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bija089 [108]
3 years ago
14

Calculate the density of a sample of metal that has a mass of 1668 g and takes up a volume of 186.2 cm

Chemistry
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer:

8,95

Explanation:

Density is equal to mass/volume

D=\frac{m}{v} \\D= \frac{1668g}{186.2} \\D = \frac{8,95g}{cm^3} \\

approximately

Curiosity:

Did you knew that is because of his low density that ships can fluctuate?

Despite their big mass, their volume are far greatter, so the Buoyancy Force acts heavily on them.

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The half-life of carbon-14 is 5,730 years. How many grams of parent material will remain from a 200-gram sample after 3 half-liv
Alex17521 [72]

Answer:

The answer to your question is 25 grams

Explanation:

Data

half-life = 5730 years

sample = 200 g

after 3 half-lives

Process

Calculate the amount of sample after one, two and three half-lives.

After each half-life, that of sample is half the previous amount.

                         Number of half-lives           Amount of sample

                                       0                                        200 g

                                        1                                         100 g

                                        2                                          50 g

                                       3                                           25 g

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3 years ago
What prefixes is best for measuring large quantities like the mass of a person?
Alecsey [184]
The answer is Deca foo.
7 0
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A chemical reaction in which bonds are created is usually associated with ________.
Nikolay [14]

A  reaction in which bonds are created is usually associated with the Release of energy.

What are the various types of bonds?

There are three sorts of bonds:

1. Electrovalent or  electrovalent bond

2.  chemical bond

3.  dative bond

Electrovalent or electrovalent bond are formed when one or more electrons are transferred from one atom to another.

Covalent bonds are formed when the atoms during a  molecule share an equal number of electrons.

A dative bond is one in which both electrons in a shared pair come from the same atom.

Now, atoms tend to stabilize once they form chemical bonds, releasing energy within the process. Energy is released because there's a higher level of stability associated with a low energy level.

Hence, a  reaction in which bonds are created is usually associated with the release of energy.

To know more about chemical bonds go to the given link:

brainly.com/question/20584851

#SPJ4

4 0
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Which of the following is part of photosynthesis, but not part of cellular respiration?
Licemer1 [7]

Answer:

A

Explanation:

  • plants need sunlight to eat. so that's why

8 0
3 years ago
Can Someone please do this for me please please
Gnoma [55]
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