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Q: Are these net ionic equations correct?

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A: The atomic number of calcium is 20 (Number of protons). The symbol of the calcium atom is Ca. The…

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A:

Q: Identify the particle represented by X 235U + in → 23Zr + 1357TE + 2X 135Tе + 2X 40 4 (A В c) (D

A:

Q: The accompanying summary data on Ceo, particle sizes (nm) under certain experimental conditions was…

A: Total number of observations = 5 + 15 + 27 + 33 + 21 + 15 + 6 + 1 + 3 + 1 = 127

Q: sa particle.

A:

Q: A sample containing 1.00X 10 stored for 135 day s will remain at the end of the storag e period of…

A: Reaction in which rate is linearly depend upon one reactant is known as first order reaction.

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A: Interpretation: We have to identify the particle X.

Q: This is the heaviest naturally occurring element  A) 87Fr B) 94Pu C) 92U D) 103Lr E) 102No

A: This is the heaviest naturally occurring element-

Q: 9. +ie + -> +1е 10. Си + н 63 29 64 30 0Zп + 11. н + H + in ->

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

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A: The cathode-ray tube is a  tube that has a vacuum inside the tube which when irradiated with a beam…

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A: Copernican revolution is about the model of the solar system and was given by a polish astronomer.

Q: p. 5726Fe + on →. + 'on → 5926FE q. r. 5726FE > + °1B

A: During nuclear reaction various types of elements and isotopes are formed due to absorption or…

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A:

Q: Ch. 7-2 pg. 236 pp#1-2: Average Atomic Mass Find avg at mass Ga if 60.00% has mass 68.926 amu &…

A:

Q: I с со I [References] VII Available Electrons: 16

A: Here we have to follow the basuc rule of Lewis dot structure and proceed according to that .

Q: 247 96 Column A 1. 2. 3. Cm →He + 4X What is the atomic mass of the new atom? What is the atomic…

A:

Q: Find the atomic weight Isotope Atomic mass (u) Natural Abundance (%) Li-6 6.02 7.5 Li-7 7.02 92.5

A: Calculation of average masse of lithium:

Q: 17. Write the atomic mass for Carbon to 3 significant figures.

A: Carbon is non metal  Carbon Symbol is C  Carbon atomic number  is 6  Carbon electronic configuration…

Q: 1a. EtBOMe THF, -78 °C 1b. NABH4 3. DIBAL-H (1.2 eq) toluene, -78 °C ОН О .CO2tBu F1 F2 2. TESCI…

A: In above reaction, NaBH4 is reducing Agent. BiBAL H  also helps to reduces -CO group.

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A: Given here an expression for frequency, we are asked to solve the expression for frequency.…

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Q: Note the major accomplishment of each of the following:a. Dalton c. Chadwickb. Crookes d. Goldstein

A: Hi, since you have posted questions that has multiple subparts we will answer the first three…

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A: Isoelectronic species have equal number of electrons in them. They may be cation, anion or neutral…

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A: Consider the given balanced equation as; CaCl2 aq  +  2 AgNO3 aq  →  2 AgCl s  +  CaNO33 aq Given…

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A: The table details the types of radioactive decays by different isotopes.

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A: Rutherford initially thought that the atom consists of a electrons which are spread uniformly…

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A:

Q: Genetic ift-Wikip. - Algebra Foundatio. Image result for sur. 6 Classwork What belongs in place of…

A: Given, 26Mg  Number of neutrons = ? Mass number = 26 In the periodic table the atomic number of…

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A:

Q: - 22 A copper atom has a mass of 1.06 × 10 g and a penny has a mass of 2.5 g. Use this information…

A: Number of atoms in 1 mole of copper = 6.022 × 1023 atoms  Mass of one atom of copper = 1.06 x 10-22…

Q: li 7. Rewrite the isotopes above with the alternate abbreviation, record your answers in the answer…

A: We can use alternative symbol for isotopes as follows: Atom symbol- mass number For eg O-16  and…

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A:

Q: Relate the three (3) subatomic particles in your life as an enhanced science 8 student

A: The three (3) subatomic particles has to be related.

Q: 14. In the equation 228 90Th 22891PA + X which particle is represented by X?

A:

Q: Identify the particle represented by X 235U + ồn 18zr + 135Te + 2X 404 в

A: Given, 23592U + 10n → 9940Zr + 13552Te + 2X

Q: CH— ОН HI 39

A:

Q: Identify the particle represented by X 235U + ¿n → 18Zr + 135Te + 2X... 99 40

A: During radioactive decay, atomic mass and the atomic number of sum of all reactants and products…

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A: We have to find mass defect

Q: The table to the right gives the number of protons (p)and neutrons (n) for four isotopes. (a) Write…

A: A chemical element can be represented by the notation  XZA , where A is the mass number, X is the…

Q: खोक्कांकंर मीमट MAIS रOOMम ०f 7 जा्षुळ च्छाजीक प्मलैकव प्रेवा ललवडड नो 97.288 उhrad connवाकs उ. 8 7…

A:

Q: 13. What is the missing particle? 2Am + He → 2¿n + B. 2Bk 243 95 A. 2Bk 244 97 245 97 C. 2Bk 246 97…

A:

Q: toms Elements and lons -Attempt 1 unting Protons and Neutrons Reset Help 20 70 Element Number of…

A: An atom is a small particles that consists a nucleus which is surrounded by negatively charged…

Q: Part B The atomic number of carbon is 6. What is the mass number of a carbon atom with 5 neutrons?…

A: Given that, Atomic number of C=6 No. of neutron=5 so,

Q: 11. Complete the following table by filling in the number of electrons in the last column and by…

A:

Q: What is the mass of an electron?a) 1.67x10-24g b) 1.67x10-24 X (1/1837) c) 9.11 x10-28Kg d) 1.67…

A: Electron is a subatomic particle.

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.