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3 years ago

You have a 5-liter container with 1.30×10^24 molecules of ammonia gas (NH3) at STP.

Chemistry

2 answers:

Luden [163]3 years ago

7 0

<u>Answer:</u> The number of molecules of argon gas are $1.30\times 10^{24}$

<u>Explanation:</u>

We are given:

Volume of container = 5 L

Number of molecules of ammonia gas = $1.30\times 10^{24}$

STP conditions:

The temperature and pressure conditions are 273 K and 1 atm

Also, 1 mole of a gas occupies 22.4 L of gas

As, the conditions of same for argon gas. So, the number of molecules of argon gas will be equal to the number of molecules of ammonia gas.

Hence, the number of molecules of argon gas are $1.30\times 10^{24}$

givi [52]3 years ago

3 0

Answer:answer is C

Explanation:

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Oksi-84 [34.3K]

Answer:

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2 years ago

Can someone pls help me!!

Black_prince [1.1K]

Answer:

the answer is b

Explanation:

so the arrows signify the movement/ flow of energy from one organism to the next. so as one animal consumes another the energy from the the consumed animal flows through the consumer. its like eating a protein bar and the energy the protein bar gives you is what you have gotten from consuming the bar.

ps. i hope this helps

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3 years ago

The law of the conservation of mass must be obeyed in a chemical reaction. what do the atoms do during a reaction that shows the

Rainbow [258]

A balanced equation is a prime example of the law of the conservation of mass as the number of atoms in the reactants is consistent with the number of atoms in the reactants meaning the amount of matter has not changed and no mass has been created or destroyed hence obeying the law.

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3 years ago

The half-life of radium-226 is 1590 years. if a sample contains 100 mg, how many mg will remain after 1000 years?

Katyanochek1 [597]

Answer:

$a=64.7mg$

Explanation:

Hello,

In this case, we need to remember that for the required time for a radioactive nuclide as radium-226 to decrease to one half its initial amount we are talking about its half-life. Furthermore, the amount of remaining radioactive material as a function of the half-lives is computed as follows:

$a=a_0(\frac{1}{2} )^{\frac{t}{t_{1/2}} }$

Therefore, for an initial amount of 100 mg with a half-life of 1590 years, after 1000 years, we have:

$a=100mg(\frac{1}{2} )^{\frac{1000years}{1590years} }\\\\a=64.7mg$

Best regards.

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3 years ago

Name 2 animals that’s are omnivores give an example of a plant and an animal that each one might eat

denis-greek [22]

OMG THERE'S SPIDER BEHIND YOU!!! jk XD lets get back to the question.....

example of omnivores would be us humans but since you said ANIMALS then :

BEARS - bears are omnivores they feed on meat like fish and plants like grass or dandelion.

RACCOONS - their omnivores too they feed on meat like rats (ew), fish, frogs..etc they also eat plants like any kind fruit, grains, nuts ( i dont think all kind tho).

so yup those are two examples :D

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3 years ago

Read 2 more answers