Recent questions in Chemistry

+27 votes

0 answers

Why isn't ammonia air conditioning used more often?

asked Jan 11, 2023 in Chemistry by EightBitMike

+122 votes

0 answers

What is the significance of carbon dioxide levels reaching a 4 million-year high according to NOAA?

asked Jan 11, 2023 in Chemistry by Onthetools

+98 votes

0 answers

10 liters of a mixture contains 20 % alcohol and the rest water. If 3 liters of water be mixed in it, the % of alcohol in the new mixture will be?

asked Jan 11, 2023 in Chemistry by Phil_from_London

+115 votes

0 answers

Why are different indicators used for neutralization reactions between acids and bases?

asked Jan 11, 2023 in Chemistry by John Liu

+29 votes

0 answers

What is the overlap of atomic orbitals in a covalent bond?

asked Jan 11, 2023 in Chemistry by Louie007

+7 votes

0 answers

Is chemistry an important subject for a BSc in nutrition and dietetics? If yes, what are the most important topics I should revise in chemistry since I did not do well in the subject in high school?

asked Jan 11, 2023 in Chemistry by Johnski (2.1k points)

+166 votes

0 answers

When 31.6 g MnxOy is heated with carbon then 13.2 g of CO2 gas is produced, then the formula of MnxOy is?

asked Jan 11, 2023 in Chemistry by Suhayb Manzoor

+15 votes

0 answers

What is the chemical reaction of Fleischmann's yeast?

asked Jan 11, 2023 in Chemistry by Trapper T

+11 votes

0 answers

How would you prepare a 2M sucrose solution?

asked Jan 10, 2023 in Chemistry by SpikeBmth - Hintonhe

+25 votes

0 answers

Do you think the new nanomaterial could make hydrogen production more efficient and cost-effective compared to conventional methods that use electricity in electrolysis?

asked Jan 10, 2023 in Chemistry by ChicoTradesman (3.6k points)

+110 votes

0 answers

Is it true that a gram of uranium is 20 billion calories?

asked Jan 10, 2023 in Chemistry by makaveli

+26 votes

0 answers

What are the physical properties of water and gas?

asked Jan 10, 2023 in Chemistry by SolarisTwilight

+14 votes

0 answers

Is the reaction to form ozone O3 from oxygen O2 spontaneous under standard conditions at 25°C? Delta rH = +95 kJ/mol O2. 3 O2 (g) + 2 O3 (g)?

asked Jan 10, 2023 in Chemistry by katyandreawalker

+325 votes

0 answers

What alternative representations of the chemical "Periodic Table of Elements" do currently exist that are scientifically accepted?

asked Jan 10, 2023 in Chemistry by C Colchester

+14 votes

0 answers

What is the pH of a 1.15 M solution of methanoic acid? Ka = 1.8 x 10^-4

asked Jan 10, 2023 in Chemistry by EmberWhirl

+105 votes

0 answers

What is the molarity of an unknown solution if you know its formula and molality (bulk concentration)?

asked Jan 10, 2023 in Chemistry by l1ndsay

+764 votes

0 answers

How can we separate zinc and copper in a mineral mixture using only physical separation techniques?

asked Jan 10, 2023 in Chemistry by EmberOracle

+272 votes

0 answers

Why do acid base reactions generate heat?

asked Jan 10, 2023 in Chemistry by Marc Berry

+218 votes

0 answers

How are cellulose and chitin similar?

asked Jan 10, 2023 in Chemistry by Dan Greenslade

+19 votes

0 answers

Can we distinguish between sulfur dioxide and hydrogen sulfide by their smell alone if they have very similar formulas (SOS versus HS)?

asked Nov 20, 2022 in Chemistry by bath master

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