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liq [111]
2 years ago
13

Name the form of carbon used for absorbing poisonous gases and purification of noble gases​

Chemistry
1 answer:
Mars2501 [29]2 years ago
7 0
Activated carbon, also called activated charcoal, is a form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions.
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Which stimulus is an example of an internal stimulus?
lawyer [7]

An example of an external stimulus is a decrease in oxygen levels in the blood during exercise.

Option C

<h3>What is stimulus?</h3>

A stimulus is defined as a thing or sensation that causes a specific reaction in an organ or tissue of a living organism

There are two types of stimuli:

  • Internal stimulus
  • External stimulus

Learn more about stimulus:

brainly.com/question/20117556

3 0
2 years ago
A quantity of 0.225 g of a metal M (molar mass = 27.0 g/mol) liberated 0.303 L of molecular hydrogen (measured at 17°C and 741 m
Lana71 [14]

Answer:

Oxide of M is M_2O_3 and sulfate of M_2(SO_4)_3

Explanation:

0.303 L of molecular hydrogen gas measured at 17°C and 741 mmHg.

Let moles of hydrogen gas be n.

Temperature of the gas ,T= 17°C =290 K

Pressure of the gas ,P= 741 mmHg= 0.9633 atm

Volume occupied by gas , V = 0.303 L

Using an ideal gas equation:

PV=nRT

n=\frac{PV}{RT}=\frac{0.9633 atm\times 0.303 L}{0.0821 atm L/mol K\times 290 K}=0.01225 mol

Moles of hydrogen gas produced = 0.01225 mol

2M+2xHCl\rightarrow 2MCl_x+xH_2

Moles of metal =\frac{0.225 g}{27.0 g/mol}=8.3333 mol

So, 8.3333 mol of metal M gives 0.01225 mol of hydrogen gas.

\frac{8.3333}{0.01225 mol}=\frac{2}{x}

x = 2.9 ≈ 3

2M+6HCl\rightarrow 2MCl_3+3H_2

MCl_3\rightarrow M^{3+}+Cl^-

Formulas for the oxide and sulfate of M will be:

Oxide of M is M_2O_3 and sulfate of M_2(SO_4)_3.

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6 0
2 years ago
Describe how elements are laid out on the periodic table of elements.
defon

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The chemical elements are arranged in order of increasing atomic number.

Explanation:

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8 0
3 years ago
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What is the volume of kristas rock
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Answer:

for what I can see in the picture the volume is 155

Explanation:

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