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Mademuasel [1]
3 years ago
11

Whats a substance mixture?

Chemistry
2 answers:
zaharov [31]3 years ago
6 0
In chemistry, a mixture is a material made up of two or more different substances which are mixed. A mixture refers to the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.
Alisiya [41]3 years ago
4 0
It is when two or more different substances which are mixed
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Which of the following structures provides support and movement ?
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The answer is C.

Explanation:

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How many molecules of water are there in 1 gram of water​
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6.022*1023

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HURRY PLEASE! True or false: Making an observation is the first step of the scientific method.
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True

Explanation:

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4 years ago
How many moles of co2 are there in a 50.0 dm3 sample of the gas at a pressure of 100.0 kpa and a temperature of 50°c?
Rudiy27

Answer:

  • 609 mol

Explanation:

<u>1) Data:</u>

a) n = ?

b) V = 50.0 dm³ = 50.0 liter

c) p = 100.0 kPa

d) T = 50 °C

<u>2) Physical law:</u>

  • Ideal gas law: pV = nRT,

<u>3) Constants:</u>

  • R = 0.08206 atm-liter / K-mol

<u>4) Unit conversions:</u>

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  • P = 100.0 kPa × (1 amt  /101,325 kPa) = 0.9869 atm

<u>5) Solution:</u>

  • pV = nRT ⇒ n = pV / (RT)

  • n = 0.9869 atm × 50.0 liter / (0.08206 atm-liter /K-mol × 323.15 K)

  • n = 609 mol ← answer
7 0
3 years ago
Based on the molar masses, how can you tell that an equation is balanced?
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When you work with molar mass, you solve for the quantity of ''Moles'' within the substance by converting Mass. The way you can tell the equation is balanced would be by knowing whether the moles were equivalent on both sides or not. Therefore, if they are equal, it is balanced considering you have the same amount of moles on each side of the equation.
7 0
4 years ago
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