Recent questions in Chemistry

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Balance the chemical reaction by adding the correct coefficients. A. 2 B. 3 C. 4 D. 5

SchizoDuckie asked Dec 27, 2024

by SchizoDuckie

8.4k points

1 answer

5 votes

112k views

Determining the Formula of an Unknown Hydrate Experiment 6 A. Identification of True Hydrates Compound Color of solution before heating Water droplets after heating (Yes/No) Color of the residue after

Feifei asked Dec 27, 2024

by Feifei

7.5k points

1 answer

1 vote

11.8k views

Which expression is equivalent to 36x² −25? A) (18x)² + (-5)² B) (18x)²-(5)² C) both a and b D) none of the above

JayCrossler asked Dec 27, 2024

by JayCrossler

8.6k points

1 answer

0 votes

93.8k views

Certain of first-order reaction is 34.5% complete in 49 min at 298 K. What is its rate constant?

Martijn Burger asked Dec 27, 2024

by Martijn Burger

8.7k points

1 answer

1 vote

173k views

How many moles of sodium chloride can be obtained from 2 moles of sodium and 4 moles of chlorine?

Lisachenko asked Dec 27, 2024

by Lisachenko

8.3k points

1 answer

5 votes

210k views

What is the mass of one molecule of the antibiotic known as penicillin v?

BrickByBrick asked Dec 27, 2024

by BrickByBrick

8.2k points

1 answer

1 vote

129k views

Polysulfide rubber (mercaptan) composition, the accelerator paste contains ___.

Ofek Hod asked Dec 27, 2024

by Ofek Hod

8.1k points

1 answer

1 vote

77.7k views

What technology is used in a radioactive iodine uptake test? a. computed tomography b. magnetic resonance imaging c. x-ray imaging d. gamma camera

Worakarn Isaratham asked Dec 27, 2024

by Worakarn Isaratham

7.3k points

1 answer

4 votes

225k views

For the list of hydrocarbons, rank the hydrocarbons in strength from weakest acid to strongest acid? 1) Methane, Ethane, Propane 2) Propane, Ethane, Methane 3) Ethane, Methane, Propane 4) Methane, Propane,

Vrepsys asked Dec 27, 2024

by Vrepsys

8.3k points

1 answer

1 vote

101k views

Distilled water in equilibrium with air contains dissolved carbon dioxide at a concentration of 1.0 x 10^-5 M. Calculate the pH of such a solution.

Bhb asked Dec 27, 2024

by Bhb

7.5k points

1 answer

3 votes

205k views

19. How many mL of 1.50 M NaOH is required to neutralize 275 ml of 0.5 M H₂SO4?

Audiomason asked Dec 27, 2024

by Audiomason

8.2k points

1 answer

5 votes

218k views

What is the slope-intercept form of the equation for the line represented by the equation y = 5x + 8? A) y = 5x + 8 B) y = 5x + 2 C) y = 2x + 8 D) y = 8x + 5

Lionell asked Dec 27, 2024

by Lionell

7.9k points

1 answer

5 votes

73.7k views

A solution contains 2.0 × 10-13M of H+ ions. What is the pH of the solution?

Tinggo asked Dec 27, 2024

by Tinggo

7.7k points

2 answers

4 votes

13.8k views

Which two substances are among the six most abundant elements in living things? A. Potassium B. Sodium C. Phosphorus D. Oxygen

Naitan asked Dec 27, 2024

by Naitan

8.3k points

1 answer

2 votes

203k views

How many significant figures

Haseena Parkar asked Dec 27, 2024

by Haseena Parkar

8.5k points

1 answer

2 votes

97.4k views

3-bromo-1-butene and 1-bromo-2-butene undergo sn1 reaction at nearly the same rate, even though one is a secondary halide and the other is primary. explain.

Sergio Abreu asked Dec 27, 2024

by Sergio Abreu

7.9k points

1 answer

3 votes

15.6k views

There is a structure of a benzene ring with a –CH2CHO group attached. The –O atom of the –CH2CHO group is attached by a double bond. Draw the condensed structural or line-angle formula for the alcohol

William Sham asked Dec 27, 2024

by William Sham

8.1k points

1 answer

0 votes

87.5k views

What is the Born-Haber cycle? List each step in the cycle and show how the cycle is used to calculate lattice energy. a) Energy diagram for ionic compounds b) Series of chemical reactions for bond formation

Pointum asked Dec 27, 2024

by Pointum

7.7k points

1 answer

4 votes

161k views

I am unable to share the image, so sorry; but can you tell me which is the correct name from these 2 of the same compound. 3-(1-chloromethyl)-2-(1-methylethyl)-pentan-1-ol or 4-chloro-3-ethyl-2-(1-methylethyl)-butan-1-ol

Nutel asked Dec 27, 2024

by Nutel

7.7k points

1 answer

5 votes

94.7k views

How many grams of KOH are present in 125.0 ml of a 5.75 M solution

Zion Ben Yacov asked Dec 27, 2024

by Zion Ben Yacov

7.6k points

1 answer

4 votes

101k views

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