Recent questions in Chemistry

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What is melting point

Marco Righele asked Dec 22, 2024

by Marco Righele

8.4k points

2 answers

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132k views

In a Bronsted-Lowry acid-base reaction, the original acid becomes a _____ in the reverse reaction. A) Conjugate acid B) Solvent C) Catalyst D) Neutral substance

Shawn Lehner asked Dec 22, 2024

by Shawn Lehner

8.3k points

1 answer

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23.7k views

Calculate the moles of sodium phosphate needed to react completely with 45g grams of calcium chloride.

Vitor Tyburski asked Dec 22, 2024

by Vitor Tyburski

8.0k points

1 answer

1 vote

185k views

A 0.250 g sample of hydrocarbon undergoes complete combustion to produce 0.845 g of CO₂ and 0.173 g of H₂O. What is the empirical formula of this compound?

Krfurlong asked Dec 22, 2024

by Krfurlong

8.2k points

1 answer

0 votes

51.9k views

Explain why this reaction is balanced incorrectly (at least three things) C12H12010 + 702 -> 3C02 + H20

BJ Dela Cruz asked Dec 22, 2024

by BJ Dela Cruz

8.7k points

1 answer

4 votes

225k views

What volume of chlorine gas at STP is equal to 14.5 g of Cl2

Viktor Ivliiev asked Dec 22, 2024

by Viktor Ivliiev

8.5k points

1 answer

3 votes

109k views

Iron, total iron binding capacity (TIBC), percentage saturation of transferrin. A) Coagulation Factors B) Hemostasis Markers C) Iron Studies D) Complete Blood Count (CBC)

Johane asked Dec 22, 2024

by Johane

8.9k points

1 answer

3 votes

3.4k views

chinese religions are ______, meaning that there is not necessarily any conflict in combining several different religious traditions or practices.

Moshe Yamini asked Dec 22, 2024

by Moshe Yamini

8.4k points

1 answer

3 votes

162k views

What causes atoms to react with each other? a. a state change b. a chemical equation

Wonderful World asked Dec 21, 2024

by Wonderful World

8.3k points

1 answer

1 vote

5.9k views

How many days do you have to update an SDS if you are aware of significant new data?

JLamkin asked Dec 21, 2024

by JLamkin

7.9k points

1 answer

0 votes

165k views

The preferred arrangement of electrons in a molecular structure can be determined by calculating the _______ of each atom in the molecule.

Munish Thakur asked Dec 21, 2024

by Munish Thakur

8.6k points

1 answer

2 votes

128k views

Mercury can be isolated from its ore by the reaction: 4 HgS + 4 CaO --> 4 Hg + 3 CaS + CaSO₄ How many moles of CaO are required to react with 97.25 g of HgS?

Shaul Rosenzweig asked Dec 21, 2024

by Shaul Rosenzweig

8.5k points

1 answer

4 votes

15.5k views

The role of a buffer solution is to maintain the pH of a solution by neutralizing large amounts of added acids or bases. This is a true or false question.

Abhy asked Dec 21, 2024

by Abhy

8.4k points

2 answers

1 vote

51.0k views

Where on the periodic table would one expect to find elements that had similar properties ?

SoundsDangerous asked Dec 21, 2024

by SoundsDangerous

7.8k points

1 answer

2 votes

56.9k views

Which description best explains energy transformations when someone eats dinner and then bicycles? A. chemical → electrical → kinetic heat B. electrical → kinetic → potential C. nuclear →electrical→ kinetic

Nikdeapen asked Dec 21, 2024

by Nikdeapen

7.7k points

1 answer

2 votes

103k views

A reaction has a rate constant of 3.76 x 10-6 s-¹ at 362 K and a rate constant of 4.36 x 10² s¹ at 541 K. What is the activation energy for the reaction based on the Arrhenius equation?

Nati asked Dec 21, 2024

by Nati

8.8k points

1 answer

2 votes

13.4k views

Element is most likely to have properties similar to those of a another element in the same period a. noble gas b.element in the same group c. Element in the same period

WhoisAbel asked Dec 21, 2024

by WhoisAbel

7.2k points

1 answer

5 votes

207k views

Explain why an electron in the bonding molecular orbital in the H₂ molecule has a lower energy than an electron in the 1s atomic orbital of either of the separated hydrogen atoms. a) Increased electron-electron

Parth Vora asked Dec 21, 2024

by Parth Vora

8.3k points

1 answer

4 votes

134k views

Whal could account for the difference (if any) between Ihe total mass of sample recovered compared to the original mass of the unknown sample? List three places for possible error.

Arlina asked Dec 21, 2024

by Arlina

7.9k points

1 answer

5 votes

137k views

How many moles of Agl will be formed when 75.0 mL of 0.300 M AgNO, is completely reacted according to the balanced chemical reaction: 2 AgNO3(aq) + Cal₂(aq) - 2 Agl(s) + Ca(NO3)2(aq) PLEASE ANSWER IN THE

Chaliasos asked Dec 21, 2024

by Chaliasos

8.8k points

1 answer

4 votes

121k views

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