Recent questions in Chemistry

Question

Calculate the mass of .00566 mol of germanium, show work.

Tommy Hui asked Dec 22, 2024

by Tommy Hui

8.4k points

1 answer

4 votes

169k views

Why must you open taps in separatory funnel?

Gorpik asked Dec 22, 2024

by Gorpik

8.7k points

1 answer

4 votes

39.9k views

Name a property of gas that do not share with liquid

Jonathan DeCarlo asked Dec 22, 2024

by Jonathan DeCarlo

9.2k points

1 answer

3 votes

149k views

What is resonance effect?

Ula Krukar asked Dec 22, 2024

by Ula Krukar

8.0k points

1 answer

1 vote

196k views

33.153g+3.2g+8.70g but with the allowed significant digits

Malcomio asked Dec 22, 2024

by Malcomio

8.1k points

1 answer

0 votes

161k views

If 45 Ml of a 6.5 M solution of HNO3 is added to 55 ml of water what is the new concentration?

Freeek asked Dec 22, 2024

by Freeek

7.9k points

1 answer

2 votes

10.7k views

Which of the following statements is correct with respect to the photosynthetic pathway of grass or a cactus? A. In a cactus, carbon is fixed only during the day. B. In grass, carbon is fixed only during

Nikolay Fominyh asked Dec 22, 2024

by Nikolay Fominyh

7.9k points

1 answer

0 votes

204k views

Using a scale of 1 to 4, place the molecules in order from least (1) to most complex (4): polypeptide amino acid protein peptide

Wangchi asked Dec 22, 2024

by Wangchi

7.6k points

1 answer

0 votes

99.3k views

True/false. an electron remains in an excited state of an atom for typically 10−8s.

Dcg asked Dec 22, 2024

by Dcg

7.6k points

1 answer

0 votes

126k views

I have the following Hamiltonian describing two spin 1/2 systems, represented by the pauli matrices σ1 and σ2: H=Dσ1z+J(σ1⋅σ2) The two spins are coupled by J but at the same time the first spin σ1 is also

Stephanie Page asked Dec 22, 2024

by Stephanie Page

7.8k points

1 answer

4 votes

11.7k views

in order to identify a mineral, it is necessary to determine its chemical composition. a.true b.false

Jeff Ward asked Dec 22, 2024

by Jeff Ward

8.4k points

1 answer

5 votes

105k views

Does magnesium phosphate only contain ionic bonds? a. Yes b. No

ChiralMichael asked Dec 22, 2024

by ChiralMichael

7.7k points

1 answer

3 votes

185k views

Determine the percent yield for the reaction between 3.74g of Na and excess O2 if 5.34g of Na2O2 is recovered?

CEPA asked Dec 22, 2024

by CEPA

8.2k points

1 answer

2 votes

218k views

Balance the following reaction: Zn+HCl→ZnCl₂+H₂ . a) Zn + 2HCl → ZnCl₂ + H₂ b) Zn + HCl → ZnCl₂ + 2H₂ c) 2Zn + HCl → ZnCl₂ + H₂ d) Zn + 3HCl → ZnCl_2 + H_2

Fuad asked Dec 22, 2024

by Fuad

8.0k points

1 answer

3 votes

183k views

If you have 620 grams of HNO3 and excess Na2CO3: A. Determine the limiting reactant in the reaction. B. Calculate the theoretical yield of the product. C. Analyze the stoichiometry of the reaction. D.

Eric Wright asked Dec 22, 2024

by Eric Wright

8.1k points

1 answer

3 votes

88.8k views

A 1. 000g sample of lead metal reacted with oxygen gas to give 1. 154g of product. Calculate the empirical formula of the lead oxide

Endama asked Dec 22, 2024

by Endama

8.8k points

1 answer

4 votes

25.3k views

Write the name of the alkene next to the drawing of the molecule. Names include: 1-pentene, trans-2-pentene, cis-2-pentene, 1-propene, trans-2-butene, cis-2-butene (2 points) A) 1-Pentene B) Trans-2-Pentene

Josias asked Dec 22, 2024

by Josias

7.7k points

1 answer

2 votes

116k views

The second step in the Jendrassik-Grof method for total bilirubin analysis reacts azobilirubin with what in order to get azobilirubin measured at 600 nm?

Florin Mogos asked Dec 22, 2024

by Florin Mogos

8.2k points

1 answer

0 votes

233k views

How do you Calculate the Gram Atomic Weight of a compound or molecule? a) By adding the atomic weights of all the atoms in the compound. b) By multiplying the atomic weight by the number of atoms in the

Touchmarine asked Dec 22, 2024

by Touchmarine

8.3k points

1 answer

4 votes

62.0k views

Exposure to gamma radiation can be decreased by completing which of the following actions?a) Wearing thick clothesb) Providing distance from radiation sourcec) Lengthening time of exposured) Providing

JSWork asked Dec 22, 2024

by JSWork

8.7k points

1 answer

5 votes

44.7k views

Page:

« prev
1
...
69
70
71
72
73
74
75
...
1000
...
next »

Ask a Question

Recent questions in Chemistry

Other Questions