vvnicn or tne Toiiowing statements is true about eiectrois? The particle has no electrical charge. The particle that is gained or lost when forming ions. The particle is found in the nucleus. The number of these particles in the nucleus is equal to the atomic number. Which statement about the neutral isotopes of chlorine is correct? the number of neutrons, the number of electrons, and the mass number are the same the number of neutrons and the number of electrons are the same, the mass number is different the number of neutrons is the same, the number of electrons and the mass number are different the number of neutrons and the mass number are different, the number of electrons is the same 53 Which is correct for the chromium isotope Cr? 24 neutrons and 29 nucleons 24 protons and 29 neutrons 24 protons and 29 nucleons 24 electrons and 53 neutrons

vvnicn or tne Toiiowing statements is true about eiectrois? The particle has no electrical charge. The particle that is gained or lost when forming ions. The particle is found in the nucleus. The number of these particles in the nucleus is equal to the atomic number. Which statement about the neutral isotopes of chlorine is correct? the number of neutrons, the number of electrons, and the mass number are the same the number of neutrons and the number of electrons are the same, the mass number is different the number of neutrons is the same, the number of electrons and the mass number are different the number of neutrons and the mass number are different, the number of electrons is the same 53 Which is correct for the chromium isotope Cr? 24 neutrons and 29 nucleons 24 protons and 29 neutrons 24 protons and 29 nucleons 24 electrons and 53 neutrons

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter1: Basic Concepts Of Chemistry

Section: Chapter Questions

Problem 43GQ: Hexane (C6H14, density = 0.766 g/cm3), perfluoro-hexane (C6F14, density = 1.669 g/cm3), and water...

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Hexane (C6H14, density = 0.766 g/cm3), perfluoro-hexane (C6F14, density = 1.669 g/cm3), and water are immiscible liquids; that is, they do not dissolve in one another. You place 10 mL of each in a graduated cylinder, along with pieces of high-density polyethylene (HDPE, density = 0.97 g/cm3), polyvinyl chloride(PVC, density = 1.36 g/cm3), and Teflon (density = 2.3 g/cm3). None of these common plastics dissolves in these liquids. Describe what you expect to see.
Ksp = 5.48 x 10^-16.
Ksp=5.48 x 10^-16
What is the error in the answer to the following? a) (22.10 ± 0.01) + (37.51 ± 0.02) = b) (30.88 ± 0.03) - (31.57 ± 0.06) = c) (5.88 ± 0.05) × (2.17 ± 0.01) =
Add and subtract as indicated. Round off when necessary.a. 43.2 cm + 51.0 cm + 48.7 cm b. 258.3 kg + 257.11 kg + 253 kg
The number of hectograms (hg) in 3.95 x 104 cg is . 3.95 hg 0.03950 hg 39.5 hg 0.000395 hg 39,500,000 hg
f the tolerance of a 50 mL Burette is \pm 0.05 mL, which of the following would not be acceptable readings to record? 9.3 mL 43.02 ml. 22.3 mL 0.65 mL 52.45 mL 30.07 mL 15.30 mL 36.55
Answer in scientific notation with appropriate sigfigs. A drink mix sample is prepared by mixing a packet of beverage powder in a gallon (3.78 L) of water. A sample for analysis is prepared by diluting 10.00 mL of this solution in a 50.0 mL volumetric flask. When measured using a colorimeter, this diluted solution has an absorbance of (3.49x10^-1). The calibration curve for the experiment yielded a linear fit of y = (2.650x10^4)x+(4.215x10^-2) and an R2 value of 0.9911. Determine the molar concentration of food dye in the sample.
What volume of iron (density 7.87 g/cm3) would be required to balance a 2.80 cm3 sample of lead (density 11.4 g/cm3) on a two-pan laboratory balance?
HOC3- = 4.8x10^-11
320.28 - (6107.5/2.8). Express your answer to the appropriate number of significant digits. [(289.8 x 105 ) - (1.100 x 103 )] x 2.8974. Express your answer to the appropriate number of significant digits. (0.0041×20000.0)+(2817×14). Express your answer to the appropriate number of significant digits. 865×[1259−(3.98×106)]. Express your answer to the appropriate number of significant digits.
Chemistry Mass of crucible, lid, and compound Trial 1 Trial 2 fired 10 min and cooled 20 min 1st mass measurement (g) 45.058 48.882 fired an additional 2 min and cooled 20 min 2nd mass measurement (g) 45.141 48.593 fired an additional 2 min and cooled 20 min 3rd mass measurement (g) 45.147 48.696 The crucible gained mass during the firing, what was added?