Please let me know which 2 answers are correct, an explanation including evidence

Q: 2= h √2л mk T

A:

Q: Are there any other suggestions

A:

Q: Write True or false , re write the wrong statements

A: 04. (a) True statement When sugar is added, the sugar molecules dissolve into the water. The causes…

Q: Please answer TRUE or FALSE to the following questions attached!

A: Dear student I have given answer to first three parts of your question in the image format.I cannot…

Q: Please answer No. 1, No. 2 and No.3

A: Isotopes are those elements which have same atomic number but different mass numbers. There are many…

Q: Answer questions 2, 3 and 4

A: Mole ratio depends upon the number  of moles of Reactant  and Products .

Q: direct answer pls no explanation ANSWER NUMBER 2 ONLY

A: The reaction between solid white phosphorus and oxygen produces solid tetraphosphorusdecoxide.

Q: CH3 H,0 22° С

A: The reaction given is,

Q: b. HaOa В. . CiaHaaO1 d. Naci

A:

Q: Table 1. Data for standard addition method Volume of Tablet Volume of standard Absorbance Final…

A: Given Data for standard addition method. Concentration of standard solution in 250 mL…

Q: Please answer 1-3.

A: 1. Chemical reaction Ba (s) + Cl2 (g) →BaCl2 (s) ΔH = -858.6 kJ/mol ΔH is in negative value, means…

Q: CH, CH,

A:

Q: + 70 1 NO-

A: Given ,  Mass of ammonia ( NH3) = 222 g.  Molar mass of NH3 = (14.01×1)+(1.01×3)…

Q: Please put the answers as p: e: n:

A: z=atomic number ( or) no of protons A=Z+N A=ATOMIC/ISOTOPE MASS Z=atomic number ( or) no of protons…

Q: ΔG = ΔG° − RTlnQ Group of answer choices True False

A: The above equation is nernst equation

Q: Write the letter T or F inside each box after deciding which statement is true or false. Then on…

A: As you have asked question with multiple subparts we will solve the 1st 3 subparts, if you want a…

Q: Which answers?

A: Hii there, since there are multiple questions posted. We are answering first question. If you need…

Q: Please solve both sub-parts accurate and exact answers please it's very important!! I'll rate it up…

A: The concentration of the unknown solution provides information about the quantity of the substance…

Q: Is this data precise? Explanation required.

A:

Q: The data below apply to questions 13 - 18. A sample is believed to consist of Epsom Salt, MgSO47H2O.…

A:

Q: CaSO 4

A: NiS= Insoluble salt but soluble in nitric acid   Ba(NO3)2= Soluble salt in water   CaSO4= Slightly…

Q: True or false. Underline the wrong word and write the correct answer.

A: Given is  HCHO(formaldehyde) reacts with ethanal to give methanol and sodium formate.

Q: Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Unknown final buret reading (mL) 26.33 30.29 33.21…

A: Volume dispensed = Final burette reading - initial burette reading  Using dilution law- M1V1 = M2V2…

Q: (Several choices may be correct.)

A: Addition of Br2(BROMINATION) of alkene   (-C=C-) yields a dibromo compound

Q: Calculate the minimum error due to balance. Select the correct answer. O 5.1 x 10-4 O 5.6 x 10 6 5.1…

A: the solution is shown below.

Q: Weight of sample Nx Vx mEq weight (9) %3D x 100 96

A:

Q: e 0= -8°

A:

Q: Question 3 ) Could please explain. I've been watching videos, but none have been adding a whole new…

A: The question  is based on le-chatelier principle.   IT states that when a system at EQUILIBRIUM is…

Q: rue or false Please answer c,d,e

A: NMR technique involves the identification of organic compounds on the basis of the proton…

Q: Answer

A: We will give true or false

Q: Please Help me complete part d, e and f of question 4.

A: (d) Atoms are indivisible particles, contains only same type of Substances. From the given samples,…

Q: 140 130 120 110 100 NaNO3 90 80 3 70 60 NH&CI KCI NaCI 50 40 30 20 10 KCIO3 -Ce2(SOa)3 O 10 20 30 40…

A:

Q: 100 a. 43 80 60 40 20 86 58 71 20 40 60 80 100 120 100 b. 57 80 60 29 40 86 20 20 40 60 80 100 120…

A: Mass spectra is used to measure the mass to charge ratio of molecules in a sample.

Q: How does analytical chemistry help in forensic science?

A: The way how analytical chemistry help in forensic science has to be given,

Q: Q2. 6-8 Choose the correct answer.

A: Molecular formula  Expresses information about the proportions of atoms that constitute a particular…

Q: rder the following in increasing volume. (1=smallest; 4=largest)    Question 4 options:   7.6 x…

A: Given,7.6 × 103 cm38.8 × 1010 pL2.4 × 107 uL9.9 × 108 nLRequired,                    Increasing…

Q: : 5. Ca

A:

Q: Br 1) NaCN, DMSO 2) excess LАН 3) Н20

A: We have given the organic reaction and we have to find the major product of the reaction.

Q: answer 4

A: 4 . F2, Cl2, Br2,I2.  -------> -1      O2, S,Se ------------>     -2       N2, P…

Q: Write a 2-3 paragraph summary on an advanced material. Make sure to include the following: 1)…

A: Advanced materials are specially engineered to exhibit novel or enhance properties  that portray…

Q: 200-2.5 acid

A: According to Bartleby guidelines, we're supposed to answer first question among non related type of…

Q: Solve the attached file

A: Given ions,        Cd2+ and S2-

Q: i. ii. 1) Me,CuLi 2) LIAIH4 3) Н-О 1) DIBAH 2) MeMgBr 3) Н2О iii. iv. 1) EtMgBr (excess) 2) H20 1)…

A: The question is based on the concept of organic reactions.   We have to convert the reactant into…

Q: Kindly Answer the observation ad conclusion of the experiment. Even if it is your guess.

A: On rubbing a little amount of lab spirit/rubbing alcohol on skin, the skin feels cool compared to…

Q: pH = log [H+]  True  False

A: The answer is explained below.

Q: ANSWER 4-10 AND FOLLOW THE INSTRUCTIONS Write the letter T or F inside each box after deciding…

A: Que -4 - both the statement are false            F                F             D Que -5 - first…

Q: Answer 10.59 (c)

A: The importance of Gibbs energy is that it gives information about the spontaneity of the reaction or…

Q: CI H CI- CI 17Peak ómy CI C ČI CI CI

A: Given

Q: 4. K2SO4(aq) + Pb(NO3)2 (aq) -----> PbSO4(s) + KNO3(aq)

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: True or False         T   =   PV/nR Group of answer choices True False

A: Recall the given equation,                 T = PVnR We have to identify the above mathematical…