pmanashi

Lv8

Oakland University

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Prealgebra1Algebra4Geometry12Biology1Mathematics1Chemistry156

From the reaction

C10H8(s) + 12O2(g) → 10CO2(g) + 4H2O(l) ΔrH°= -5153.0 kJ mol−1

and the enthalpies of formation of CO2 (-393.5 kJ/mol) and H2O (-285.8 kJ/mol), calculate the enthalpy of formation of naphthalene (C10H8).

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pmanashiLv8

7 Sep 2023

Answer: 74.8 kJ/molStep-by-step explanation: Heat of reaction = heat of combus...

Express in simplest radical form

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pmanashiLv8

5 Sep 2023

Answer: x√11 Step-by-step explanation: √11x^2 =√11(x*x) = x√11

Fine the measure of HJ

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pmanashiLv8

5 Sep 2023

Answer: 9.1Step-by-step explanation: From the picture, HJ + JK = HK Therefore,...

Can somebody help me please

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5 Sep 2023

Answer: BD = 6 in, CD = 12 in, m<ABD = 90˚ Step-by-step explanation: AB is ...

whats the answer

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pmanashiLv8

5 Sep 2023

Answer: 2122.64 inch^2 or, 2122.64 square inchStep-by-step explanation: The cl...

I finished the question just check if I am right

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pmanashiLv8

5 Sep 2023

Answer: 32˚Step-by-step explanation:The sum of the angles of a triangle is 180...

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pmanashiLv8

5 Sep 2023

Answer: 29Step-by-step explanation:As it is a equlateral triangles all sides a...

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pmanashiLv8

5 Sep 2023

Answer: Fourth option: 44˚, 44˚, 92˚ Step-by-step explanation: Solve for n usn...

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5 Sep 2023

Answer: XY is the shortest, YZ is second shortest side and XZ is the longest s...

Find the angle of < ROQ.(Diagram shown above)

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pmanashiLv8

5 Sep 2023

Answer: 25˚ Step-by-step explanation: From the figure, m<MOR + m<ROQ = m...

Number of side decagon

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pmanashiLv8

5 Sep 2023

Answer: 10Step-by-step explanation:The word deca came from the Greek word deka...

Can someone help me plz

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5 Sep 2023

Answer: 360˚ Step-by-step explanation: A qudrilateral has 4 sides and 4 vertic...

Can anyone answer this answer please

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pmanashiLv8

4 Sep 2023

Answer: x = 17. y = 42Step-by-step explanation: The quadrilateral is incribed ...

Solve the equation 3x + 7 = 22.

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pmanashiLv8

4 Sep 2023

Answer: x = 5Step-by-step explanation:3x + 7 = 22 Subtract both sides by 7 to ...

Solve for d.

d + 2 = 98

d = ?

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pmanashiLv8

4 Sep 2023

Answer: d= 96Step-by-step explanation:d + 2 =98 subtract 2 from both sides d +...

__________ is known as heavy water and used in nuclear reactor as moderator.

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pmanashiLv8

4 Sep 2023

Answer: D2OStep-by-step explanation:Deuterium oxide is known as heavy water. T...

Deuterium is ______ of Hydrogen.

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pmanashiLv8

4 Sep 2023

Answer: isotope Step-by-step explanation:Deuterium is an isotope of hydrogen. ...

Nail polish remover contains?

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pmanashiLv8

4 Sep 2023

Answer: AcetoneStep-by-step explanation:Acetone is a organinc liquid at room t...

Nail polish remover contains _____

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pmanashiLv8

4 Sep 2023

Answer: acetoneStep-by-step explanation: Acetone is used for nail polish remov...

The acid present in lemon is?

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pmanashiLv8

4 Sep 2023

Answer: citric acidStep-by-step explanation:Citric acid is present in lemon. T...

Which acid is present in Orange?

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pmanashiLv8

4 Sep 2023

Answer: citric acidStep-by-step explanation:In oranges citric is present. The ...

Which gas is used in cigarette lighters?

