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Scilla [17]
3 years ago
10

Your dad is working on creating a brick border for the lake in your backyard. Each brick has a mass of 100 g and a volume of 20

cm3. What is the density of the brick? Explain the steps you took to solve this problem, showing your work. Then, explain if the brick will float or not if it falls in the lake. Why or why not
Chemistry
1 answer:
Trava [24]3 years ago
7 0
Density = mass / volume
100g / 20cm3
100 / 20 = 5 g/cm3
V‾‾√3=2.71442cm
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Answer:

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2 years ago
an element has a metallic gray appearance. it also has the properties of both a metal and a nonmetal. in which section of the pe
irinina [24]
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3 years ago
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Lynna [10]

0.5

Explanation:

Given parameters:

Mass of Ca²⁺ = 10g

unknown:

Equivalent weight = ?

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It lost 2e⁻;

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1 mol  Ca²⁺ = 2eq. wts. 

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learn more:

Molar mass brainly.com/question/2861244

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BlackZzzverrR [31]
<h3><u>Answer;</u></h3>

Polar: IF, PCl3, IF5  

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<h3><u>Explanation:</u></h3>
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  • A molecule is classified as a polar molecule when the arrangement of the atoms is such that one end of the molecule has a positive electrical charge and the other end has a negative charge.
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  • Therefore, a non-polar molecule does not have a profusion of charges at the opposite ends. The majority of hydrocarbon liquids are non-polar molecules.
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