How many moles of propylene (C;H6) are in 25.0 g of the substance?

Q: Deduce A.) 160 B. 85 C.) 25 D.) 134 the code Лимвет for CH₂ FCF

A: In 1929, Midgley and Henne created a naming system for halocarbons containing carbon, hydrogen,…

Q: The famous frenchman who invented a process was .......? The famous German who had a set of…

A: To write: The famous Frenchman who invented a process was .......? The famous German who had a set…

Q: Am I right? Calculate the mass percentage of water in the hydrate. Show the calculations. Sample 1…

A: mass percentage of water = Mas of waterMass of hydrate x 100

Q: ELECTROCHEMISTRY Using the Nernst equation to calculate nonstandard cell voltage A galvanic cell at…

A: Recall the given reaction,                                   3 Cu2+ aq + 2 Al s → 3 Cu s + 2 Al3+ aq…

Q: lead + oxygen → ……………………………...……oxide

A: Lead + Oxygen → ______________________oxide

Q: properties from left to right. However, the pattern of properties within a period repeats as you…

A: In this question, we have to explain what does periodic law state and mean.

Q: A particular atom has the symbol: 25Ne2- This atom has: protons - ? neurons - ?  electrons- ?…

A: The symbol is given as, 25Ne2- First of all, this is not an atom. This is an ion, an anion.  The…

Q: The firs 20 Periodic table elements description.

A: The first 20 Periodic table elements, atomic numbers and symbols are given below,

Q: What is the mass in grams of 49.60 moles of LICI?

A:

Q: information, deduce the formulas for compounds with the following codes: (a) 12 (b) 113 (c) 123 (d)…

A: The chemical formula for the chlorofluorocarbons = 90+ codeFrom the numeral,the first digit in the…

Q: 1.000 mole of oxygen is equal to how many grams of oxygen? d. 6.02 x 1023 a. 1.00 b. 16.00 c. 8.00

A: Answer:Each mole of a substance has  particles in its sample and mass of the each mole of a sample…

Q: Consider these compounds: A. PbF, В. Си(ОН)2 C. Cr(OH)3 D. Al(OH)3 Complete the following statements…

A: Whether we are able to compare the solubility of two salts by just looking into their Ksp values…

Q: D) HCI(g) + 40¿(g) Z ĮCL,(g) + ¿H,O(g) c) 4HCİ(g) + O2(g) 2 2C1,(g) + 2H,O(1) d) C(s) + CO,(g) 2…

A: In equilibrium constant expression partial pressure of gas and concentration of aqueous species are…

Q: A student pours green colored wintergreen rubbing alcohol into a glass half full with water. The…

A: The solubility of any two solutions depends upon their nature that they are the same or different.…

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: 2. Compute for the atomic mass of these isotopes. (Show your solution.) a. 160 (99.76%), 170…

A:

Q: 196. Identify the point groups following ChaBa .OH 2 in the Trans Mte

A:

Q: What is the isotope that is used in carbon dating? What is its half-life?

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: 54. Refer to the periodic table and state the highest energy sub- level for each of the following…

A: Highest energy sub levels are in elements is where last electron is filled in element. Based on…

Q: 272 17, -6s (l-35.5 0-1ul 272 of Lne Chlade wer farmed in ahie rescton. Calealore 2Zの0 2HCL -1>…

A: Given: mass of ZnCl2 = 272 g Atomic masses are:  Zn = 65 amu Cl =35.5 amu O = 16 amu The correct…

Q: An atom of hellum has a radius e = 31. pm and an average speed in the gas phase at 25°C of 787.m/s.…

A: rHe = 31. pmAverage speed in gas phase = 787.m/s Temperature= 25°C = 298K Uncertainty in speed =…

Q: What is the wavelength of light (in nm) if the energy of the wave is 1.43 x 10^-19 J? Give answer…

A:

Q: Sulphur has three common isotopes, with the masses and isotopic abundances shown below: ---> 31.97 u…

A: Given that : Sulfur has three isotopes : Isotopes Atomic mass (m) % abundance Sulfur-32 31.97…

