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dimulka [17.4K]
3 years ago
13

A wooden block has a mass of 562 g and a volume of 72 cm3. What is the density rounded to the nearest tenth!

Chemistry
2 answers:
Doss [256]3 years ago
8 0

Answer:

<h3>The answer is 7.81 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question we have

density =  \frac{562}{72}  \\  = 7.80555555...

We have the final answer as

<h3>7.81 g/cm³</h3>

Hope this helps you

Mila [183]3 years ago
5 0

Answer:

r

Explanation:

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It became thicker and its viscosity decreased and cannot flow as easily as before.

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Chemical links between polymer chains provide a substance with a more solid structure and perhaps a better-defined shape. It thickened and lost viscosity, making it more difficult to flow than it once could.

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3 0
1 year ago
Which of the following liquids would have the highest viscosity at room temperature?
Liono4ka [1.6K]

Answer:

5)HOCH2CH2OH

Explanation:

This is also known as ethylene glycol. An increase in hydrogen bonds of a compound means an increase in the viscosity. Hydrogen bonds occur as a result of bonding with electronegative elements such as Oxygen, Nitrogen etc.

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3 0
3 years ago
Which statements about fresh-water sources are true.? (Multiple Choice) (please help asap thanks!:)
Kay [80]

Answer:

The correct answers are:
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Explanation:

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The largest source of usable fresh water on Earth is groundwater. It's more difficult to access but it's there and much more usable than water say frozen in ice on the sea.

The most correct option left would be 75% of Earth's freshwater being in ice sheets even though it's about 70%.

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