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What is the main difference between simple and vacuum distillation in terms of boiling point? A) Simple distillation has a lower boiling point. B) Vacuum distillation has a lower boiling point. C) Simple

Keba asked Dec 24, 2024

by Keba

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report sheet-experiment 5 name/id/crn: jesutunmise ogunlusi 100877201 (total 20 marks) 1. (a) record your experimental data (temperature ranges for each fraction, distillate volumes, mass and volume for

Vdclouis asked Dec 24, 2024

by Vdclouis

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a sample containing 22.0 g of gaseous carbon dioxide occupies a volume of 15.3 l. what will the new volume be if an additional 15.0 g CO₂ are added, with no change in temperature or pressure.

Antonmos asked Dec 24, 2024

by Antonmos

8.5k points

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3 votes

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Which of the following statements about idea models is not true? a. Idea models depict a concept. b. Idea models are typically used to predict natural disasters. c. Idea models are typically in the form

Apneadiving asked Dec 24, 2024

by Apneadiving

8.6k points

1 answer

0 votes

192k views

What colour is a nun luminous flame?

AndreaBogazzi asked Dec 24, 2024

by AndreaBogazzi

7.5k points

1 answer

4 votes

6.1k views

Ethyl chloride, C₂H₅Cl, is used as a local anesthetic. It works by cooling tissue as it vaporizes; its heat of vaporization is 26.4 kJ/mol. How much heat could be removed by 10.0 g of ethyl chloride?

Steve Hansell asked Dec 24, 2024

by Steve Hansell

8.7k points

1 answer

2 votes

128k views

A football player runs in a straight line down the field, crossing the 20-yard line when the stopwatch reads 12 seconds and crossing the 70-yard line when the stopwatch reads 17 seconds. What is his speed

AmyShamna asked Dec 24, 2024

by AmyShamna

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1 answer

2 votes

102k views

Given the same reactant concentrations, the reaction CO (g) + Cl₂(g) → COCl₂(g). At 250 C is 1.50 x 10³ times as fast as the same reaction at 150 C. Calculate the activation energy for this reaction. Assume

INeal asked Dec 24, 2024

by INeal

9.0k points

1 answer

5 votes

177k views

A 3.63 mol sample of freon gas was placed in a balloon. Adding 3.50 mol of freon to the balloon increased its volume to 30.2 L. What is the initial volume of the balloon?

Ozge asked Dec 24, 2024

by Ozge

8.1k points

1 answer

4 votes

107k views

"Identify each of the following as a formula of an organic or inorganic compound: Part F Part complete C4H9Br" a) Organic b) Inorganic

Pepijn Gieles asked Dec 24, 2024

by Pepijn Gieles

7.3k points

1 answer

2 votes

161k views

oxidation take place at the anode during electrolysis because the anode is (a) is deficient in electrode (B)is deficient in proton (c) has excess electron (d)has attraction for positive ion

Shiblon asked Dec 24, 2024

by Shiblon

8.0k points

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5 votes

87.6k views

Please help I’m timed !!! Determine the percent dissociation of a 0. 18 M solution of hypochlorous acid, HClO. The Ka for the acid is 3. 5 x 10-8 Оа Oь Ос Od 7. 9' 10-3 % 4. 4'10-2% 6. 3' 10-9% 3. 5' 10-6

Milvia asked Dec 24, 2024

by Milvia

7.9k points

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1 vote

135k views

To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 1.00-L bulb, then filled it with the gas at 1.10 atm and 23.0 ∘C and weighed it again. The difference

Mikia asked Dec 24, 2024

by Mikia

7.8k points

1 answer

4 votes

44.7k views

Consider an atom of nucleus contain 30 neutrons

Basavaraj asked Dec 24, 2024

by Basavaraj

8.2k points

1 answer

3 votes

9.1k views

In a hypothetical molecule, a Nitrogen has two sets of lone pair electrons and two covalent bonds. What would its formal charge be? Options: (A) -2 (B) -1 (C) 0 (D) +1

Eric Jorgensen asked Dec 24, 2024

by Eric Jorgensen

8.2k points

2 answers

5 votes

121k views

in hot and dry climates, fountains of gently dripping water are often used to cool courtyards. Explain hwo FAST

Rudi Urbanek asked Dec 24, 2024

by Rudi Urbanek

7.9k points

1 answer

0 votes

225k views

What is the correct notation for a calcium ion whose outer shell is a full octet? a) Ca¹+ b) Ca²+ c) Ca¹- d) Ca²-

Christopher Costello asked Dec 24, 2024

by Christopher Costello

8.3k points

1 answer

4 votes

96.7k views

Draw all the structural isomers for the molecular formula C₄H9Br.

Garth Gilmour asked Dec 24, 2024

by Garth Gilmour

8.3k points

1 answer

5 votes

82.1k views

When choosing pesticide resistant Personal Protective Equipment (PPE) you must also consider? A. Length of exposure to pesticide B. Country manufactured in C. Relative humidity

AndrewSwerlick asked Dec 24, 2024

by AndrewSwerlick

8.4k points

1 answer

5 votes

149k views

What is the most common ion charge for bromine? A. +1 B. +2 C. -1 D. -2

Shawnzhu asked Dec 24, 2024

by Shawnzhu

7.7k points

1 answer

4 votes

51.5k views

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