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3 years ago

Sedimentary rocks form

Chemistry

1 answer:

grin007 [14]3 years ago

5 0

Hello there!

Sedimentary rocks are formed due to layers so the answer is A.

Best wishes
-HuronGirl

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Which of the following definitions describes a chemical hazard?

Monica [59]

I think it would be A because hazardous waste would most likely be found in dust, fumes etc. I'm not sure though.

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At what temperature (°C) will a 10.00 g sample of neon gas exert a pressure of 96.7 kPa in a

Eva8 [605]

Answer : The temperature of neon gas will be, 221.0 K

Explanation :

To calculate the temperature of neon gas we are using ideal gas equation.

$PV=nRT\\\\PV=\frac{w}{M}RT$

where,

P = pressure of neon gas = 96.7 kPa = 0.955 atm

Conversion used : (1 atm = 101.3 kPa)

V = volume of neon gas = 9.50 L

T = temperature of neon gas = ?

R = gas constant = 0.0821 L.atm/mole.K

w = mass of neon gas = 10.00 g

M = molar mass of neon gas = 20 g/mole

Now put all the given values in the ideal gas equation, we get:

$(0.955atm)\times (9.50L)=\frac{10.00g}{20g/mole}\times (0.0821L.atm/mole.K)\times T$

$T=221.0K$

Therefore, the temperature of neon gas will be, 221.0 K

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3 years ago

What are examples of fossil fuels?

earnstyle [38]

Fossil fuels are <span>a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms</span>

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3 years ago

Please help with 1 chemistry question thank you!

ale4655 [162]

Here are the CORRECT names and molecular formulas

carbonate: $CO_3^{2-}$
bicarbonate: $HCO_3^{-}$

Choice 1 is incorrect

nitrite: $NO_2^{-}$
nitrate: $NO_3^{-}$

Choice 2 is incorrect

sulfite: $SO_3^{2-}$
sulfide: $S^{2-}$

Choice 3 is incorrect

By process of elimination, you can infer choice 4 is correct.

Actually, choice 4 is the only choice that displays the correct name and formula.

Have an awesome day! :)

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3 years ago

please help asap i will mark you as brainly and give u 10 points ( don’t mind the answer i accidentally clicked )

Ne4ueva [31]

Answer:

Negative 5

Explanation:

I am not 100% sure btw

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