Recent questions in Chemistry

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What is the name of proper organic molecules

JR Lawhorne asked Dec 25, 2024

by JR Lawhorne

7.8k points

1 answer

2 votes

71.3k views

What is the mass of carbon present in 0.5 mole of sucrose? a) 6 grams b) 12 grams c) 24 grams d) 36 grams

Jogshardik asked Dec 25, 2024

by Jogshardik

8.2k points

1 answer

0 votes

203k views

Recrystallizing an anhydride (such as the product of this reaction) from water or from an alcohol is rarely a good idea.

Antred asked Dec 25, 2024

by Antred

8.8k points

1 answer

2 votes

41.2k views

What is the weight % of Metals in crude oil? a) Less than 1% b) Around 5% c) Approximately 10% d) More than 20%

George Robinson asked Dec 25, 2024

by George Robinson

7.6k points

1 answer

0 votes

163k views

Which of the following statements correctly describes the relationship between principal energy levels of an electron and the principal quantum number? 1) Energy levels have no relationship to principal

Alexander Sigachov asked Dec 25, 2024

by Alexander Sigachov

7.7k points

1 answer

2 votes

192k views

Chlorine should be ____ in a pool and _____ in a wading pool or spa

Julien Arzul asked Dec 25, 2024

by Julien Arzul

8.2k points

1 answer

3 votes

179k views

Which side of the reaction is the acid HCI? CaC*l_{2} + H_{2}*O -> CaO + 2HCl

Sergey Moiseev asked Dec 25, 2024

by Sergey Moiseev

8.5k points

1 answer

0 votes

219k views

Society says, “Education is the key to success.” What do you believe and why?

Tbl asked Dec 25, 2024

by Tbl

7.5k points

1 answer

3 votes

193k views

How much sodium acetate stock and sodium chloride stock are used? A) 28.3 mL of sodium acetate stock and 20 mL of sodium chloride stock. B) 27 mL of sodium acetate stock and 12.5 mL of sodium chloride

Douglasr asked Dec 25, 2024

by Douglasr

8.4k points

1 answer

1 vote

44.1k views

Which two of the following are common methods to inhibit sugar crystallization in non-crystalline candy making

Ben Hamilton asked Dec 25, 2024

by Ben Hamilton

8.5k points

1 answer

5 votes

211k views

Calculate to the correct number of sig figs. A) (24.6681 x 2.38) + 332.58 B) (85.3 - 21.489) x 0.0059 C) (512/986.7) + 5.44 D) [(28.7 x 10⁵)/48.533] + 144.99

David Gonzalez asked Dec 25, 2024

by David Gonzalez

8.3k points

1 answer

5 votes

194k views

Two important things to remember while using a thermotor

Terance asked Dec 25, 2024

by Terance

9.1k points

2 answers

4 votes

69.7k views

What is the correct name for the compound Ni₂CO₃? a) Nickel(II) oxide b) Dinickel trioxide c) Nickel trioxide d) Nickel (III) oxide

Dave Martin asked Dec 25, 2024

by Dave Martin

7.8k points

1 answer

0 votes

169k views

Carbon monoxide reacts with hydrogen to form methanol. CO undergoes? 1) oxidation 2) reduction 3) neither

WiRa asked Dec 25, 2024

by WiRa

7.7k points

1 answer

3 votes

38.9k views

Frozen Carbon Dioxide, also referred to dry ice, can go from being a solid to a gas. What is this phase change called? a) Deposition b) Vaporization c) Condensation d) Sublimation

Morphasis asked Dec 25, 2024

by Morphasis

8.2k points

1 answer

4 votes

210k views

A homogeneous mixture is one that: A. contains only one element B. is uniform in composition C. cannot change state easily D. acts as a solvent

Panchu asked Dec 25, 2024

by Panchu

7.3k points

1 answer

0 votes

8.4k views

When the body produces more carbon dioxide, what happens to the pH?

Amin Etesamian asked Dec 25, 2024

by Amin Etesamian

8.5k points

1 answer

4 votes

19.9k views

In which group of modern periodic table alkali earth and halogen are kept?

Thrax asked Dec 25, 2024

by Thrax

8.9k points

1 answer

1 vote

36.2k views

What would be osmotic pressure of a solution containing 5.85 g NaCl and 3.42 g sugar in 500 mL at 27°C? (1) 103.4 atm (2) 10.34 atm (3) 1.034 atm (4) 0.1034 atm

Cheroky asked Dec 25, 2024

by Cheroky

8.0k points

1 answer

0 votes

203k views

The following redox reaction occurs betwen the dichromate ion and ethanol: 3CH3CH2OH + 2CrO7^2- + 16H+ => 3CH3COOH + 4Cr^3+ + 11H2O A chemist uses 26.25 mL of 0.500 M CrO7^2- to titrate a 10.0 mL sample

Keely asked Dec 25, 2024

by Keely

8.7k points

1 answer

1 vote

101k views

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