Recent questions in Chemistry

Question

Effects of acid rain in chemistry

Zeljko Dakic asked Dec 22, 2024

by Zeljko Dakic

7.3k points

1 answer

2 votes

124k views

How precisely could within 5 mL)? each of the apparatus used be read (give number and units, for example, to balance pipet cylinder buret

Reconbot asked Dec 22, 2024

by Reconbot

7.8k points

1 answer

2 votes

181k views

What is the volume of 26 grams of O2 at STP? Show all work.

Max Sorin asked Dec 22, 2024

by Max Sorin

7.8k points

1 answer

3 votes

88.7k views

determine the molarity of phosphoric acid if 20ml acid titrated with 15.9 ml of 0.200 m sodium hyhdroxide

Evgenia asked Dec 22, 2024

by Evgenia

7.6k points

2 answers

1 vote

92.7k views

Which is the correct balanced molecular equation for the reaction of ammonia (NH₃) with nitric acid (HNO₃) in water? a) NH₃(aq) + HNO₃(aq) → NH4NO₃(aq) b) NH₃(aq) + H+(aq) + NO₃-(aq) → NH4+(aq) + NO₃-(aq)

Krystel asked Dec 22, 2024

by Krystel

8.4k points

1 answer

0 votes

40.7k views

Soil applied termiticides are used to prevent termites _________________? A. Swarming B. From tunneling to home C. Nesting D. Reproducing

LoPoBo asked Dec 22, 2024

by LoPoBo

7.8k points

1 answer

2 votes

104k views

Chemistry and Isotopes Four isotopes of lead include lead-204, lead-206, lead-207, and lead-208. The average atomic mass of a lead atom is 207.2 amu. Which isotope of lead is likely to be the most abundant?

Chris Hill asked Dec 22, 2024

by Chris Hill

8.3k points

1 answer

1 vote

50.5k views

Steam reforming of methane (CH₄) produces synthesis gas. What is the pressure equilibrium constant (Kp) at the final temperature, given initial pressures of CH₄ and water vapor? a) 0.028 b) 2.4 c) 0.82

RedPixel asked Dec 22, 2024

by RedPixel

8.5k points

1 answer

0 votes

101k views

A 1 M solution of CaCl2 is an even stronger electrolyte than 1 M NaCl. Why?

Eldon Lesley asked Dec 22, 2024

by Eldon Lesley

8.4k points

1 answer

1 vote

159k views

Which of the following ground-state electron configurations represents the atom that has the lowest first-ionization energy? A) 1⁵² 2s¹ B) 1⁵² 2⁵² 2p² C) 1⁵² 2s²²p⁶ D) 1⁵² 2⁵² 2p⁶ 3⁵¹

Hristo Hristov asked Dec 22, 2024

by Hristo Hristov

8.3k points

1 answer

1 vote

94.4k views

If the pH is less than 5.5, What does it indicate in terms of acidity?

Sotix asked Dec 22, 2024

by Sotix

7.6k points

1 answer

5 votes

116k views

Help please and thank you

Praneetloke asked Dec 22, 2024

by Praneetloke

8.9k points

1 answer

1 vote

177k views

Carbon occurs naturally as____ and____

Daniel Delaney asked Dec 22, 2024

by Daniel Delaney

7.6k points

1 answer

1 vote

32.9k views

How is stereoisomerism different from constitutional isomerism? a. stereoisomers have the same compound with the same chemical name differing only in the direction certain bonds are pointing into space

Tom Sabel asked Dec 22, 2024

by Tom Sabel

8.1k points

1 answer

1 vote

88.8k views

What are the molecules that normally supply carbon and oxygen atoms, respectively, for the citric acid cycle? 1) Oxaloacetate, oxaloacetate 2) Acetyl CoA, O₂ 3) Oxaloacetate, O₂ 4) Acetyl CoA, H₂O 5) Pyruvate,

DanielLC asked Dec 22, 2024

by DanielLC

8.1k points

1 answer

1 vote

196k views

In next week’s experiment, you will use visible spectroscopy to quantitate the amount of colored dyes in a sports drink. Based on this week’s Jove videos, as well as how you made and used a calibration

Simeon Leyzerzon asked Dec 22, 2024

by Simeon Leyzerzon

7.8k points

1 answer

3 votes

37.6k views

When 2.50 g of glucose (C₆H₁₂O₆) burns in air, carbon dioxide gas and liquid water are formed. 38.9 kJ of heat are also liberated. What is the heat flow of the reaction if 95.0 g of glucose are burned?

Rich Schuler asked Dec 22, 2024

by Rich Schuler

8.1k points

1 answer

2 votes

53.3k views

Compared to chemical reactions, most nuclear reactions result in the OA. formation of new compounds OB. formation of new elements O C. formation of new bonds OD. loss of valence electrons

Pushpendra Yadav asked Dec 22, 2024

by Pushpendra Yadav

7.3k points

1 answer

2 votes

196k views

In the context of LS coupling, where total orbital momenta and total spin momenta of electrons are coupled using the Russell-Saunders approximation, the dependence on the positive nucleus charge Z is described

Alexblum asked Dec 22, 2024

by Alexblum

8.2k points

1 answer

0 votes

28.5k views

In which region is the substance in both the solid phase and the liquid phase? a) Triple Point b) Critical Point c) Phase Transition Point d) Equilibrium Point

Sedayux asked Dec 22, 2024

by Sedayux

8.7k points

1 answer

3 votes

109k views

Page:

« prev
1
...
78
79
80
81
82
83
84
...
1000
...
next »

Ask a Question

Recent questions in Chemistry

Other Questions