Recent questions in Chemistry

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Intra-abdominal pressure during the instillation of CO₂for creation of pneumoperitoneum is 10-15 mm Hg. A pressure reading higher than this may indicate that the needle may be?

Abderrahmane asked Dec 16, 2024

by Abderrahmane

7.8k points

1 answer

3 votes

229k views

Which of the following is an alkaline earth metal? (Rb, Sr, Zr, none)

Ledneb asked Dec 16, 2024

by Ledneb

8.6k points

1 answer

0 votes

28.4k views

Before the gas containers can be used, a regulator must be attached to each of the a) Tubes b) Valves c) Pipes d) Hoses

Erparker asked Dec 16, 2024

by Erparker

7.6k points

1 answer

0 votes

148k views

Write a balanced nuclear reaction for the following: (₈₁²¹⁶Po → β⁻/+) When balancing the nuclear reaction, explain the following: How does the Law of Conservation of Matter dictate what the daughter nuclide

Maged Adel asked Dec 16, 2024

by Maged Adel

7.4k points

1 answer

2 votes

204k views

As far as I understand, the equation for a kinetic equilibrium is always the same, and is given by: K=concentration of productspconcentration of reactantsr Wherepandrare the stoichiometric coefficients.

Maschina asked Dec 16, 2024

by Maschina

7.9k points

1 answer

4 votes

187k views

A chicken casserole has been cooled to 41 degrees. Now, it's time to reheat for hot holding. You want to heat in the microwave, what are the requirements?

Leusrox asked Dec 16, 2024

by Leusrox

7.6k points

1 answer

4 votes

172k views

What do lemons, tomatoes, and coffee all have in common chemically?

Manish Patiyal asked Dec 16, 2024

by Manish Patiyal

8.2k points

1 answer

3 votes

60.1k views

What 2 elements on the Periodic Table may be produced sad reactions?

Sigmund asked Dec 16, 2024

by Sigmund

8.2k points

1 answer

2 votes

39.3k views

What would happen to the dyes in the gel if the chamber were left on all day?

George asked Dec 16, 2024

by George

8.9k points

1 answer

0 votes

170k views

Ethylene glycol is used an automobile antifreeze and in the manufacture of polyester fibers. Combustion of 6.38 mg of ethylene glycol gives 9.06mg carbon dioxide and 5.58mg water. The compound contains

Joelvh asked Dec 16, 2024

by Joelvh

8.9k points

1 answer

0 votes

72.2k views

Write the balanced chemical equations for the complete combustion of acetic acid (CH₃COOH), the main active ingredient in vinegar. Express your answer as a balanced chemical equation. Identify all of the

Simon Ingeson asked Dec 16, 2024

by Simon Ingeson

7.4k points

1 answer

1 vote

135k views

A sample of neon gas collected at a pressure of 584 mm Hg and a temperature of 296 K has a mass of 21.8 grams. The volume of the sample is

Malloc asked Dec 16, 2024

by Malloc

7.3k points

1 answer

4 votes

56.0k views

Which two tests are used to test for proteins and how do they work?

Vartika asked Dec 16, 2024

by Vartika

8.6k points

2 answers

4 votes

6.8k views

How many grams are in 5 mol of O₂?

Araselis asked Dec 16, 2024

by Araselis

8.1k points

2 answers

2 votes

124k views

Ozone decomposes to form oxygen molecules and oxygen atoms, 03(g) -› 02(g) + O(g), in the upper atmosphere. The energy of activation for this reaction is 93.1 kJ/mol. At 600 K, the rate constant for this

Chris Conlan asked Dec 16, 2024

by Chris Conlan

7.7k points

1 answer

1 vote

152k views

What volume of hydrogen can be collected over water at 25°C and 753 torr if 10.0g of zinc is treated with excess hydrochloric acid? A) 0.84 L B) 0.47 L C) 1.14 L D) 0.62 L

SheerSt asked Dec 16, 2024

by SheerSt

8.7k points

1 answer

5 votes

179k views

Which molecule listed below is a polar molecule? a. NH3 b. H2O c. HCN d. all of the compounds e. none of the compounds

Vinayak Bevinakatti asked Dec 16, 2024

by Vinayak Bevinakatti

8.2k points

1 answer

3 votes

151k views

Covalent bonds Ionic Bonds Type of elements that make up the bond. Share or Steal electrons? Properties of the compound that is formed Strong or Weak Bond State of matter of bond Examples a) Covalent bonds

Juboraj Sarker asked Dec 15, 2024

by Juboraj Sarker

8.6k points

1 answer

4 votes

129k views

Why is that in Thompsons model of atom the mass of atom is due to electrons only.

PEHLAJ asked Dec 15, 2024

by PEHLAJ

8.6k points

2 answers

4 votes

119k views

Please name the following compounds using the stock system: N₂O3, CO, SO3- (NOTE: Please list the stock system names in the same order as the list above, from left to right.)

Linus Kleen asked Dec 15, 2024

by Linus Kleen

8.4k points

1 answer

4 votes

192k views

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