Explain why the size difference between Si and Ge is smaller than expected?

Q: How do I show my work for (4 x 103) / (2 x 106)?

A: Given,

Q: Let 38 Sr

A: 25096Cm     ------>    ? +    9838Sr    + 4 10 n In this problem,

Q: Engaging Activities Directions: Identify the state of matter of each item. Write S on each blank if…

A:

Q: [11/1 H ( #1111 Br A lin H

A:

Q: Which phase of the Moon occurs when the moon is between Earth and the Sun? O New Moon O Waxing…

A:

Q: Define each symbol in Einstein’s equation: E = mc².

A: Einstein showed from his theory of relativity that it is necessary to treat mass as another form of…

Q: K = 1.4 x 10-3) and 0. %3D

A: Given data are as follows: Weak base = 0.260 M Conjugate acid =0.530 M Kb= 1.4*10-5

Q: Which of the following is part O glass collection tubes a power source thormo meter

A: Hofmann apparatus used for  electrolysing  water and  it is invented  by August  Wilhelm Von…

Q: (4) in all the cases (1) to (4)

A: As we know, internet energy is state function. So, for cyclic process, change in internal energy ia…

Q: v is 9 L big, has a 37 °C, how many res.

A: Hello. Since more than one question has been asked, the first question shall only be answered in…

Q: Describe a patterns/trends in a PHYSICAL property as we move down group 1 and group 7? Group 1 Group…

A: To find: Physical property down the group 1 and group 7

Q: In Beer's Law, if the unit of b is cm, and unit of c is g/mL, what is the unit of ε? ( ε is Epsilon)…

A: Beer Lambert law provide a relationship between absorbance and concentration of absorbing species.…

Q: Which technique separates components of amixture based on the size of its particles? A. filtration…

A: The technique which separates components of mixture based on particle size has to be given.

Q: Which has the lowest value for IE1: O, Po, Pb, or Ba?

A: The atomic radius for a given element can be defined as the measure of the measure of the size of…

Q: In 2009, a team from Northwestern University and WesternWashington University reported the…

A: (a) Convert 0.20 g/cm3 to mg = 200 mg/cm3 The volume of a 10.0-mg sample of this material can be…

Q: b. 1 sos

A:

Q: what are refractory materials?

A: Materials that are inorganic non-metallic materials are called refractories.  They can withstand…

Q: H,O H,C-CN H0 HC HO. HN OH NH HN OH H,C OH H,C H,C" H,C 1 2 3 A 1 only B. 2 only C. 3 only D. 4 only…

A: The given reaction is hydrolysis of nitriles to carboxylic acids. Nitriles on hydrolysis first form…

Q: Here are two figures representing two diatomic molecules interacting:

A: Given : figures

Q: Mass of the gelatin capsule was:  0.1134 g Mass of the capsule and the allow sample was:  0.3218 g…

A: SOLUTION: Step 1: Mass of the alloy sample (m) = mass of the capsule+ alloy – mass of the capsule…

Q: Differentiate the following and give examples: AR grade CP grade USP grade

A:

Q: Q16. What is the mass % of A) 60%A, 10%C C) 30%A, 20%B components A, B and C at the point x? B) 10…

A: Given is a ternary phase diagram, also called the Gibb's phase triangle, consisting of three…

Q: Neon (Ne) 10 20

A: Protons are positively charged, electrons are negatively charged and neutrons are uncharged…

Q: GIVEN: (Probable atomic weights: N=14; O=16) 1. What is the most applicable state of matter for the…

A: Atomic weights: N=14; O=16

Q: 2022-2002 Bahar itehir Grup 1 Group Gryp 3 CEN 4

A:

Q: 20 Br 1. 2. НО. SiMe3

A: Reaction 1 : Heck coupling followed by methyl deprotection of methoxy using BBr3. Reaction 2 :…

Q: 0.390 J/gºC = 4.184 J/gºC nswer to the correct num

A: Question 14    We know ,  The amount of heat released or absorbed by a substance is  given by the…

Q: 1) The hydrated salt Al(NO3)3 nH20 is 7.194% by mass of aluminum. Calculate the value of n.

A:

Q: Which of the following are not allowed? State which rule is violated for any that are not allowed.…

A: The only allowed state is 4f2.

Q: Thermochemistry 1 Name Tbp AH fus ΔΗ C solid C liquid C gas vap (°C) (°C) (J/g) (kJ/mol) (J/ go°C)…

A:

Q: Perform the following calculations and round your answer with the correct number of sig figs: a.…

A: In cases of multiplication and division, count the number of significant figures in each given…

Q: Newton’s second law of motion states that larger things need more force to move them than lighter…

A: According to Newton’s second law of motion states that larger things need more force to move them…

Q: 1. The purpose of studying the various velocities and the distances of galaxies in these studies…

A: Hubble showed us that galaxies are receding away from us with a velocity that is proportional to…

Q: Distinguish between the key features of Charles's Law and Boyle's Law. Charles's Law Boyle's Law…

A:

Q: + Ca Mg + Ca2 - 2Fe"(aq) - Ni(s)+ 2Fc"(aq) BK' Au + 3K CH- Cu+ + H2

A: Chemical reaction which has positive cell potential will occur Spontaneous.  According to…

Q: MCQ 30: Polystyrene drinking cup can act like the apparatus of A. calorimeter B. spectrometer C.…

A: Styrene monomers are used to make polystyrene chains. Polystyrene is a low-cost, hard material that…

Q: Find the incorrect equality O 1h = 3600 s O 1 gal = 4 qt O 5 mL = 1 tsp O 1 L= 1000 mm %3D

A: Equality is a relationship between two quantities or more generally two mathematical expressions,…

Q: 0 30 5060 70 3600 UALA Weight percent tungsten 90 80 100 3422°C 3400 - 3200 3000 2800 2665 C 2670 C…

A: Few questions based on phase diagram that are to be accomplished.

Q: The hydrated salt Al(NO3)3•NH20 is 7.194% by mass of aluminum. Calculate the value of n.

A: The formula of salt given is Al(NO3)3.nH2O. And the mass percent of aluminium i.e Al = 7.194 %…

Q: What would the voltmeter read if metal A were connected to the red lead, with metal C being…

A:

Q: 12. What is the Law of Conservation of Mass?

A: In a chemical reaction, reactants are react to give the product. All chemical reactions take place…

Q: 1.) Liquid water molecules escaping from the surface enter into the Blank. What is the blank?

A: Liquid water molecules escaping from the surface enter into the ......

Q: Three fundamental states of matter are represented in the diagrams below. States of Matter II II…

A: Kinetic Energy is decided on the basis of arrangement of atoms. Tightly arranged = less kinetic…

Q: TRONIC STRUCTURE Interconverting the wavelength and frequency of.. X-rays have a wavelength small…

A:

Q: Rewrite 6 x 6 × 6 × 6 × 6 using an exponent.

A: The number that indicates the power to which another number is to be raised is known as exponanent.

Q: S20g2- + TI* → 2So42- + T13+

A: Answer : reaction is-  S2O82- + π+= 2SO42-. + π3+ First half reaction-  S2O82-. = 2SO42- On…

Q: 9. N. 10. CO 11. NO:

A: Given : Some molecules are given  To find : complete the table  Solution: Valence electrons are…

Q: а. Na(s) NH3 (1) Br b. BuzSnH -NTs t-BuO-Ot-Bu Br heat С. 1. AICI3 2. H20

A: