Recent questions in Chemistry

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Why is citric acid added to food? O to add color Oto add tartness Oto add bitterness Oto add sweetness

Ed Burnette asked Dec 22, 2024

by Ed Burnette

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1 answer

1 vote

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Which of the following diagrams represents a single displacement (replacement) reaction?

Berlin Brown asked Dec 22, 2024

by Berlin Brown

8.2k points

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5 votes

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The aspirin substitute, acetaminophen (C₈H₉O₂N), is produced by the following three-step synthesis: I. C₆H₅O₃N(s)+ 3H₂(g)+ HCl(aq) ⟶ C₆H₈ONCl(s) + 2H₂O (l) II. C₆H₈ONCl(s)+ NaOH(aq) ⟶ C₆H₇ON(s) +H₂O(l)

Kohloth asked Dec 22, 2024

by Kohloth

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1 answer

1 vote

104k views

What is the square root of 20?

Lab Lab asked Dec 22, 2024

by Lab Lab

7.7k points

1 answer

4 votes

215k views

Dispenser reservoirs should be sanitized with a solution containing _______ of ______.

Writwick asked Dec 22, 2024

by Writwick

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4 votes

112k views

Which choice is not a macromolecule? a. Proteins b. Carbohydrates c. Metals d. Plastics

Janne Tuukkanen asked Dec 22, 2024

by Janne Tuukkanen

7.8k points

1 answer

3 votes

68.4k views

A mass spectrum reveals that a molecule has a (M)+ peak at m/z=196 and its relative abundance is 27.2% The (M+1)+ peak is 3.9% abundant. Calculate the number of carbon atoms in the molecule

Frederic Perron asked Dec 22, 2024

by Frederic Perron

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1 answer

4 votes

116k views

Is light a particle or a wave? Help me with this question pls 1. BOTH particle and wave 2. Wave 3. Particle 4. Neither a particle nor a wave

Kinstephen asked Dec 22, 2024

by Kinstephen

7.7k points

1 answer

1 vote

146k views

Which of the following would you find as part of the "R" group of a nonpolar amino acid? -NH₂ -PO₄ -CH₃ -COOH -OH

Techgnosis asked Dec 22, 2024

by Techgnosis

8.4k points

1 answer

0 votes

4.3k views

What are the characteristics of a gas?

Mohammadreza Khedri asked Dec 22, 2024

by Mohammadreza Khedri

8.4k points

1 answer

2 votes

101k views

Define translation, rotation, and vibration.

Richard Harrison asked Dec 22, 2024

by Richard Harrison

8.0k points

1 answer

2 votes

90.2k views

which of the following alkenes would afford a meso compound as the major product when treated with br 2 in ch2cl2? question 8 options: d only b and c only a, b, and c only a only c only b only a and b

Rob Willis asked Dec 22, 2024

by Rob Willis

9.2k points

1 answer

1 vote

88.8k views

689 to complete a task in 16 days a company needs 5 people each working for 6 hours per day. the company decides to have 8 people each working for 4 hours per day. assuming that each person works at the

Wkampmann asked Dec 22, 2024

by Wkampmann

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2 votes

84.4k views

What type of bond is sulfur and nitrogen?

Dan Atkinson asked Dec 22, 2024

by Dan Atkinson

8.6k points

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2 votes

111k views

What is the freezing point depression of a solvent when 15.5 grams of glucose (C₆H₁₂O₆) are dissolved in 245 grams of water, considering the freezing point constant as -1.86 °C/m? a) 0.1 °C b) 1.0 °C c)

Taji asked Dec 22, 2024

by Taji

7.3k points

1 answer

2 votes

88.2k views

Supercoling relies on topoisomerases which are?

Duyuanchao asked Dec 22, 2024

by Duyuanchao

8.1k points

1 answer

5 votes

139k views

The heating curve shows the energy gain of a substance as it changes from solid to gas. Which section of the graph shows the liquid phase of the substance gaining kinetic energy?

Sola Oderinde asked Dec 22, 2024

by Sola Oderinde

8.1k points

1 answer

4 votes

21.8k views

Regarding the cohesion and adhesion of molecules, predict which drops are roundest and explain your reasoning.

Loredra L asked Dec 22, 2024

by Loredra L

8.4k points

1 answer

0 votes

53.0k views

2.3456 g of Mohr's salt, (NH₄)₂Fe(SO₄)₂∙6H₂O, dissolves in water to make 250.0 ml of solution. What is the molarity of the sulfate ion in the solution? a. 0.01 M b. 0.02 M c. 0.03 M d. 0.04 M

Chris Blackwell asked Dec 22, 2024

by Chris Blackwell

8.6k points

1 answer

4 votes

94.0k views

What follows peak fitness in early adulthood? A) Gradual decline in physical fitness B) Sudden decrease in physical activity C) Stable fitness levels D) Increased muscle mass

Tina Nyaa asked Dec 22, 2024

by Tina Nyaa

8.0k points

1 answer

3 votes

115k views

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