3 years ago

What animals use the earths magnetic field for navigation

Chemistry

1 answer:

Ivenika [448]3 years ago

6 0

Birds use the magnetic fields and some fish i believe as well and maybe butterflies im not entirely sure <span />

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Calculate the number of moles and molecules of acetic acid in 22gm of it

aivan3 [116]

Answer:

0.366 moles to the nearest thousandth.

Explanation:

The molar mass of acetic acid CH3COOH = 2*12 + 4(1.008) + 2*16

= 60.03 g so the number of moles in 22 g

= 0.366.

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4 years ago

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Alla [95]

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Acetone is the main chemical in nail polish and has a density of 0.7857 g/mL. What is the volume of 6.54g of acetone ?

trapecia [35]

8.3mL

Explanation:

Given parameters:

Mass of acetone = 6.54g

Density of acetone = 0.7857 g/mL

Unknown:

Volume of acetone = ?

Solution:

Density is defined as the mass per unit volume of a substance. It is expressed mathematically as shown below:

Density = $\frac{Mass}{Volume}$

Since the unknown is volume, we make it the subject of the formula

Volume = $\frac{mass}{density}$

Input the values;

Volume = $\frac{6.54}{0.7857}$ = 8.3mL

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Answer: ph scale

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Atom A has 32 protons and 35 neutrons. atom B has 32 protons and 33 neutrons. are they isotopes?

Anna007 [38]

Yes because the protons are the same but the neutrons change

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