A neutral subatomic particle. a) compound b) mixture c) molecule d) neutron e) atom

Q: 15. How does the magnitude of the postsynaptic potential change as Cl- permeability increases? The p...

A: The correct option is:  

Q: Convert the following to scientific notation, keeping only 2 significant figures: 0.000892

A: Significant Figures or Numbers: A significant number can be defined as the total number of the digit...

Q: Buffer Capacity and pH Change 1. Calculate the pH of 0.030 M ammonia and 0.36 M ammonium chloride bu...

A:

Q: Naturally occurring neon exists as three isotopes. 90.51% is Ne-20 with a mass of 19.99 amu, 0.27% i...

A: Given: There are three naturally occurring isotope of Neon. Mass of isotope 1 = 19.99 amu. Abundance...

Q: What methods could be used to determine the structure of polyiodides? Discuss how could they identi...

A: Answer -  polyiodides - The polyiodides are a class of polyhalogen anions composed entirely of iodin...

Q: answer 1

A: Answer 1 :- Given :-  Length of steel pipe at 20 ℃, L = 7 m Final temperature = 30 ℃ Change in tempe...

Q: 4. What is the rate of heat transfer by radiation, with an unciothed person standing in a dark room ...

A: For the heat transfer by radiation 

Q: Twenty-five mL of 0.100 M lactic acid (K, = 1.4 x 104) is titrated with 0.097 M KOH. a) What is the ...

A:

Q: The mole is a unit for counting. O False O True

A: One mole of a substance is equal to 6.022×10^23 of that substance present in  ( atoms, molecules, or...

Q: Number of Number of Isotope Symbol Number of protons neutrons electrons 39K+

A:

Q: What is the molality of a solution containing 6.85 g of urea [(NH2),CO] in 177.5 g of water?

A: Molar mass of urea = 60 gm

Q: Rate constants for decomposition of gaseous dinitrogen pentoxide are 3.7 x 10-5 s-1 at 25°C and 1.7 ...

A: Formula we have to use is shown below  

Q: how does an acidic cation interact with water? provide a net ionic equation for an acidic cation

A: Acid are those substances which gives H+ ions dissolved in water or in aqueous state. 

Q: Identify which indicator will be suitable for the following titrimetric analyses: a. 0.100 M solutio...

A: The answer is as follows:  

Q: Write the molecular equation, the total ionic equation (TIE) and the net ionic equation (NIE) for th...

A:

Q: LO Profiles Tab Window Help Chrome File Edit View History Bookmarks Assign A ALE X b Answe C Calcul:...

A: Given, The solubility of CuCO3 in water at 25 °C is :

Q: Henderson-Hasselbach equation What is the pH of a 500 mL buffer containing 0.200 moles NH3 and 0.35...

A: Given,  Volume of the buffer = 500 mL = .5 L  Moles of NH3 = 0.200 mol  Moles of NH4Cl = 0.350 mol 

Q: 1. Match Letter with appropriate functional group -E A C Hydroxyl: Sulfhydryl: Carbonyl: Carboxylic ...

A: We have to determine the functional groups. Hydroxyl: -OH group is called a hydroxyl group. Sulfhyd...

Q: (Use the lowest poscibie coefficients for all reactions.) Al + Fes O4 Al, 03 +Fe Al + Fes O4 Al2O3 +...

A: Al + Fe3O4 --------> Al2O3 + Fe  Al 1 Al 2 Fe 3 Fe 1 O 4 O 3        

Q: A reaction is found to have an activation energy of 38.0 kJ/mol. If the rate constant for this react...

A:

Q: Give the formulas for the following compounds. sodium sulfide sodium nitrate mercury(II) iodide silv...

A:

Q: At 293K the vapor pressure of A is 30mmHg while that of B is 100mmHg. The two forms an ideal solutio...

A: Vapor pressure of a substance is the pressure exerted by the vapor above its solid or liquid state. ...

Q: A) B) C) D) :0: :0: る-chg +

A:

Q: What molality of NaCl is required to increase the boiling point of 500 g of water to 105°C? (K, is o...

A: Given: The boiling point of the solution = 105°C Mass of water = 500 g Standard data: Kb for wate...

Q: By using an illustration, show the general steps on the proper use of IR spectrophotometer

A: In the given problem we have to write the general steps which we follow during use of IR spectrophot...

Q: 2. Write the structural formula of the major organic product formed in each of the following reactio...

A: a) The product formed from the given reaction is 2-methyl pentan-3-ol.  

