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Chemistry Questions and Answers (Q&A)

Regentschemistry
Answered: Jan 17, 2021
Sucrose is a polar molecule, like water is, while octane is a nonpolar molecule. Since sucrose and water have the same molecular polarities, based on "like dissolves like", sucrose will dissolve in...Read More

1 Answer

282 views
H. Jones, Web Content Writer
Answered: Aug 23, 2018
A solvent is a substance that does the dissolving. For instance, water is a solvent. You can dissolve different things in it. They usually dissolve with a solute to form a solution. Different...Read More

3 Answers

281 views
John Smith
Answered: Jan 17, 2021
The metal with the lower heat capacity would undergo a higher temperature change.

Heat capacity and temperature change have an indirect relationship.

1 Answer

281 views
Johnson
Answered: Nov 06, 2017
Buffers are important in living things because they regulate the pH of various areas in the organism, allowing for optimal pH for favourable biological reactions (and sometimes non-optimal pH to...Read More

2 Answers

279 views
Manolok
Answered: Jan 17, 2021
None of the above

The subscript is the number which follows the element, it will indicate how many molecules are in that compound, no subscript following the element indicates just one atom...Read More

1 Answer

278 views
Samantha Stewart, Philanthropist
Answered: Aug 22, 2019
Penetrance and expressivity both have to do with genetics in science. They are used when analyzing genetics. Both the penetrance and the expressivity have to do with gene expression and are...Read More

2 Answers

275 views
Ryanbecker
Answered: Jan 17, 2021
All of the above are true

1 Answer

272 views
Acalinawan
Answered: Jul 11, 2017
Salinity is a moderate concentration of salt dissolved in waterThe sequence is as follows fresh, brackish, saline, brine. Removal of salinity may be accomplished by salt water purifier. This is...Read More

2 Answers

271 views
Regentschemistry
Answered: Jan 17, 2021
Nonpolar molecule, symmetrical distribution of charge

Polar Molecules=Less than 2 lines of symmetry, asymmetrical distribution of charge and asymmetrical shape. Nonpolar Molecules=2 or...Read More

1 Answer

266 views
Anthony Paul Bonadio, Teacher
Answered: Jun 18, 2019
Actinides are known to be radioactive elements. Lanthanides are known to be non-radioactive elements, but there are some exceptions. This is not the only difference between the two. Actinides are...Read More

1 Answer

265 views
Kwchiro
Answered: Jan 17, 2021
Add 18.16 grams of LiF with enough distilled water to make 1 Liter of solution.

FInd the molar mass of LiF (look on periodic table). since a 0.7 M solution is required, multiply the molar...Read More

1 Answer

263 views
Ryanbecker
Answered: Jan 17, 2021
It is most stable as a positively charged ion

1 Answer

263 views
John Smith
Answered: Jan 17, 2021
Spray or pour water on the eye

1 Answer

257 views
Bobby Rickets, Content Reviewer
Answered: Jun 24, 2019
Lyophilic and lyophobic are terms which explain the reaction of some solvents with water. There are some solvents which completely dissolve in water and there are still some that do not dissolve...Read More

1 Answer

256 views
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