How does weathering change rocks and minerals

1 answer:

3 0

It changes rocks and minerals by water, ice, acids, salt, and changes in the temperature. Once the rock has been broken down a process named erosion happens, it transports bits of rocks and minerals away

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What is the composition of carbohydrates

s344n2d4d5 [400]

Answer - A carbohydrate is a naturally occurring compound, or a derivative of such a compound, with the general chemical formula Cx(H2O)y, made up of molecules of carbon (C), hydrogen (H), and oxygen (O). Carbohydrates are the most widespread organic substances and play a vital role in all life. hopes this helps

8 0

3 years ago

Calculate the number of hydrogen atoms in a sample of hydrazine . Be sure your answer has a unit symbol if necessary, and round

gladu [14]

Answer:

$atoms \ H= 9.767x10^{24}atoms$

Explanation:

Hello!

In this case, considering that the mass of hydrazine is missing, we can assume it is 130.0 g (a problem found on ethernet). In such a way, since we need a mass-mole-atoms relationship by which we can compute moles of hydrazine given its molar mass (32.06 g/mol), then the moles of hydrogen considering one mole of hydrazine has four moles of hydrogen and one mole of hydrogen has 6.022x10²³ atoms (Avogadro's number); therefore, we proceed as shown below:

$atoms \ H=130.0gN_2H_4*\frac{1molN_2H_4}{32.06gN_2H_4} *\frac{4molH}{1molN_2H_4} *\frac{6.022x10^{23}atoms}{1molH}\\\\atoms \ H= 9.767x10^{24}atoms$

Notice 130.0 g has four significant figures, therefore the result is displayed with four as well.

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7 0

3 years ago

Compare and contrast the behavior of the food coloring and the floating pieces of paper before and after adding heat to the syst

Leviafan [203]

Answer:

the answer is c

Explanation:

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3 years ago

How many molecules do you have in 64 g of CO2?

Nadusha1986 [10]

Answer:

8.757 x 10^23 molecules

Explanation:

Use Avogadro's number of 6.022 × 10 ^23 molecules per mole.

64g CO2/44.01 g/mol = 1.454 moles of CO2

1.454 x 6.022 × 10 ^23 =

8.757 x 10^23 molecules

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3 years ago

What is the frequency of an electromagnetic wave that has a wavelength of

igor_vitrenko [27]

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2 years ago