 10-3 M Volume of La(NO3)3 solution = 0.25 L Concentration ...

Q: Chemistry Question

A: Answer to question 1 is as follows

Q: e partial pressure of H2

A: We know that partial pressure can be calculated as below : Ptotal = P1 + P2 + P3 +........ + Pn  for...

Q: Phenols are aromatic rings with an alcohol functional group attached directly to the ring. These com...

A: As given, Phenols are aromatic rings with an alcohol functional group attached directly to the ring.

Q: What’s the concentration of a solution that has 0.930 moles of blue copper (II) nitrate dissolved in...

A:

Q: how many grams of oxygen can be produced from 17.4g of lithium chlorate when it decomposes into lith...

A:

Q: 5. Predict the odor for the structure below: methyl salicylate (or the IUPAC name: Methyl 2-hydroxyb...

A: The answer for the (5) The methyl salicylate has the following properties 1. It is a colorless 2.  v...

Q: 1)  Based on position on the Periodic Table, what type of bond will be formed between Mg and  I ? Io...

A: A bond between two atoms with the electronegativity difference of >2 is considered to be ionic bo...

Q: A small crystal is added to a solution and it sinks to the bottom of the beaker. What can this tell ...

A: Option D would be the correct answer .

Q: 3. If you have 12 moles of a gas in a 60,000 Liter container at a temperature of 120°C, what would t...

A: Given: The number of moles(n)=12 moles The volume of the gas(V)=60,000 L The temperature of the gas(...

Q: Determine the specific volume of nitrogen gas at 10 MPa and 150 K based on e ideal-gas equation and ...

A: solution- Pressure of nitrogen gas = 10 MPa T = 150 K (a) The ideal gas equation -  V= RTP = (0.2968...

Q: I need help with these, please

A: For question 1 : option D would be the right answer . For question 2 : option A would be the right a...

Q: 2,2-Dimethylpropane The number of a chemically non-equivalent hydrogens is 1 H,C-CH,-CH-CH, b ČH, Th...

A:

Q: The emission of radiation is the radioisotopes losing energy. O True O False

A: Radioactive isotope, also called radioisotope, radionuclide, or radioactive nuclide, any of several ...

Q: 1) Which molecule contains a polar covalent bond?

A: Since both the atoms are same in N2, hence they have the same electronegativity. As a result, the sh...

Q: Which form of nuclear radiation has the greatest penetrating power?

A: Penetration power is the tendency of an element refers to its tendency to pass through a particular ...

Q: honzero potential ne H atom? electrostatic attraction between the nucleus and the electron electrost...

A: c is the correct ans

Q: Which of the following polysaccharides contain both alpha 1 → 4 and beta 1 → 4 linkages? a. amylose ...

A: b cellulose

Q: Please answer my question fast

A: The substitution reactions are those in which a group in a substrate is substituted by another group...

Q: Predict the products and balance: N_2 + Mg ->

A: Mg : Magnesium N2 : Nitrogen    

Q: - The volatility points of alkanes... .. (a) Increase with the number of carbon atoms in the chain (...

A: The answer is given as follows The alkanes are saturated hydrocarbon compounds that are non-polar in...

Q: 22. Write a reaction that corresponds to the Suppose a 50.0 g block of silver (specific heat = 0.235...

A: The question is based on the law of conservation of energy. whatever heat lost by hot silver metal w...

Q: It is calculated that our dally contribution to the volume of CO2 in the atmos sphere is ,under norm...

A: Given :- mass of CO2 =1100 g  To calculate :- number of moles of CO2

Q: One person consumes 4 liter.of oxygen (CO2) per minute when breathing how Many grams would that be p...

A: Given :- volume of O2 consumes in 1 minute = 4 L  To calculate :- mass of O2 consumes in 1 hour

Q: 1. Balance and classify each of the following reactions by its type. Classification H2S (g) + _O2 (g...

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you ar...