Q: Consider the following hypothetical double displacement reaction: A3B (aq) + CD2 (aq) --> What is th...

A: In balanced reaction number of each atom on reactant side is equal to number of each atom on product...

Q: 2CIO2 (aq) + 2 OH" (aq) – CIO3 (aq) + CIO2" (aq) + H20 (1) Initial [CIo,1 (M) Initial [OH] (M) Initi...

A:

Q: The decomposition of N205 to NO2 and 02 is first order, with a rate constant of 4.80 x 10-4/s at 45°...

A: Given Initial Concentration = 4.85 × 10-2 M Final Concentration = 1 × 10-2 M Time = 460 s K = 4.8 × ...

Q: 2. A 230 ml ethyl alcohol was placed in a Pyrex glass and makes it full at 22°C. How much alcohol wi...

A: Given: Initial volume of ethyl alcohol = 230ml T1 = 22°C T2 = 100°C ΔT = (100-22)°C = 78°C

Q: Complete the table of neutral ionic compunds with formulas and names for each cation-anion pair. Ans...

A: Ionic compound  Ionic compound composed of cation which is positively charged (+charge) and an anion...

Q: 2. Write the formula of the following compounds. 1) perchloric acid 2) potassium iodide 3) cobaltous...

A: Given compounds:  Perchloric acid Potassium iodide Cobaltous nitrite Lithium hydroxide Sodium hypoc...

Q: Explain the photosynthesis prcoess and respiration process in a tree.

A: Photosynthesis is a process by which plant turns water, sunlight and Corbon dioxide into oxygen and ...

Q: Calculate the percent by mass of the solute in the following aqueous solution. 31.0 g of KCl in 147 ...

A: Given  Mass of KCl     = 31 gram  Mass of water = 147 gram  Percent by mass of solute = ?

Q: Classify the following solutions as either acidic, basic or neutral. 0.0354 M H3o* v Choose... neutr...

A:

Q: 6. What is molality, m? What equation will you use to determine the concentration in molality of you...

A:

Q: HAVENLMBERS 3H 2H 上 2H 2H 20.09.5 9.0 B.5 8.b 7.5 PPM Proton NMR 4.0 3.5 3.0 2.5 2.0 1.5 PPM aromali...

A: 1HNmr values -

Q: Write in same form as question please THIS IS FOR BALANCING AND STOICHIOMETRY

A: For the Reaction.,  Cu + AgNO3 ----> Cu(NO3)2 + Ag Net Balanced Reaction., Cu + 2AgNO3 ----> C...

Q: The Covid-19 virus has an average size of 0.3 micrometers. What is the average size of the virus in ...

A: Average size of virus = 0.3 micrometres  Average size of virus (in centimetres) = ? 

Q: 1. Mg Br 2. Br

A: The reaction given is,    

Q: 12. Use curved arrows to illustrate electron movement, and draw the carbocation intermediate from th...

A: Alkene gives an electrophilic addition reaction with hydrogen halide to form an alkyl halide.

Q: Of the three mechanisms listed below, which mechanism agrees with the overall reaction and experimen...

A:

Q: ) the loss of an alpha particle by Thorium-232 j) the loss of a beta particle by Iodine-135

A: Nuclear chemistry can be defined as the branch of chemistry that deals with radioactivity, nuclear r...

Q: Place the best reagent in the bin for each of these reactions involving cyclohexylmethanol. Br Answe...

A: Answer: This question is best on chemical properties of primary alcohol. 

Q: Fill out the chart below Compound Weight in Mol. Wt. Moles Melting pt. in 1,4-diphenyl-1,3-butadiene...

A: A question based on mole concept that is to be accomplished.

Q: Write a balanced chemical equation based on the following description: a. solid chromium reacts wit...

A: Answer: Balancing of a chemical equation is based on the principle of conservation of mass which tel...

Q: The following are the products. Predict their reactants and show the mechanism of the reaction.

A:

Q: Classify the following as physical or chemical change: Roses turning brown [ Choose ] When water fro...

A: Physical change : It is basically a reversible reaction. Chemical change : It cannot be reversed onc...

Q: Calculate the amount of water (in grams) that must be added to each of the following substances to p...

A: The given data is as follows: (a) The mass of urea = 2.50 g The mass percent of the solution = 13.5 ...

Q: DIVISION NG NG LEN HHHH 東 WRAP-UP Direction: Evaluate the effect of intermolecular forces of molecul...

A: In the given problem we have to check the relation of strong and weak intermolecular force with visc...

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.