Recent questions in Chemistry

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A student described two properties of a substance as shown: Properties of Substance Property C: The substance has a density greater than water. Property D: A substance can be stretched out to become a

Nicorr asked Dec 25, 2024

by Nicorr

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1 answer

2 votes

223k views

Can NO act as oxidizing agent and resuxing agent?

Ultrakorne asked Dec 25, 2024

by Ultrakorne

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1 answer

4 votes

179k views

Which object represents an object with a lot of chemical energy?

Marouen Mhiri asked Dec 25, 2024

by Marouen Mhiri

8.4k points

1 answer

5 votes

103k views

I have a problem with the definition of the standard Gibbs energy and its connection to the equilibrium constants. I think, that I've basically understood what the different equation mean but there is

Weiss asked Dec 25, 2024

by Weiss

7.4k points

1 answer

1 vote

221k views

Why are things like magic, astrology, and psychic predictions not considered science?

Raja asked Dec 25, 2024

by Raja

7.8k points

1 answer

4 votes

235k views

How many grams of NaCl are needed to make 0.4L of a 1.5 M solution

Srayner asked Dec 25, 2024

by Srayner

8.4k points

1 answer

0 votes

124k views

A cereal company's breakfast bars have 150% as much protein as they do sugar. Which equation represents the relationship between the bars' protein content and their sugar content? A. P = S - 1.5 B. P =

AlloVince asked Dec 25, 2024

by AlloVince

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1 answer

5 votes

142k views

For every three sodium molecules that are transported out of the cell in the Na+/K+ pump, _______ molecules of K+ are transported _______.

Ritesh Aryal asked Dec 25, 2024

by Ritesh Aryal

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1 answer

2 votes

19.6k views

Which has the highest boiling point? O He O H₂ O Cl₂ O CH4 O HF

Divinelemon asked Dec 25, 2024

by Divinelemon

8.4k points

1 answer

3 votes

8.1k views

What is the maximum wavelength in nanometers (nm) needed for the ejection of an electron from sodium using the photoelectric effect? A) 444 nm B) 532 nm C) 720 nm D) 856 nm

Jpkeisala asked Dec 25, 2024

by Jpkeisala

7.9k points

1 answer

3 votes

35.2k views

How is the structure of the monosaccharide changed from one form to the other in the human body? a) Through hydrolysis b) Through glycolysis c) Through phosphorylation d) Through deamination

Darrein asked Dec 25, 2024

by Darrein

7.9k points

1 answer

3 votes

93.0k views

Fuels formed by natural processes such as the decomposition of prehistoric organisms are called ____ fuels. A)Synthetic B)Fossil C)Renewable D)Nuclear

Tigerware asked Dec 25, 2024

by Tigerware

8.3k points

1 answer

0 votes

172k views

Surfactants include what 2 parts that remove oils from the hair? A. Hydrophobic part and hydrophilic part B. Acidic part and alkaline part C. Cationic part and anionic part D. Polar part and non-polar

Pitaridis asked Dec 25, 2024

by Pitaridis

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1 vote

191k views

Leon decides that the hummingbirds like a sugar solution that has a concentration of 105 g/L. If Leon makes 4L of this solution, how many grams of sugar should he use? (a) (b) (c) (d) 420 g 26.3 g 420

Beebek asked Dec 25, 2024

by Beebek

8.6k points

1 answer

4 votes

53.7k views

Which of the following alkanes has the slowest reaction rate with Cl2 and light? A. Methane B. Ethane C. Propane D. Butane

ITisha asked Dec 25, 2024

by ITisha

8.6k points

1 answer

3 votes

164k views

Can Steel replace copper in an electrochemical cell? a) Yes, because steel has similar conductivity. b) Yes, but it depends on the specific cell. c) No, because steel does not conduct electricity well.

Mathieugagne asked Dec 25, 2024

by Mathieugagne

7.6k points

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0 votes

221k views

Explain why 2-chloropropene shows signals for three kinds of protons in its 1H NMR spectrum? Draw the structure and predict the approximate values for 1H-NMR spectra.

Roeland Werring asked Dec 25, 2024

by Roeland Werring

7.8k points

1 answer

4 votes

87.5k views

Each package ran through sterilizers should be labeled with what?

Zaius asked Dec 25, 2024

by Zaius

8.3k points

1 answer

5 votes

2.8k views

If an asteroid created enough dust to block out the Sun, what would be the effect on green plants, as well as other life on Earth? Why?

Bacher asked Dec 25, 2024

by Bacher

7.2k points

1 answer

1 vote

165k views

Arrange the elements according to atomic radius ar, mg, al, cl, na, p, s, si

Johnny Five asked Dec 25, 2024

by Johnny Five

7.1k points

1 answer

2 votes

155k views

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