Recent questions in Chemistry

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The rate of spontaneous nuclear decay: A) can be increased by the addition of a nuclear catalyst. B) can be increased by increasing the concentration of the radioactive element. C) is independent of concentration

Ricardo Ferreira asked Dec 25, 2024

by Ricardo Ferreira

7.7k points

1 answer

0 votes

22.5k views

What is the reference range and critical values for POTASSIUM?

Mohamedrias asked Dec 25, 2024

by Mohamedrias

8.1k points

1 answer

0 votes

220k views

True or false? Simple molecular substances never contain metals.

Shnizlon asked Dec 25, 2024

by Shnizlon

8.6k points

2 answers

3 votes

70.2k views

Which of the following statements correctly describes the hydrogen ion-hydroxide ion balance in the given solutions?

Nevada Williford asked Dec 25, 2024

by Nevada Williford

7.6k points

1 answer

5 votes

175k views

"What element has the noble gas electron configuration [Kr]5s-4d105p)

Yazazzello asked Dec 25, 2024

by Yazazzello

8.5k points

1 answer

5 votes

113k views

When plates are turned upside down, what potential issue may arise due to melted agar? A. Colony Mismatch B. Spillage Hazard C. Uneven Heating D. Contaminant Growth

FLab asked Dec 25, 2024

by FLab

7.1k points

1 answer

2 votes

148k views

Which of the following statements shows how to calculate the reference angle for theta equals 11 pi over 6? A. Pi - 0 B. 0 - pi C. pi - 0

Juanchopanza asked Dec 25, 2024

by Juanchopanza

8.2k points

1 answer

2 votes

64.8k views

Excess oil production that causes redness, flakiness, and irritation is a condition known as A) Hypopigmentation B) Eczema C) Rosacea D) Psoriasis

Max Caceres asked Dec 25, 2024

by Max Caceres

6.9k points

1 answer

1 vote

73.2k views

What is the name of proper organic molecules

JR Lawhorne asked Dec 25, 2024

by JR Lawhorne

7.5k points

1 answer

2 votes

71.3k views

What is the mass of carbon present in 0.5 mole of sucrose? a) 6 grams b) 12 grams c) 24 grams d) 36 grams

Jogshardik asked Dec 25, 2024

by Jogshardik

7.8k points

1 answer

0 votes

203k views

Recrystallizing an anhydride (such as the product of this reaction) from water or from an alcohol is rarely a good idea.

Antred asked Dec 25, 2024

by Antred

8.4k points

1 answer

2 votes

41.2k views

Which of the following statements correctly describes the relationship between principal energy levels of an electron and the principal quantum number? 1) Energy levels have no relationship to principal

Alexander Sigachov asked Dec 25, 2024

by Alexander Sigachov

7.2k points

1 answer

2 votes

192k views

Chlorine should be ____ in a pool and _____ in a wading pool or spa

Julien Arzul asked Dec 25, 2024

by Julien Arzul

7.7k points

1 answer

3 votes

179k views

How much sodium acetate stock and sodium chloride stock are used? A) 28.3 mL of sodium acetate stock and 20 mL of sodium chloride stock. B) 27 mL of sodium acetate stock and 12.5 mL of sodium chloride

Douglasr asked Dec 25, 2024

by Douglasr

7.9k points

1 answer

1 vote

44.1k views

Which two of the following are common methods to inhibit sugar crystallization in non-crystalline candy making

Ben Hamilton asked Dec 25, 2024

by Ben Hamilton

8.2k points

1 answer

5 votes

211k views

Calculate to the correct number of sig figs. A) (24.6681 x 2.38) + 332.58 B) (85.3 - 21.489) x 0.0059 C) (512/986.7) + 5.44 D) [(28.7 x 10⁵)/48.533] + 144.99

David Gonzalez asked Dec 25, 2024

by David Gonzalez

7.8k points

1 answer

5 votes

194k views

Two important things to remember while using a thermotor

Terance asked Dec 25, 2024

by Terance

8.4k points

2 answers

4 votes

69.7k views

What is the correct name for the compound Ni₂CO₃? a) Nickel(II) oxide b) Dinickel trioxide c) Nickel trioxide d) Nickel (III) oxide

Dave Martin asked Dec 25, 2024

by Dave Martin

7.6k points

1 answer

0 votes

169k views

Carbon monoxide reacts with hydrogen to form methanol. CO undergoes? 1) oxidation 2) reduction 3) neither

WiRa asked Dec 25, 2024

by WiRa

7.2k points

1 answer

3 votes

38.9k views

Frozen Carbon Dioxide, also referred to dry ice, can go from being a solid to a gas. What is this phase change called? a) Deposition b) Vaporization c) Condensation d) Sublimation

Morphasis asked Dec 25, 2024

by Morphasis

7.8k points

1 answer

4 votes

210k views

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