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3 years ago

What is an element?

Chemistry

1 answer:

const2013 [10]3 years ago

6 0

Answer:

B) a substance made of just one kind of atom that cannot be broken down into something simpler

Explanation:

Elements are what you find on the periodic table of elements.

Take oxygen, for example. You can have one or multiple atoms, but if they are all oxygen atoms it's an element.

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Recording a person’s fingerprints using ink or digital imaging is called a(n)____.

NNADVOKAT [17]

It is called a dactyloscopy

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3 years ago

Predict what might happen if the human body did not have specialized cells, tissues, organs, and organ systems to maintain homeo

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3 years ago

Read 2 more answers

a sample of hydrogen gas (h2) is mixed with water vapor (h2o (g)). the make sure has a total pressure of 811 torr, and the water

Alborosie

Answer:

$n=0.430molH_2$

Explanation:

Hello!

In this case, considering the partial Dalton's law of partial pressures, we can notice that the total pressure equals the pressure of steam and the pressure of hydrogen, which can be determined as shown below:

$p_T=p_H+p_w\\\\p_H=811torr-12torr=799torr*\frac{1atm}{760torr}\\\\p_H=1.05atm$

Thus, by using the ideal gas law, we can compute the moles of hydrogen as shown below:

$PV=nRT\\\\n= \frac{PV}{RT}=\frac{1.05atm*10.0L}{0.082\frac{atm*L}{mol*K}*298K}\\\\n=0.430molH_2$

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3 years ago

Which if the following numbers in your personal life are exact numbers?

mr_godi [17]

Answer:

I think D

Explanation:

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2 years ago

Are based on the intrinsic properties of the chemical

Leto [7]

Answer:

In materials science, an intrinsic property is independent of how much of a material is present and is independent of the form of the material, e.g., one large piece or a collection of small particles. Intrinsic properties are dependent mainly on the fundamental chemical composition and structure of the material.

Explanation:

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2 years ago