Recent questions in Chemistry

Question

TABLE 138-1 Laboratory Values for the Previous Visit and for Subsequent Visits "Reverse trarsulplase polymerace clain reaction ascyy.

Shinvu asked Dec 26, 2024

by Shinvu

7.9k points

1 answer

4 votes

95.2k views

You are given two unknown liquids labeled X and Y. You decide to run some experiments to determine what they are. You pour the liquids into separate beakers and begin to heat them up. As the liquids sit

Zvyn asked Dec 26, 2024

by Zvyn

8.4k points

1 answer

0 votes

115k views

Which bunny type (brown or white) has the best camouflage in the desert background?

Kliron asked Dec 26, 2024

by Kliron

7.9k points

1 answer

3 votes

116k views

What defines an amphiprotic species? a) Capable of acting as both an acid and a base b) Capable of conducting electricity c) Always found in aquatic environments d) Inert to chemical reactions

Kunal Chawla asked Dec 26, 2024

by Kunal Chawla

7.3k points

1 answer

3 votes

57.6k views

If a body is in equilibrium under a set of non-collinear forces, then the minimum number of forces has to be: a) 4 b) 2 c) 3 d) 5

Florian Blume asked Dec 26, 2024

by Florian Blume

7.3k points

1 answer

1 vote

170k views

If water diffuses from the 0.1 M solution to the 0.15 M solution, what happens? a) Osmosis occurs b) Reverse osmosis occurs c) The concentrations equalize d) The solution becomes more concentrated

Koralarts asked Dec 26, 2024

by Koralarts

8.0k points

1 answer

1 vote

87.9k views

Complete combustion of 4.70 g of a hydrocarbon produced 15.1 g of CO₂ and 5.15 g of H₂O. What is the empirical formula for the hydrocarbon? Empirical formula:

Ferdau asked Dec 26, 2024

by Ferdau

8.1k points

2 answers

4 votes

228k views

Help what’s the answer?

Offeltoffel asked Dec 26, 2024

by Offeltoffel

8.3k points

1 answer

3 votes

208k views

Calculate ΔHᵣₓₙ for the reaction: CH₄(g)+4Cl₂(g)⟶CCl₄(g)+4HCl(g) using the following information: C(s)+2H₂(g)⟶CH₄(g)ΔH=−74.6kJ C(s)+2Cl₂(g)⟶CCl₄(g)ΔH=−95.7kJ H₂(g)+Cl₂(g)⟶2HCl(g)ΔH=−92.3kJ a. -444.

AndersTornkvist asked Dec 26, 2024

by AndersTornkvist

8.7k points

1 answer

2 votes

89.5k views

Calculate the ph of a solution obtained by mixing 400ml of 0.10M hydrochloric acid with 600ml of 0.10M sodium hydroxide. Assume the combined volume is the sum of the two original volumes

Gozup asked Dec 26, 2024

by Gozup

8.3k points

1 answer

1 vote

205k views

NADH has a strong tendency to: 1) accept electrons 2) donate electrons 3) either donate or accept electrons depending on the electrochemical proton gradient

Milos K asked Dec 26, 2024

by Milos K

8.6k points

1 answer

4 votes

152k views

What is the sum of the given polynomials in standard form? A) 0 B) -3x^2 + 8x - 3 C) x^2 - 2x - 3 D) 3x^2 - 8x + 3 E) -x^2 + 2x - 3

DeepWebMie asked Dec 26, 2024

by DeepWebMie

7.4k points

1 answer

0 votes

74.5k views

Given the reactions: X(s) + 1/2 O2(g) ⟶ XO(s) ΔH = -817.3 kJ XCO3(s) ⟶ XO(s) + CO2(g) ΔH = +491.7 kJ What is the ΔH for the reaction: X(s) + 1/2 O2(g) + CO2(g) ⟶ XCO3(s)

Flovdis asked Dec 26, 2024

by Flovdis

8.1k points

1 answer

5 votes

142k views

What is the atomic number of the element with the noble-gas notation [Kr]5s 1 ? a. 35 b. 36 c. 37 d. 38

RoflcoptrException asked Dec 26, 2024

by RoflcoptrException

7.5k points

1 answer

5 votes

9.2k views

At 900°C, what is the equilibrium constant (Kp) for the reaction CaCO₃(s)? A) 1.09 B) 0.90 C) 2.00 D) 1.00

Maccullt asked Dec 26, 2024

by Maccullt

7.9k points

1 answer

4 votes

47.9k views

Consider the reaction between iodine gas and chlorine gas to form iodine monochloride: I₂(g)+Cl₂(g)?2ICl(g)Kp=81.9 (at 298 K) A reaction mixture at 298 K initially contains PI2=0.35atm and PCI₂=0.35atm

Brandon Schabell asked Dec 26, 2024

by Brandon Schabell

8.2k points

1 answer

3 votes

69.7k views

Quantitative analysis is carried out by a process called a. mass spectrometry b. magnetic spectrometry c. light spectrometry d. component spectrometry

Kevin Pedersen asked Dec 26, 2024

by Kevin Pedersen

7.8k points

1 answer

4 votes

71.9k views

A 0.0300 M NaCl solution was formed when 42.0 grams of NaCl was dissolved in enough water. What was the total volume of the solution formed? 15.7 liters 17.4 liters 21.2 liters 23.9 liters

Yalewzj asked Dec 26, 2024

by Yalewzj

8.2k points

1 answer

4 votes

213k views

If osmolarity goes up, O.P. And H.P. go _________.

Andranik asked Dec 26, 2024

by Andranik

7.6k points

1 answer

5 votes

779 views

Consider the following reaction. 2H2(g) + CO(g) + CH3OH(g) If AH° = 90 kJ for this reaction, which statement is true? a)The reaction is not spontaneous at any temperature. b)The reaction is entropy-driven.

Ceren asked Dec 26, 2024

by Ceren

8.5k points

1 answer

5 votes

129k views

Page:

« prev
1
...
17
18
19
20
21
22
23
...
1000
...
next »

Ask a Question

Recent questions in Chemistry

Other Questions