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3 years ago

True or false: The force exerted onto an object must be perpendicular to the displacement if work is to be considered done.

Chemistry

1 answer:

RUDIKE [14]3 years ago

4 0

Answer:

its letter B. false

Explanation:

bjchakfbhc

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Which statement describes the bonds in iron sulfate, FeSO4?

Harlamova29_29 [7]

Answer: Would be D. Fe and S have an ionic bond, while S and O have covalent.

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7 0

2 years ago

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If a solid has a density of 4.0 g/cm^3, what volume of the solid has a mass<br> of 24 g? Show work.

Mrrafil [7]

Answer:

<h2>Volume = 6 cm³</h2>

Explanation:

Density of a substance is given by

$Density = \frac{mass}{volume}$

From the question

Density = 4.0 g/cm³

mass = 24g

Substitute the values into the above formula and solve for the volume

That's

$4 = \frac{24}{v} \\4v = 24$

Divide both sides by 4

v = 6

We have the final answer as

<h3>Volume = 6 cm³</h3>

Hope this helps you

8 0

3 years ago

Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 4.00 moles of aluminum sulfate, al2(so4)3. express the nu

bagirrra123 [75]

<span>To calculate the number of moles of aluminum, sulfur, and oxygen atoms in 4.00 moles of aluminum sulfate, al2(so4)3. We will simply inspect the "number" of aluminum, sulfur, and oxygen atoms available per one mole of the compound. Here we have Al2(SO4)3, which means that for every mole of aluminum sulfate, there are 2 moles of aluminum, 3 (1 times 3) moles of sulfur, and 12 (4x3) moles of oxygen. Since we have four moles of Al2(SO4)3 given, we simply multiply 4 times the moles present per 1 mole of the compound. So we have 4x2 = 8 moles of Al, 4x3 = 12 moles of sulfur, and 4x12 = 48 moles of oxygen.

So the answer is:
8,12,48

</span>

3 0

3 years ago

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Help!

maks197457 [2]

Answer:

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Explanation:

sandmeyer's reaction
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ROH + Zncl2 +HCl ---> RCl + H2O

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R-OH +R’-COOH +H+↔ R’-COOR

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2 years ago

Nayla grew skin in a lab by adding cells to a synthetic material. The skin functioned normally for 12 days. Then Nayla separated

iris [78.8K]

Answer:B) The Skin and The Skin cells

Explanation:

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3 years ago