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Your teacher Aaditri sharma has invited you to Classroom: Whip - smart Subject: All subjects of class 4,5,6,7 To join the classr

oom, download WISE App: https://links.wiseapp.live/8t8X Login as a student, and enter classroom ID: 349483373

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LUCKY_DIMON [66]3 years ago

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Answer:

well what about the password!!

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cyclohexanol is burned as a fuel, according to the following equation, how many moles of oxygen are needed to produce 13.7 mol o

lidiya [134]

The moles of oxygen that are needed to produce 13.7 moles of carbon dioxide is 21.17 moles of Oxygen

<u><em>calculation</em></u>

2 C₆H₁₂O + 17 O₂ → 12 CO₂ +12 H₂O

The moles of O₂ is determined using the mole ratio

that is for given equation above O₂ : Co₂ is 17 :12

therefore the moles of O ₂= 13.7 moles x 17/12 =21.17 moles

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3 years ago

If I had 3.50 x 10 24molecules of Cl2 gas, how many grams is this?

Zinaida [17]

Answer:

412 g Cl₂

General Formulas and Concepts:

<u>Atomic Structure</u>

Reading a Periodic Table
Moles
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

Using Dimensional Analysis

Explanation:

<u>Step 1: Define</u>

[Given] 3.50 × 10²⁴ molecules Cl₂

[Solve] grams Cl₂

<u>Step 2: Identify Conversions</u>

Avogadro's Number

[PT] Molar Mass of Cl - 35.45 g/mol

Molar Mass of Cl₂ - 2(35.45) = 70.9 g/mol

<u>Step 3: Convert</u>

[DA] Set up: $\displaystyle 3.50 \cdot 10^{24} \ molecules \ Cl_2(\frac{1 \ mol \ Cl_2}{6.022 \cdot 10^{23} \ molecules \ Cl_2})(\frac{70.9 \ g \ Cl_2}{1 \ mol \ Cl_2})$
[DA] Divide/Multiply [Cancel out units]: $\displaystyle 412.072 \ g \ Cl_2$

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

412.072 g Cl₂ ≈ 412 g Cl₂

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3 years ago

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AveGali [126]

Explanation:

Adhesion means the ability to stick on the surface of another substance.

Water exhibits adhesive forces due to which it is able to stick to the glass. Due to adhesive forces water spreads over the surface of glass and sticks to it.

These adhesive forces between the glass and water enough that it deforms the spherical shape of water molecules and help them stick to the surface of glass. As a result, adhesive forces overcome the repulsion between like molecules.

Hence, water is able to “stick” to the side of glass due to strong adhesive forces.

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Static Friction, Sliding Friction, Rolling Friction, and finally Fluid Friction.

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The unit of heat is Joule

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