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Category: Uncategorized (page 33,150)

Which of these facts about opossums is false?

Posted on: May 26, 2025 Last updated on: November 10, 2025 Written by: Anonymous
Which of these facts about opossums is false?
Continue reading “Which of these facts about opossums is false?”…

Identify one mole of a substance.

Posted on: May 26, 2025 Last updated on: November 10, 2025 Written by: Anonymous
Identify one mole of a substance.
Continue reading “Identify one mole of a substance.”…

You have a cube of copper with an edge length of 4.57 cm. If…

Posted on: May 26, 2025 Last updated on: November 10, 2025 Written by: Anonymous
You have a cube of copper with an edge length of 4.57 cm. If the density of copper is 8.96 g/cm3, what is the mass of the cube in grams?
Continue reading “You have a cube of copper with an edge length of 4.57 cm. If…”…

Which of these facts about opossums is false?

Posted on: May 26, 2025 Last updated on: November 10, 2025 Written by: Anonymous
Which of these facts about opossums is false?
Continue reading “Which of these facts about opossums is false?”…

How many protons (p) and neutrons (n) are in an atom of Sr (…

Posted on: May 26, 2025 Last updated on: November 10, 2025 Written by: Anonymous
How many protons (p) and neutrons (n) are in an atom of Sr (strontium)?
Continue reading “How many protons (p) and neutrons (n) are in an atom of Sr (…”…

The density of mercury is 13.5 g/mL. What is the mass in kg…

Posted on: May 26, 2025 Last updated on: November 10, 2025 Written by: Anonymous
The density of mercury is 13.5 g/mL. What is the mass in kg of mercury that fills a 250 mL flask? Pay attention to units.
Continue reading “The density of mercury is 13.5 g/mL. What is the mass in kg…”…

Boron-9 (9 is the mass number) can be represented as _______…

Posted on: May 26, 2025 Last updated on: November 10, 2025 Written by: Anonymous
Boron-9 (9 is the mass number) can be represented as _____________.
Continue reading “Boron-9 (9 is the mass number) can be represented as _______…”…

How many of the following names are correct? PCl5 potassi…

Posted on: May 26, 2025 Last updated on: May 27, 2025 Written by: Anonymous
How many of the following names are correct? PCl5 potassium pentachloride NaCN sodium cyanide KrF4 krypton tetrafluoride Fe(NO3)2 iron (II) nitrate  
Continue reading “How many of the following names are correct? PCl5 potassi…”…

Identify one mole of a substance.

Posted on: May 26, 2025 Last updated on: November 10, 2025 Written by: Anonymous
Identify one mole of a substance.
Continue reading “Identify one mole of a substance.”…

A sample of pure lithium carbonate contains 44.3% lithium by…

Posted on: May 26, 2025 Last updated on: May 27, 2025 Written by: Anonymous
A sample of pure lithium carbonate contains 44.3% lithium by mass. What is the % lithium by mass in a sample of pure lithium carbonate that has twice the mass of the first sample?
Continue reading “A sample of pure lithium carbonate contains 44.3% lithium by…”…
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