Recent questions in Chemistry

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What does PCC do to a secondary alcohol?

Nick Wargnier asked Oct 11, 2024

by Nick Wargnier

7.1k points

1 answer

2 votes

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A surveyor discovers that the chlorine checks have not been done correctly. What kind of deficiency is this? 1) Human error 2) Equipment malfunction 3) Lack of training 4) Environmental factors

Sirlark asked Oct 11, 2024

by Sirlark

8.5k points

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2 votes

202k views

Given 2100 k for sodium, compute the ratio of the number of atoms in the 3p excited state to the number in the ground state in a natural gas/air flame. Which property should be considered to determine

Pete Otaqui asked Oct 11, 2024

by Pete Otaqui

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2 votes

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A certain element, X, forms the fluorides XF₃ and XF₅. Element X also reacts with sodium to form Na₃X. Give the symbol of an element that behaves in this way.

Hamid Ghorashi asked Oct 11, 2024

by Hamid Ghorashi

8.0k points

1 answer

1 vote

138k views

A gas has experienced a small increase in volume but has maintained the same pressure and number of moles. According to the ideal gas law, how has the temperature of the gas changed?

Sam Elliott asked Oct 11, 2024

by Sam Elliott

8.0k points

1 answer

2 votes

14.1k views

Give the IUPAC name for the following organic molecule

Sophros asked Oct 11, 2024

by Sophros

7.6k points

1 answer

4 votes

148k views

Which of the following is the nucleophilic site in the reactants of the following reaction? 1) C of the carbonyl 2) O 3) Li 4) Me of Li-Me

Dan Weber asked Oct 11, 2024

by Dan Weber

8.3k points

1 answer

4 votes

180k views

Helpppp me please i posted what it looks like in a screen shot

Aziz Punjani asked Oct 11, 2024

by Aziz Punjani

8.4k points

1 answer

2 votes

194k views

100.0 mL of 2.00 M sulfuric acid neutralizes with what mass of potassium hydroxide

Abhinav Gauniyal asked Oct 11, 2024

by Abhinav Gauniyal

8.2k points

1 answer

2 votes

123k views

List the 3 sources of water commonly used in the bottled water industry:

Amir Movahedi asked Oct 11, 2024

by Amir Movahedi

8.0k points

1 answer

1 vote

152k views

How is the miscibility of two liquids related to their polarity? Check all that apply. a. Polar liquids cannot mix with nonpolar liquids. b. Nonpolar liquids cannot mix with other nonpolar liquids. c.

Daniel Gratzer asked Oct 11, 2024

by Daniel Gratzer

8.1k points

1 answer

5 votes

19.9k views

A scientist has a 15.0 gram sample of solid aluminum. How much heat must this sample lose for its temperature to change from 550.0°C to 540.0°C

Andrew Lavers asked Oct 11, 2024

by Andrew Lavers

7.1k points

1 answer

5 votes

185k views

The clinical chemistry department performs which of the following tests? A. Blood typing B. Urinalysis C. Microbial cultures D. X-ray imaging

Jayendra Gothi asked Oct 11, 2024

by Jayendra Gothi

8.2k points

1 answer

1 vote

124k views

Items should be removed from the autoclave: a.immediately when the autoclave shuts off. all items in the autoclave have dried completely. c.5 mins before the autoclave is finished. need to wait 5 mins

Olle Kullberg asked Oct 11, 2024

by Olle Kullberg

8.5k points

1 answer

1 vote

55.6k views

Answer the following questions using the unbalanced chemical equation. The final answers will be answered to three significant digits. SHOW ALL WORK! C3H8 + O₂ → H₂O + CO2 1) If 28.0 grams of C3Hs react

Sourabh Kumbhar asked Oct 11, 2024

by Sourabh Kumbhar

8.3k points

1 answer

3 votes

80.0k views

95.0 g of an unknown metal at 100°C is placed in 800 g of water at 25.0°C. The final temperature of the water is 29.8°C. What was the specific heat of the metal? A. 0.5 J/g°C B. 1.0 J/g°C C. 2.0 J/g°C

BubbleMonster asked Oct 11, 2024

by BubbleMonster

8.5k points

1 answer

2 votes

54.7k views

Describe a method for separating pure salt from a rock salt mixture. O

Daliana asked Oct 11, 2024

by Daliana

8.6k points

1 answer

3 votes

117k views

What is the ph of a buffer system prepared by dissolving 10.70 grams of nh₄cl and 25.00 ml of 12 mol l⁻¹ nh₃ in enough water to make 1.000 l of solution? kb = 1.80 × 10-5 for nh₃. 1)9.43 2)9.08 3)9.26

Shanet asked Oct 11, 2024

by Shanet

8.0k points

1 answer

5 votes

203k views

How many liters of CO₂ are produced at STP if the cylinder contains 816 g of propane? 10.5 L 15.0 L 20.0 L 25.5 L

Cching asked Oct 11, 2024

by Cching

7.7k points

1 answer

5 votes

114k views

To make a glycerophospholipid, fatty acids are esterified at the: A. 1st and 2nd carbons B. 1st and 3rd carbons C. 2nd and 3rd carbons D. 2nd and 4th carbons

Nemequ asked Oct 11, 2024

by Nemequ

8.5k points

1 answer

3 votes

135k views

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