Recent questions in Chemistry

Question

The molar mass is the mass of which of the following? (choose all that apply)the g/mol of a substance6.0221 x 10^23 particles of a substancethe mass of a substance per molethe average atmoic mass units

Patrice Pezillier asked Dec 28, 2023

by Patrice Pezillier

4.2k points

1 answer

3 votes

217k views

Identify the number of protons, neutrons, and electrons in the sulfur isotope with atomic number 16 and mass number 32

Chunsheng Wei asked Dec 28, 2023

by Chunsheng Wei

4.0k points

1 answer

5 votes

132k views

A titration experiment can be used to...dilute an acid or basepredict products of a reactiondetermine the strength of an aciddetermine the unknown concentration of acid using a known concentration of base.

Ali Navidi asked Dec 28, 2023

by Ali Navidi

4.3k points

1 answer

0 votes

87.5k views

How many moles of potassium are 5.01 ×10 22 atoms of potassium

Kosuke Ogawa asked Dec 28, 2023

by Kosuke Ogawa

4.2k points

1 answer

3 votes

103k views

You want to go swimming, and the pH of a water in your swimming pool is 7.9. You want it to be between 7.4-7.6. What should you add to the pool to lower its pH? 1. Water 2. Alkali 3. Acid

MrAliB asked Dec 28, 2023

by MrAliB

3.9k points

1 answer

24 votes

111k views

How are density and state of matter related to the physical properties of a substance?

Rmunn asked Dec 28, 2023

by Rmunn

4.2k points

1 answer

18 votes

144k views

(e) Calculate the amount of excess reagent that remains.(1) Calculate the % yield if 6.75 g of iron (Fe) is actually formed.

Lars Fastrup asked Dec 28, 2023

by Lars Fastrup

3.9k points

1 answer

5 votes

99.5k views

What is the shorthand electron configuration for Rn?

Dharita Chokshi asked Dec 28, 2023

by Dharita Chokshi

3.7k points

1 answer

3 votes

125k views

HELP PLEASE!!! I NEED THE HELP Which of the following describes the relationship between producers, consumers, and decomposers and how they keep the food web cycle going? Consumers consume both decomposers

Ckbhodge asked Dec 28, 2023

by Ckbhodge

4.0k points

2 answers

2 votes

249 views

How can glass be a liquid if it's so hard?

Abdelrahman Magraby asked Dec 28, 2023

by Abdelrahman Magraby

3.9k points

2 answers

9 votes

8.4k views

3 moles Li to atoms

Hao Kung asked Dec 28, 2023

by Hao Kung

4.1k points

1 answer

0 votes

153k views

All living things are primarily formed from carbon, explain why this is true

Tjcombos asked Dec 27, 2023

by Tjcombos

4.0k points

1 answer

3 votes

232k views

Which of the following sets of values is correct for Bromine-80 (Br, #35), which has a mass of 80? (1 pt) * 1 point 80 protons, 80 electrons, 80 neutrons, 8 valence electrons 45 protons, 45 electrons,

Sambehera asked Dec 27, 2023

by Sambehera

4.2k points

1 answer

3 votes

192k views

Name two physical properties that could be used to distinguish between water and ethanol.

Elalfer asked Dec 27, 2023

by Elalfer

3.6k points

1 answer

5 votes

105k views

Convert 100.6 Kelvin to degrees C. °C = K - 273 [?] °C

Pkmiec asked Dec 27, 2023

by Pkmiec

3.8k points

1 answer

5 votes

55.4k views

A 82.5 g copper bar was heated to 221.32 oC and placed in a coffee cup calorimeter containing 323.7 mL of water at 22.55oC. The final temperature of the water was recorded to be 26.15oC. How much heat

Hayk Aghabekyan asked Dec 27, 2023

by Hayk Aghabekyan

4.5k points

1 answer

0 votes

52.7k views

Need help with chemistry A piece of metal is heated to a temperature of 95.3°C and place in 117 g water which is initially at a temperature of 21.3° C. The final temperature of the metal and water is 32.

Rosalva asked Dec 27, 2023

by Rosalva

4.1k points

1 answer

0 votes

923 views

What is the molarity of a solution with 13.95 grams of solute and a volume of 400.0 mL? The solute has a molar mass of 273.2 g/mol.

Pradip Karki asked Dec 27, 2023

by Pradip Karki

4.4k points

1 answer

25 votes

5.5k views

Balance the following equations by writing the coefficients in the space provided. Then classify each of the following reactions by writing the name of the type of reaction on the line. Choose from synthesis,

Javonna asked Dec 27, 2023

by Javonna

3.7k points

1 answer

0 votes

59.9k views

Increasing the airplane's speed or wing size does which of the following a) decreases the amount of drag on the plane b) increases the gravitational pull on the pane c) generates more lifting force d)

ISebbeYT asked Dec 27, 2023

by ISebbeYT

4.2k points

2 answers

20 votes

135k views

Page:

« prev
1
...
3
4
5
6
7
8
9
...
1000
...
next »

Ask a Question

Recent questions in Chemistry

Other Questions