Recent questions in Chemistry

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How many moles of NO2 form when 54g N2O5 decompose (N2O5; 108 g/mol)

Understack asked Dec 25, 2024

by Understack

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1 answer

5 votes

49.0k views

Find the grams in 1.26 x 10-4 mol of HC2H3O2.

Cira asked Dec 25, 2024

by Cira

8.7k points

1 answer

4 votes

15.9k views

What occurs during the conditioning phase of steam sterilizers?

Zack Graber asked Dec 25, 2024

by Zack Graber

8.7k points

1 answer

3 votes

126k views

Which reaction is a neutralisation reaction?

Lureen asked Dec 25, 2024

by Lureen

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1 answer

0 votes

70.4k views

Barium oxide reacts with water to form aqueous barium hydroxide. Write the word equation and the chemical equation for this reaction.

GSD asked Dec 25, 2024

by GSD

8.1k points

1 answer

5 votes

223k views

Write the empirical formula for the compound K2C₂O₄.

Allan Jebaraj asked Dec 25, 2024

by Allan Jebaraj

8.8k points

1 answer

3 votes

164k views

The active ingredient in photographic fixer solution contains sodium, sulfur, and oxygen. Analysis of a sample shows that the sample contains 1.358 g Na, 1.911 g S, and 1.429 g O. What is the empirical

Groxan asked Dec 25, 2024

by Groxan

7.3k points

1 answer

2 votes

149k views

If a solution contains 3.458 moles of CuCl₂ in 1.500 L, what is the solution's molarity?

Maviz asked Dec 25, 2024

by Maviz

8.6k points

2 answers

3 votes

72.7k views

I need to run an experiment on the effect of temperature on refractive index of a liquid, and in order to make the change most visible and have the lowest percent uncertainty I need the change in refractive

Bowecho asked Dec 25, 2024

by Bowecho

8.0k points

1 answer

4 votes

213k views

Draw the Lewis structure for the following symbol and predict the compound N + Ba:

Val Bakhtin asked Dec 25, 2024

by Val Bakhtin

8.0k points

1 answer

3 votes

18.8k views

Why does the octet rule not hold for many compounds containing elements in the third period of the periodic table and beyond? What makes them different from the elements in periods above them? What subshell

Moshe asked Dec 25, 2024

by Moshe

7.9k points

1 answer

3 votes

145k views

Choose the answer with the name and formula that do NOT match. 1. KSCN : potassium sulfocyanide 2. HIO3 iodic acid 3. Cr₂(SO4)3 chromium(III) sulfate 4. (NH4)2CO3 : ammonium carbonate 5. FeCl₂ iron(II)

Octaviour asked Dec 25, 2024

by Octaviour

9.2k points

1 answer

1 vote

173k views

The pH range for normal urine is: a. 2.5 to 4.5 b. 2.5 to 7.0 c. 4.5 to 8.0 d. 0 to 9.0 e. 7.5 to 9.0

Taudep asked Dec 25, 2024

by Taudep

7.9k points

1 answer

2 votes

216k views

Glucose is a smaller molecule than starch? a)true b)false

Imarban asked Dec 25, 2024

by Imarban

7.8k points

1 answer

2 votes

84.0k views

When a 30.98-g sample of phosphorus reacts with oxygen, a 71.00-g sample of phosphorus oxide is formed. a. What is the percent composition of the compound? b. What is the empirical formula for this compound?

PiotrG asked Dec 25, 2024

by PiotrG

8.0k points

1 answer

0 votes

126k views

Compare the periodic trends of atomic radii and state the reasons for these variations a) Atomic radii decrease across a period due to increased nuclear charge. b) Atomic radii decrease down a group due

John Nguyen asked Dec 25, 2024

by John Nguyen

8.3k points

1 answer

4 votes

161k views

When the terms of a polynomial are ordered from highest to lowest degree is known as___________.

Villasv asked Dec 25, 2024

by Villasv

8.3k points

1 answer

5 votes

173k views

How many moles of carbon (C) are present in 0.692 moles of benadryl?

Mattgabor asked Dec 25, 2024

by Mattgabor

7.5k points

1 answer

5 votes

170k views

A potato has a volume of 800 cubic centimeters and a mass of 400 grams. Calculate its density. Write your answer to the tenths place. a. 0.5 g/cm³ b. 0.6 g/cm³ c. 0.7 g/cm³ d. 0.8 g/cm³

Benkerroum Mohamed asked Dec 25, 2024

by Benkerroum Mohamed

8.8k points

1 answer

0 votes

28.2k views

Order the three types of intermolecular forces (dipole-dipole, London force, hydrogen bonds) in order from weakest to strongest. - london forces - dipole-dipole forces - hydrogen bonds

Ilyse asked Dec 25, 2024

by Ilyse

7.6k points

1 answer

3 votes

206k views

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