Recent questions in Chemistry

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What are the stwo tronger interactions between amino acids?

Arnold Veltmann asked Dec 17, 2024

by Arnold Veltmann

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Why does poly(but-1-ene) have a different glass transition temperature than poly(but-2-ene)? a) Different chain length b) Different polymerization process c) Different molecular weight d) Different branching

Ignatov asked Dec 17, 2024

by Ignatov

8.3k points

1 answer

1 vote

220k views

Ions form bonds by ________ electrons. a. taking away. b. sharing. c. giving up. d. both a and b.

BIS Tech asked Dec 17, 2024

by BIS Tech

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5 votes

219k views

Potential types of bacteria that could be observed on school lockers include A) Escherichia coli B) Staphylococcus C) Bacillus subtilis D) Streptococcus.

Bart Friederichs asked Dec 17, 2024

by Bart Friederichs

8.4k points

1 answer

4 votes

121k views

If you refrigerate a sample, how will that affect potassium levels?

Bamcclur asked Dec 17, 2024

by Bamcclur

8.2k points

1 answer

0 votes

113k views

You measured a charge of -25 nc. how many electrons approximately would that correspond to?

Sahil Mahajan Mj asked Dec 17, 2024

by Sahil Mahajan Mj

7.6k points

1 answer

2 votes

159k views

Can someone tell me what the answer is and how to answer this

John Lotacs asked Dec 17, 2024

by John Lotacs

7.6k points

2 answers

4 votes

188k views

Which formulation offers the greatest possibility of dermal (skin) absorption? A. Water-soluble liquids B. Powder formulations C. Oil-soluble formulations D. Granular

Aaron Davidson asked Dec 17, 2024

by Aaron Davidson

8.4k points

1 answer

5 votes

184k views

Which of the following materials will allow sound to travel the fastest? A) water B) lead C) air D) glass

Rhellem asked Dec 17, 2024

by Rhellem

7.5k points

1 answer

5 votes

28.1k views

Which of the following types of common biological molecules are always hydrophobic? a. Proteins b. Fats c. Carbohydrates d. Nucleic acids

Smoove asked Dec 17, 2024

by Smoove

7.5k points

1 answer

2 votes

98.8k views

Draw the Lewis structures for the following diatomic molecules: SeO and O₂.

Yagus asked Dec 17, 2024

by Yagus

8.1k points

1 answer

4 votes

41.4k views

When given t= b2-B2/sb2, it is equivalent to: A) Z-test B) F-test C) T-test D) Chi-square test

KSp asked Dec 17, 2024

by KSp

8.0k points

1 answer

5 votes

231k views

What is the mass of 5.37×1022 Pb atoms?

Hanseh asked Dec 17, 2024

by Hanseh

8.2k points

1 answer

5 votes

159k views

Which of the following would be considered a physical property? A. melting temperature B. boiling temperature C. reactivity towards water D. conductivity E. flexibility

Eyal Abir asked Dec 17, 2024

by Eyal Abir

8.8k points

1 answer

5 votes

130k views

Describe the movement of particles at the melting point of a substance. Consider what is happening with temperature and energy.

OrPo asked Dec 17, 2024

by OrPo

8.6k points

2 answers

4 votes

105k views

The boiling point of an aqueous solution is 101.46 °C. What is the freezing point? Consult the table of colligative constants. freezing point:

Myxtic asked Dec 17, 2024

by Myxtic

7.6k points

1 answer

1 vote

148k views

when you multiply by a mole ratio, the unit of mol does not change. What is the purpose of using the mole ratio?

Boug asked Dec 17, 2024

by Boug

7.5k points

1 answer

3 votes

147k views

I would calculate the number of protons by?

Aboelnour asked Dec 17, 2024

by Aboelnour

8.1k points

1 answer

4 votes

145k views

A 73.0 g sample of an unknown compound contains 12.9 g of hydrogen. What is the percent by mass of hydrogen in the compound? a) 17.7% b) 12.9% c) 73.0% d) 6.5%

Abbas Kararawala asked Dec 17, 2024

by Abbas Kararawala

7.5k points

1 answer

3 votes

104k views

A. Short Answer Give an example of a galvanic cell. What kind of reaction occurs in a galvanic cell? b. Short Answer If one electrode in a galvanic cell is made of zinc (Zn) and one is made of silver (Ag),

Faust asked Dec 17, 2024

by Faust

8.2k points

1 answer

3 votes

87.6k views

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