Recent questions in Chemistry

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A molecule contains a central atom with two identical bonds to other atoms and two lone pairs. The shape of this molecule is ________.

Nikita Smirnov asked Dec 15, 2024

by Nikita Smirnov

7.9k points

1 answer

3 votes

164k views

How many particles are in a 2.9 mole sample of Fe(NO3)2?

Bastijn asked Dec 15, 2024

by Bastijn

8.3k points

1 answer

0 votes

31.2k views

Aluminum oxide (Al2O3) is a material used in the manufacturing of many ceramics by the reaction below. If 3.50 moles of aluminum is reacted with 5.00 moles of oxygen gas, what mass of Al2O3, in grams,

Cegprakash asked Dec 15, 2024

by Cegprakash

7.5k points

1 answer

2 votes

175k views

What is the molecular weight (molar mass) of a gas with a density of 4.72 g/L at 124°C and 426 torr?

Cherusker asked Dec 15, 2024

by Cherusker

8.4k points

1 answer

5 votes

119k views

Which of the following is not like the others? a) File b) Wrench c) Grinder d) Oilstone

Viktor Livakivskyi asked Dec 15, 2024

by Viktor Livakivskyi

8.5k points

1 answer

1 vote

153k views

All of the following characteristics describe a modern type of fire extinguisher, EXCEPT: * A. It stores carbon dioxide under pressure as a liquid. B. It displaces the large volume of air in the fire zone

Shawn Blakesley asked Dec 15, 2024

by Shawn Blakesley

7.7k points

1 answer

5 votes

45.3k views

Measuring spoons are used to measure both dry and liquid ingredients. 1) True 2) False

Latovic asked Dec 15, 2024

by Latovic

7.5k points

1 answer

2 votes

186k views

2. Nitrogen gas and hydrogen gas combine to produce ammonia gas (NH3). What volume of hydrogen gas at STP would be required to react with 10.0 g of nitrogen gas?

Hirse asked Dec 15, 2024

by Hirse

7.6k points

1 answer

3 votes

56.0k views

How many moles of aluminum sulfate form from 4.65 mol AlBr₃? a. 1.55 mol b. 4.65 mol c. 3.10 mol d. 6.20 mol

Nuno Henriques asked Dec 15, 2024

by Nuno Henriques

8.2k points

1 answer

0 votes

28.9k views

What would be describe orbitals that make up a sigma bond? a. Sigma bond b. Pi bond c. Delta bond d. Gamma bond

Niculare asked Dec 15, 2024

by Niculare

9.1k points

1 answer

4 votes

50.5k views

Ready-to-eat TCS food held over 24 hours has a shelf life of how many days if stored at or below a temperature of 41°F?

Emeh asked Dec 15, 2024

by Emeh

7.8k points

1 answer

2 votes

148k views

How much flavor do could pour drinks recieve?

Lavelle asked Dec 15, 2024

by Lavelle

8.8k points

1 answer

2 votes

186k views

100 points find a way for elements that have atomic numbers that add up to 200. MUST include Ne

Sauumum asked Dec 15, 2024

by Sauumum

7.7k points

2 answers

5 votes

168k views

The units of blood pressure are most typically ______. mmHg inches of H2O dL of blood

KingFu asked Dec 15, 2024

by KingFu

7.5k points

2 answers

5 votes

173k views

Given the Ksp of Mecury (I) Bromide is 5.6 x 10-23 Calculate the concentration of Mecury ions (the salt exist as a dimer)

Venge asked Dec 15, 2024

by Venge

7.8k points

1 answer

0 votes

44.2k views

The mean time between collisions for electrons in a gold wire is 25 fs... A) Atomic physics concept B) Particle physics principle C) Electrical conductivity measure D) Thermodynamics concept

Sminutoli asked Dec 15, 2024

by Sminutoli

7.6k points

1 answer

0 votes

153k views

Potassium Permanganate is used for purifying drinking water, because A. it is a sterilising agent B. it dissolves the impurities of water C. it is a reducing agent D. it is an oxidising agent

Vikram Kumar asked Dec 15, 2024

by Vikram Kumar

8.1k points

1 answer

0 votes

79.0k views

Double replacement reactions do not show transfer of electrons, why not? a) Electrons are shared between atoms, not transferred. b) Electrons are gained by one atom and lost by another. c) Double replacement

Tanveerbyn asked Dec 15, 2024

by Tanveerbyn

7.4k points

1 answer

3 votes

202k views

In the case of a simple conversion reaction such as X->Y, which value of ΔG° is associated with a larger concentration of X than Y at equilibrium? (Hint: How is ΔG° related to K?) (a) ΔG°=-5 (b) ΔG°=-1

Souames asked Dec 15, 2024

by Souames

8.2k points

1 answer

4 votes

189k views

The net effect of the eight steps of the citric acid cycle is to: A) Completely oxidize an acetyl group to carbon dioxide. B) Convert pyruvate to succinate. C) Produce NAD+ and Q. D) Produce 8 ATP for

Yuchen asked Dec 15, 2024

by Yuchen

8.5k points

1 answer

1 vote

143k views

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