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If potential energy between a proton and an electron is given by |U|=ke2/2R3, where e is the charge of electron and R is the radius of atom, then radius of Bohr's orbit is given by (h = Planck's constant,

Naidim asked Dec 16, 2024

by Naidim

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T or F? Allylic radicals are more stable than primary, secondary, tertiary or vinyl radicals?

Abdullah Al Shakib asked Dec 16, 2024

by Abdullah Al Shakib

8.1k points

1 answer

0 votes

80.4k views

Energy is required to ____ (break/form) bonds, whereas energy is released when bonds are ____ (broken/formed).

Vestland asked Dec 16, 2024

by Vestland

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What is the molarity of an HCl solution if 24.0 mL is completely neutralized by 98.0 mL of 0.250 MCa(OH)₂?

Esad asked Dec 16, 2024

by Esad

8.0k points

1 answer

0 votes

39.4k views

"The chemical formula below shows how salt is produced. HCl + NaOH NaCl + H₂O Which substances are the reactants? A.HCl and NaCl B.NaCl and H₂O C.HCl and NaOH D.NaOH and H₂O"

Clarinetist asked Dec 16, 2024

by Clarinetist

8.2k points

1 answer

1 vote

9.1k views

Draw the structure of water. is water considered polar or nonpolar? explain why

Miiiii asked Dec 16, 2024

by Miiiii

8.3k points

1 answer

4 votes

53.4k views

Hydroxyapatite is a mineral present in the bones and nail polish of our teeth. About 99 % of calcium element and 80 % of the phosphorus element found in our body present in the form of this mineral. Hydroxyapatite

Vivatus asked Dec 16, 2024

by Vivatus

8.1k points

1 answer

4 votes

41.2k views

Detergents are best able to dissolve oil from fabric or dishes during washing because: A) They are acidic B) They are basic C) They are nonpolar D) They have both hydrophilic and hydrophobic regions

Lakmal Caldera asked Dec 16, 2024

by Lakmal Caldera

7.4k points

1 answer

2 votes

173k views

What does the term aerobic mean? O having enough oxygen O having limited or no oxygen O having enough carbon dioxide O having enough hydrogen

Ellochka Cannibal asked Dec 16, 2024

by Ellochka Cannibal

8.1k points

1 answer

2 votes

104k views

Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of H₂SO₄ and KOH are mixed. a. H⁺(aq) + OH⁻(aq) → H₂O(l) b. 2H⁺(aq) + 2OH⁻(aq) + 2K⁺(aq) + SO₄²⁻(aq) → 2H₂O(l)

Masmic asked Dec 16, 2024

by Masmic

7.9k points

1 answer

3 votes

192k views

Calculate the pH of a 0.0 224M HCl solution assumed HCl dissociate completely in water

Li Bing Zhao asked Dec 16, 2024

by Li Bing Zhao

8.0k points

1 answer

4 votes

72.3k views

18.how would each of the following changes affect the equilibrium position Please help me please both 18 and19

Waqar Detho asked Dec 16, 2024

by Waqar Detho

7.7k points

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70.8k views

A constant electric current deposits 0.365 g of silver metal in 12960 seconds from a solution of silver nitrate. What is the current?

Josh Rieken asked Dec 16, 2024

by Josh Rieken

8.8k points

1 answer

1 vote

88.1k views

What enzymatic reaction is catalyzed by hexokinase and glucokinase?

Nidhin David asked Dec 16, 2024

by Nidhin David

8.2k points

1 answer

0 votes

20.4k views

Question 1 (Multiple Choice Worth 3 points) (01.02 LC) Complete this sentence. If the force of gravity___, the weight of an object will____ O decreases, increase O Increases, increase O increases, stay

Vasil Velichkov asked Dec 16, 2024

by Vasil Velichkov

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1 vote

138k views

The gamma decay of uranium-238

PeerNet asked Dec 16, 2024

by PeerNet

7.9k points

1 answer

3 votes

110k views

Which of the following statements is true? Inside the cell the quantity of positively charged ions is greater than the quantity of negatively charged ions. Inside the cell the quantity of positively charged

Reggie asked Dec 16, 2024

by Reggie

7.8k points

2 answers

2 votes

184k views

How much hydrogen and oxygen are in 100 grams of water? A) 50 grams of hydrogen and 50 grams of oxygen B) 80 grams of hydrogen and 20 grams of oxygen C) 20 grams of hydrogen and 80 grams of oxygen D) 100

Harrison Croaker asked Dec 16, 2024

by Harrison Croaker

8.8k points

1 answer

0 votes

121k views

The heat of vaporization for water is 40. 7 kJ/mol. A given amount of water requires 63. 8 kJ of energy to boil. The mass of the sample of water is - 13. 2 g 18. 0 g 22. 28 28. 2g 62. 38

Helenus The Seer asked Dec 16, 2024

by Helenus The Seer

7.3k points

1 answer

4 votes

73.7k views

A 2.200 g sample of quinone,C₆H₄O₂, is burned in a bombcalorimeter whose total heat capacity is 7.854 kJ/°C. Thetemperature of the calorimeter increased from 23.38°C to 30.51°C. What is the heat of combustion

ZephDavies asked Dec 16, 2024

by ZephDavies

8.8k points

1 answer

4 votes

107k views

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