Q: 8A 1A H 2A 3A 4A SA 6A 7A He Lu Be BCNOF Ne Na Mg 38 48 5B 6B 78 r BB 18 28 AI si PSCI Ar K Ca Sc TI…

A:

Q: 1. Please asssist in classifyiing annd differentiating the grooups of the cations and the…

A: cations can be classified into several groups based on their characteristics and properties. These…

Q: 3. What are the number densities of U-235 and U-238 in 10.4 g/cc UO₂ fuel if the fuel is power…

A: Given: Density of Uranium oxide (UO2) =10.4 g cm-3 Fuel enrichment (ωi)                    = 3.4573…

Q: Formula for theoretical yueld

A: Theoretical yield can be calculated by knowing the percent yield and the actual yield.

Q: A sample of gas mixture from a neon sign contains 5.12 x 10- mol Ne and 4.40 x 10- mol Kr. What are…

A: Mass percentage is the ratio of mass of a substance to the mass of mixture, multiplied by 100. Fir…

Q: 4. Determine the moles of HCl required to neutralize Mg(OH)2 (total – excess) and thus the moles…

A:

Q: Consider the molecule, SOCl2 What is the total number of valence electrons? (numerical answer only)

A: Valence Electrons (V.E) : The electrons which are present in outermost shell of atom.

Q: What do the formula H2O and H2O2 tell about composition? Are they the same compounds? Justify your…

A: The formula H2O and H2O2 belong to two different compounds. The chemical formula of H2O belongs to…

Q: why is the closest whole number 5?

A: It is hit and trial method At the end we are trying to get whole number.  Let 2.4 is multiply with 2…

Q: 6. Copy your data CHEMICAL FLAME COLOR OBSERVATIONS NAME & FORMULA Calcium, Ca Lithium Li Sodium,…

A: When metal ions are burned to high temperatures, they produce a variety of flame colors. The…

Q: Element A Element D Element X Element Z Mixture 750 700 650 600 550 500 450 400 Wavelength (nm) Use…

A: This question in the above image is based on the matching of lines in the mixture to the different…

Q: What charge does a proton have? *

A: Anything that has mass and occupies space is known as matter. Matter is made up of atoms. Atoms of…

Q: SOLVE STEP BY STEP IN DIGITAL FORMAT Structure of Metal Materials: 8. A colleague calculated the…

A: Structure of iron is BCC Atomic radius = 1.24 Angstrom Atomic weight = 55.85

Q: Select all the possible starting materials converted to the product under the following hydration…

A: Note: proton addition to double results carbocation. Sometimes less stable carbocation to more…

Q: What are the identities of your unknown? Explain clearly how you made the identifications.

A: Unknown compounds can be determined by their physical properties, functional group tests and…

Q: (d) Sb + He → I + ? 121 124 (e) 241 Am +'B → 4¿n+? 95 3° Cf + ? → 103L + 3 ¿n 259 98

A: Complete the following nuclear reaction ---

Q: I am currently in Anatomy and Physiology 101. We are in the Chemistry section of our lab book, and I…

A: Metals are the compounds which have luster and good conductor of heat and electricity. Metals are…

Q: I am stuck on question 4, I found everything

A: The objective of the question is to determine the weight in grams and weight percentage of magnesium…

Q: 77 K to FK = C + 273 C = 5/9 (F-32)

A: The objective of the question is to convert the given temperature in kelvin into Fahrenheit using…

Q: 2. Explain how the chemical formulas H (aa and H.O for the same thing. are interchangeable notation…

A:

Q: Nickel is used for.......

A: Atomic number of Ni is 28. It is a transition metal.

Q: N + KOH + Br₂

A: An amide is treated with bromine in an alkali solution in Hoffmann's bromamide reaction, which…

Q: is heated with 1.80 gof bromine. All the bromine is used upj and 2.07 g of magnesium bromide is the…

A: Massof magnesium remains unreacted = 6.856g

Q: hte Des-Ate adun sow eb fempilor de secdenisty d he ractelle

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.