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Which of the following amino acids is a polar amino acid (there is only one in this list)? a. glutamic acid b. valine c. glycine d. tryptophan e. proline

Ricree asked Oct 13, 2024

by Ricree

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1 answer

1 vote

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A NaOH solution of unknown concentration is titrated with 0.525 M HCl. 36.78 mL of the titrant is required to titrate 25.0 mL of the NaOH solution. What is the concentration of the NaOH solution.

David Aleksanyan asked Oct 13, 2024

by David Aleksanyan

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1 answer

2 votes

203k views

A piece of iron ore is found to contain a compound containing 72.3% iron and 27.7% oxygen with a molecular mass of 231.4 g/mol. What is the molecular formula of the compound

Iskandar Najmuddin asked Oct 13, 2024

by Iskandar Najmuddin

8.7k points

1 answer

5 votes

81.4k views

What powder is composed of black carbon or charcoal and applied to white or light-colored surfaces?

Nickang asked Oct 13, 2024

by Nickang

8.4k points

1 answer

1 vote

136k views

2. Which one of the following is most likely to be an ionic compound? A) ClF3 B) FeCl3 C) NH3 D) PF3 E) SO3

Isaacparrot asked Oct 13, 2024

by Isaacparrot

9.0k points

1 answer

3 votes

120k views

List 8 ways to mix or combine 2 ingredients.

Zhangqy asked Oct 13, 2024

by Zhangqy

8.0k points

1 answer

1 vote

151k views

what trend do you notice for electronegativity down a family? explain the reason for this trend in 2-3 sentences.

Danielcorreia asked Oct 13, 2024

by Danielcorreia

7.3k points

1 answer

1 vote

167k views

How many moles of iron are there in each of the following? 1.10 moles of feo

Gustavo Cardoso asked Oct 13, 2024

by Gustavo Cardoso

7.8k points

1 answer

1 vote

29.5k views

Show that the positive and negative charges in a unit of Al₂O₃ equals zero.

Thunderforge asked Oct 13, 2024

by Thunderforge

7.9k points

1 answer

0 votes

134k views

How many moles of bicarbonate ions, aluminum ions, and oxygen atoms are present in 66.0 g aluminum bicarbonate?

Manav Chhibber asked Oct 13, 2024

by Manav Chhibber

8.2k points

1 answer

0 votes

117k views

When the following equation is balanced properly under acidic conditions, what are the coefficients of the species shown?NO + ClO3-NO3- + Cl2Water appears in the balanced equation as a (reactant, product,

Nitwit asked Oct 13, 2024

by Nitwit

8.3k points

2 answers

3 votes

217k views

Trial 1 2 3 height(cm) 6.50 6.45 6.44 diameter(cm) 1.25 1.26 1.23 mass(g) 46.83 46.332 47.014 1.calculate the average densityof the bar.

Tunglt asked Oct 13, 2024

by Tunglt

8.3k points

1 answer

2 votes

170k views

3. What is a physical change?

Thunderboltz asked Oct 13, 2024

by Thunderboltz

8.8k points

1 answer

5 votes

70.0k views

What is one benefit of recycling? A) It increases the volume of solid waste. B) It prevents materials from biodegrading. C) It conserves resources and energy. D) It uses more raw materials that need to

Amerzilla asked Oct 13, 2024

by Amerzilla

8.5k points

1 answer

2 votes

105k views

a 50.00 ml sample of 0.250 m solution of ammonium carbonate is mixed with 60.0 ml of a 0.300 m silver nitrate solution. you will use this information for the next several problems. how many grams of precipitate

Evan Meagher asked Oct 13, 2024

by Evan Meagher

7.2k points

1 answer

4 votes

211k views

How many valence electrons does arsenic, with atomic number 33, possess?

Kyle Venn asked Oct 13, 2024

by Kyle Venn

7.8k points

1 answer

2 votes

38.8k views

What group on the periodic table where all of the elements only need 1 electrons in their outer to shells to satisfy their octet ?

Ryan McCarron asked Oct 13, 2024

by Ryan McCarron

7.9k points

1 answer

0 votes

129k views

A chemical reaction occurring in a cylinder equipped with a movable piston produces 0.621 mol of a gaseous product. If the cylinder contains 0.120 mol of gas before the reaction and has an initial volume

Trss asked Oct 13, 2024

by Trss

8.4k points

2 answers

2 votes

77.0k views

the density of a gas was found to be 2.0 g/l at 1.50 atm and 270c. what is the density of this gas at stp?

Fceller asked Oct 13, 2024

by Fceller

7.7k points

1 answer

1 vote

50.3k views

Gaseous carbon dioxide is partially decomposed according to the following equation. 2 Co,(g2CO+O (g) An initial pressure of 1 .00 atm of CO, is placed in a closed container at 2500 K, and 2.10% of the

Romario asked Oct 13, 2024

by Romario

8.9k points

1 answer

4 votes

44.3k views

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