Q: Solve plz

A: Given : The dimensions of cube = 1.25 ft X 0.25 ft X 12.00 ft The volume of rectangular cube = 1.25 ...

Q: Why is the water solubility of a carboxylate salt greater than that of its parent carboxylic acid? ...

A: RCOOH - carboxylic acid  RCOONa = sodium salt of carboxylic acid or carboxylate salts.

Q: Which of these nonrenewable resources does not use a turbine for generating electricity? solar O win...

A: Renewable resource - It can be used repeatedly and replaced naturally. Renewable energy almost never...

Q: When are the α and β forms not interconvertible?

A: Ribose: It is a pentose sugar that is present in living organisms. The two forms of pentose sugar th...

Q: In the reaction, 2KClO3(s)⟶2KCl(s)+3O2(g) what mass of potassium chlorate, KClO3, would be required ...

A:

Q: What is van't Hoff's formula ?

A: The Van't HOff equation at STP will look like ddT ln Keq = ΔHRT2 At T1 the equilibrium constant will...

Q: H.W: For a hydrogen atom, determine the allowed states corresponding to the principal quantum number...

A: The principle Quantum number(n) denotes the main energy level of the atom. The orbital quantum numbe...

Q: Please answer my question fast

A: Reaction will be- CH4​+Cl2​→CH3​Cl+HCl But in presence of excess of chlorine then reaction will not ...

Q: 7. Strong base is added to the following structure/solution until the reaction is complete. Predict ...

A: When acid reacts with strong base neutralization reaction takes place.

Q: copper reacts with silver nitrate. if 5.5 moles of copper are used to react, how many moles of silve...

A: The reaction of copper with silver nitrate is given as ,  2AgNO3 + Cu ------>  Cu(NO3)2  + 2 Ag .

Q: Mass-Mass Calculations 30) How many grams of chromium (III) chloride are required to pro- duce 75.0 ...

A:

Q: Q3. Aqueous solution of potassium permanent is prepared by (0.0001 M). Then, the spectrophotometric ...

A: Given: Concentration is 0.0001 M Absorbance is 1.2

Q: On analysis, an equilibrium mixture for the reaction 2H2S(g)   <-->  2H2(g) + S2(g) was found ...

A:

Q: Give a specific explanation for the observed differences in reactivity based on the atomic structure...

A: Based on atomic structure of element. If the element have one electrons or 7 electrons in outermost ...

Q: Calculate the concentration, in molality, of a sodium chloride solution created by dissolving 1.000g...

A: Here i have applied the molality formula

Q: Chemistry Question

A: A chemical reaction shows the reaction between reactants and product molecules. In balanced equation...

Q: Chemistry Question

A: By using definition of scintillation counter.

Q: 2+ The Kp for barium oxalate is 2.3 x 10® M. (reaction: BaC,O,(s) 5 Ba* (aq) + C,0 (aq) ) Calculate ...

A:

Q: A first-order reaction has rate constants of 4.6 x 10-2 s-1 and 9.6 x 10-2 s1 at 0°C and 20.°C, resp...

A: The given data contains, k1=4.6×10-2/sk2=9.6×10-2/sT1=273 KT2=293 K  

Q: Balance the following using the algebraic method: 1) CH3ONA + NaCIO2 + HCI → COCI2 + NaCl + Н20

A: The reactions in which oxidation and reduction occur are known as redox reactions. A balanced chemic...

Q: Predict the products and balance: C_2H_6 + O_2 ->

A: The reactants given are  1) Hydrocarbon C2H6  2) Oxygen O2   

Q: Please answer my question fast

A: In presence of UV light homolytic fission takes place and generates free radicals.

Q: How Many of water do You drink per day

A: . For adults, the general recommendation from The U.S. National Academies of Sciences, Engineering, ...

Q: Complete the following table: Ion Formula Ion Formula Compound Formula Na+ CH3COO A13+ so,?- K* Cro,...

A: The complete table is given below :