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pmanashiLv8

4 Sep 2023

Answer: butaneStep-by-step explanation:Butane a hydrocarbon is used in lighter...

what is the mole fraction of neon in a mixture of 0.709 mol neon, 0.180 mol argon, and .0.963 mol xenon?

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pmanashiLv8

4 Sep 2023

Answer: 0.383Step-by-step explanation: Moles of Ne = 0.709 mol (3 significant ...

Which one of the following is also called StrangerGas?
	A. Neon B. Argon C. Xenon D. Nitrous oxide

Which one of the following is also called StrangerGas?

A. Neon

B. Argon

C. Xenon

D. Nitrous oxide

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pmanashiLv8

4 Sep 2023

Answer: C. XenonStep-by-step explanation:The meaning of the noble gas, Xenon( ...

Chemical used as fixer in Photography is ______ .

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pmanashiLv8

4 Sep 2023

Answer: sodium thiosulfateStep-by-step explanation:The solution of sodium thio...

_____ is also known as ‘Stranger Gas.’

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pmanashiLv8

4 Sep 2023

Answer: Xenon (Xe)Step-by-step explanation:Xenon is a noble gas. It os known a...

Kerosene is a mixture of _____ .

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pmanashiLv8

4 Sep 2023

Answer: hydrocarbonsStep-by-step explanation:Kerosene is a mixture of hydrocar...

The metal constituent of chlorophyll is _____ .

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pmanashiLv8

4 Sep 2023

Answer: Magnesium, MgStep-by-step explanation: Magnesium is present in the str...

Which acid is used for etching glass?

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pmanashiLv8

4 Sep 2023

Answer: hydrofluoric acid (HF)

Solder is an alloy of _____ .

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pmanashiLv8

4 Sep 2023

Answer: Lead and tinStep-by-step explanation:Solder is an alloy of lead and ti...

Acid rain is caused when the air is polluted by which gases ________

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pmanashiLv8

4 Sep 2023

Answer: CO2, NO2 and SO2Step-by-step explanation: From CO2: CO2 + H2O → H2CO3 ...

What common household item contains a base?

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pmanashiLv8

4 Sep 2023

Answer: d. Drain cleanerStep-by-step explanation:Drain cleaners contains sodiu...

Calculate the molar mass of water (H2O) by adding up the atomic masses of hydrogen (H) and oxygen (O) atoms. Remember to consider the number of atoms in the molecule when calculating the molar mass.

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pmanashiLv8

4 Sep 2023

Answer: Molar mass of H2O = 18.015 g/molStep-by-step explanation: Using the pe...

After balancing the following chemical reaction, how many Fe molecules will we have? Fe+O2-->Fe2O3

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pmanashiLv8

4 Sep 2023

Answer: Number of Fe molecules after balancing = 4Step-by-step explanation: To...

Balance the following chemical equation:

Fe + O2 -> Fe2O3

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pmanashiLv8

4 Sep 2023

Answer: 4 Fe + 3 O2 →2 Fe2O3Step-by-step explanation: The reaction: Fe + O2 → ...

In the presence of a base, the color of litmus is _______ while the color of phenolphthalein is _______

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pmanashiLv8

31 Aug 2023

Answer: a. blue:pinkStep-by-step explanation: In base solution red litmus is t...

Which of the following metals react with dilute

to form hydrogen gas?

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pmanashiLv8

31 Aug 2023

Answer: d. all of the aboveStep-by-step explanation:All the metals gven in the...

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pmanashiLv8

29 Aug 2023

Answer: Reagent: Name of the reagent : sodium hydroxide Formula of the reacgen...

Write the name and chemical formula of the following compound containing Calcium and Fluorine. Write the name and charge of the cation (1 point). Write the name and charge of the anion

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pmanashiLv8

29 Aug 2023

Answer: Cation: calcium: Ca^2+ Charge of cation: +2 Anion: Fluoride: F^- Charg...

What is the name and chemical formula?

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pmanashiLv8

29 Aug 2023

Answer: Pentane C5H12Step-by-step explanation: This is a five carbon cotaining...

pmanashi

Oakland University

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