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A 298-N force acts on a 200-g object. The acceleration of the object is?

Debarshi asked Dec 26, 2024

by Debarshi

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What is the molar concentration of sodium ions in a 0.350 M Na₃PO₄ solution? A) 1.05 M B) 1.40 M C) 0.350 M D) 0.117 M

Kaze asked Dec 26, 2024

by Kaze

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Verify the ground state energy (E₀) as 13.6 eV using (E₀ = {{2π²q⁴e²}}/{{mek²h²}}). a) (13.6 , {eV}) b) (3.14 , {eV}) c) (6.022 , {eV}) d) (9.81 , {eV})

Heyjii asked Dec 26, 2024

by Heyjii

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Please be thorough 2) (120 pts) REACTIONS Provide the bond-line structur

Gustavo Mora asked Dec 26, 2024

by Gustavo Mora

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3 votes

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100 POINTS help! What is the molar concentration and percent by mass of a 25.00 mL aqueous copper (II) sulfate solution if the mass of copper (II) sulfate is 12.50 g and the density of this solution is

Robert Hadsell asked Dec 26, 2024

by Robert Hadsell

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216k views

How many atoms are in 50 g of Zinc?

David Von Tamar asked Dec 26, 2024

by David Von Tamar

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99.3k views

Which elements have properties similar to those of chlorine (Cl)? a. Ar, S, P b. Na, Mg, Al c. F, Ar, Ne d. F, Br, I

Dekike asked Dec 26, 2024

by Dekike

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Which of the following processes requires the largest amount of work to be done on a system containing an ideal gas if the volume of the system is reduced to one-half of its initial value? 1) Isothermal

Paku asked Dec 26, 2024

by Paku

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Which of the following statements explains the solubility of ionic substances in water a)water is a covalent substance b)an oxygen atom has six electrons in its outermost level c)water molecules are polar

Artem Golenyaev asked Dec 26, 2024

by Artem Golenyaev

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The enthalpy of vaporization for methanol is 35.2 kJ/ mol. Methanol has a vapor pressure of 1 atm at 64.7 °C. Using the Clausius-Clapeyron equation, what is the vapor pressure for methanol at 41.9 °C?

Denzal asked Dec 26, 2024

by Denzal

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If a pump has an isentropic efficiency of 0.8, and its isentropic work is 80 kJ, determine its actual work estion 22 4 yet answered rked out of 4.00 Flag question Select one: a. 0.005 kJ b. 0.9 kJ 0 %

Lukaleli asked Dec 26, 2024

by Lukaleli

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The state of liquid water is changed from 60 psia and 50°F to 2000 psia and 100°F. Using appropriate tables, determine the change in the internal energy of water. Is it in Btu/lbm or Btu/ft³? A) Btu/lbm

Isurusndr asked Dec 26, 2024

by Isurusndr

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What amount of heat is required to raise the temperature of 350 grams of copper to cause a 25°C change? The specific heat of copper is 0.39 J/g°C. A. 2500 joules B. 2600 joules C. 3400 joules D. 3900 joules

Vaibhav Agarwal asked Dec 26, 2024

by Vaibhav Agarwal

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Which of the following compounds have the smallest formula mass? -NO₂ -SO₂ -SiO₂ -CO₂ -H₂O

Chengpohi asked Dec 26, 2024

by Chengpohi

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3 votes

168k views

What is the phi of a solution that is 0.20 m hch;o, and 0.40 m nac,h;o,? ka for acetic acid is 1.8×10-5. a) pH 2.00 b) pH 2.50 c) pH 3.00 d) pH 3.50

Acrilige asked Dec 26, 2024

by Acrilige

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147k views

IF UR SMART in chemistry please do the red underlined question!!!

ChrisZZ asked Dec 26, 2024

by ChrisZZ

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1 answer

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177k views

14. Which term describes the exact amount of energy that an electron must absorb or emit to move up or down energy levels? O proton quantum O photon O atomic mass

Nanda asked Dec 26, 2024

by Nanda

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How many grams of NH3 are needed to provide the same number of molecules as in 0.693 g of SF?

Deepesh Thapa asked Dec 26, 2024

by Deepesh Thapa

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14.8k views

What volume of isopropyl (rubbing) alcohol is in a 500.0 g bottle of rubbing alcohol if the density of isopropyl alcohol is 0.786g/cm30.786g/cm 3 ?

Stealthyninja asked Dec 26, 2024

by Stealthyninja

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90.1k views

The thermal decomposition of N₂O₅(g) to form NO₂(g) and O₂(g) is a first-order reaction. The rate constant for the reaction is 5.1 × 10⁻⁴ s⁻¹ at 318 K. What is the half-life of this process? a) 1354 seconds

DBlisse asked Dec 26, 2024

by DBlisse

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115k views

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