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How many isotopes does platinum have? - Socratic There are six isotopes of Pt Pt 190 Pt 192 Pt 194 Pt 195 Pt 196 Pt 198 are the isotopes of platinum Reference: https: www webelements com platinum isotopes html
Question #e395e - Socratic When decaying by alpha emission a nucleus drops by 4 in mass number and 2 in atomic number and emits a helium nucleus (alpha particle) which has mass number 4 and atomic number 2 194 81 T l → 190 79 Au + 4 2α Notice that the total mass number, and total charge (here only indicated by the atomic numbers ) remains unchanged, just moved around If the question meant another isotope, just
Question #a225d - Socratic WARNING! Very long answer! > The Ester Value is the number of milligrams of potassium hydroxide required to react with the esters in 1 g of a fat or oil Triglycerides (fats and oils) are important raw materials in the preparation of soaps Three measures of quality are the Acid Value, the Saponification Value, and the Ester Value "Ester Value = Saponification Value - Acid Value" Acid Value
Question #7f190 - Socratic As 52 + 122 = 132, the Pythagorean theorem is satisfied and we have a right angled triangle APB This means that both AP and PB are perpendicular to AB Eq1 = 0 008k 0 052 = 3 2k Eq2 = 0 005k 0 122 = 0 347222k We apply the Pythagorean theorem to find the magnitude of E : |E| = √0 3472222k2 + 3 22k2 = 3 2188k k = 9 0 ⋅ 109N m2 C2 The directionof E is almost along AP, though there is an
Question #2d808 - Socratic E = 190 kJ mol−1 −−−−−−−−−−−− The answers are rounded to two sig figs, the number of sig figs you have for the wavelength of the photon
Question #620d2 - Socratic "190 mL" Start by writing the balanced chemical equation that describes this double replacement reaction color (blue) (3)"AgNO"_ (3 (aq)) + "K"_ 3"PO"_ (4 (aq)) -> "Ag"_ 3"PO"_ (4 (s)) darr + 3"KNO"_ (3 (aq)) Notice that the reaction consumes color (blue) (3) moles of silver nitrate for every 1 mole of potassium phosphate that takes part in the reaction This tells you that in order for all
Site Map - Linear, Exponential, and Quadratic Models Questions and . . . If one travels 1 miles faster than the other, what is the rate of each? How many telephones could be handled by a switchboard that had the capacity of 190 connections? If P dollars is invested at r percent compounded annually, at the end of 2 yers it will grow to A = P (1+r)^2 At what interest rate will $1,000 grow to $1,210 in 2 years?
What is absolute zero on the Kelvin scale? - Socratic This one's easy: absolute zero = 0 K in degrees Kelvin 0 K, "absolute zero" is a theoretical temperature when all molecular motion stops Deep space is estimated to be approx 2 7 K