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katen-ka-za [31]
3 years ago
13

I'm very confused please help​

Chemistry
1 answer:
Setler79 [48]3 years ago
5 0

Answer:

the food chain you mean

Explanation:

pollution than mosquitoes then alligators

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If you know the mass of Earth, what other single value would you need to know to calculate Earth's average density?
Dennis_Churaev [7]

Answer:

Volume

Explanation:

Density:

Density is equal to the mass of substance divided by its volume.  In order to find the density of earth when mass is given we have to calculate its volume. The volume of earth is calculated by using the volume formula for sphere. i.e 4/3 π r³. we also require radius to find the volume and we know that

Diameter = 2 × radius

The diameter of earth equator is 12756.75 Km. So we calculate the radius by dividing the diameter by 2. Then by putting the value of radius in 4/3 π r³ we will get the volume and then we can calculate the density of earth.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

7 0
3 years ago
Are photosynthesis and cellular respiration part of the land-based carbon cycle of water-based carbon cycle
Dmitrij [34]
It would be the water based carbon cycle
3 0
3 years ago
Original Source Material
Alla [95]

Answer:

This is not plagiarism      

Explanation:

Plagiarism maybe defined as the practice or process of copying or imitating another person's concept or idea or writing and pretending that these are their own work.  It involves violating the copyright laws.

In the given context, the given student version of paragraph is not plagiarism as words are different from the original writing. And the bibliography reference as well as the citation are correct.

Hence the student version of writing is not a plagiarism.

5 0
3 years ago
Which of the following can form a hydrogen bond with the HF molecule?
Lostsunrise [7]

Answer:

helium

(He)

Explanation:

helium

(He)

6 0
3 years ago
The general formula for
shutvik [7]
The second one, b synthesis reaction
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