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The number of moles in 4.5x10^23 atoms of oxygen is

Yuri Tsoglin asked Dec 23, 2024

by Yuri Tsoglin

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calculate the amount of heat needed to boil 133. g of ethanol, beginning from a temperature of -60.8 degrees.

Claudio Albertin asked Dec 23, 2024

by Claudio Albertin

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A sample of hydrogen gas is collected over water at 140 C. The pressure of the resultant mixture 113.0 kPa. What is the pressure that is exerted by the dry hydrogen alone? The vapor pressure of water at

FishySwede asked Dec 23, 2024

by FishySwede

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B) The beach in Antibes, France, is composed of small, smooth rocks that have been worn down by being tumbled against each other by the energy of the sea water Physical or chemical? Specific type of physical

Pmckeown asked Dec 23, 2024

by Pmckeown

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108k views

What are the advantages and disadvantages of the lead acid battery used in cars and trucks? Why is it extremely important to use caution when recharging lead acid car battery?

Andrey Solera asked Dec 23, 2024

by Andrey Solera

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5 votes

96.6k views

If Delta G initial = -125 kJ, calculate the value of the equilibrium constant at room temperature (298K).

Amree asked Dec 23, 2024

by Amree

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2 votes

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What is the concentration of vinegar prepared in the buret? 1) 0.5 M 2) 1 M 3) 2 M 4) Cannot be determined

Peter Ericson asked Dec 23, 2024

by Peter Ericson

8.4k points

1 answer

4 votes

8.1k views

What are three properties of covalent bonds and three properties of Ionic bonds?

EliuX asked Dec 23, 2024

by EliuX

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1 answer

4 votes

51.3k views

Three 8−L flasks, fixed with pressure gauges and small valves, each contain 4 g of gas at 284 K. Flask A contains CH4, flask B contains He, and flask C contains H2. Rank the flask contents in terms of:

Seeya K asked Dec 23, 2024

by Seeya K

8.3k points

1 answer

5 votes

197k views

What are elements? What are some examples of elements? (Lesson 1.15)

Becs Carter asked Dec 23, 2024

by Becs Carter

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5 votes

103k views

What is -N(nitrogen) H3(hydrogen) chemical reaction -H2(hydrogen) C(carbon) O3(oxygen) chemical reaction -H(hydrogen) N(nitrogen) O2(oxygen) chemical reaction -Na(sodium) O(oxygen) H(hydrogen) chemical

Uncle Dino asked Dec 23, 2024

by Uncle Dino

7.9k points

1 answer

3 votes

55.5k views

Calculate the molarity of 0.75 L of a solution containing 0.93 g of dissolved KCl. Use the calculations of 0.93 g of KCl / molar mass of KCl (from Periodic Table) = moles of KCl. Moles of KCl/0.75 L =

Amitdatta asked Dec 23, 2024

by Amitdatta

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4 votes

211k views

The rearrangement of methyl isonitrile 1(CH₃NC)₂ to acetonitrile 1CH₃CN₂ is a first-order reaction and has a rate constant of 5.11 ✕ 10⁻5 s⁻1 at 472 K. If the initial concentration of CH₃NC is 0.0340 M:

Supun Abesekara asked Dec 23, 2024

by Supun Abesekara

9.5k points

1 answer

0 votes

89.9k views

Which element is used as standard when comparing masses of atoms? 1) Hydrogen 2) Carbon 3) Oxygen 4) Nitrogen

John Strong asked Dec 23, 2024

by John Strong

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1 answer

5 votes

187k views

PLEASE HELP Consider the combustion for octane (C8H18), which is a primary component of gasoline. 2 C8H18 + 25 O2 -> 16 CO2 + 18 H2O HOW MANY MOLES OF CO2 are emitted into the atmosphere when 26.6 g C8H18

Tihamer asked Dec 23, 2024

by Tihamer

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2 votes

18.9k views

If I have 3.7 moles of MgSO4 and 4.8 moles of NH3 which one is the limiting reactant?

Dastagir asked Dec 23, 2024

by Dastagir

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1 answer

4 votes

117k views

The scientific Methos is a ____________________ compared to the engineerinf design process whic is an _______________.

Deepak Rao asked Dec 23, 2024

by Deepak Rao

7.8k points

1 answer

1 vote

147k views

What is the solution to the following equation? x^2 + 3x + 7 = 0 A) x = -3 + 7 B) x = -3 - 19 C) x = 33 + 25 D) x = -3 + 427

Adam McArthur asked Dec 23, 2024

by Adam McArthur

8.7k points

1 answer

5 votes

102k views

What is the balanced chemical equation for the reaction b2h6(g) + 6 cl2(g) → 2 bcl3(g) + 6 hcl(g)?

Garret Wilson asked Dec 23, 2024

by Garret Wilson

8.2k points

1 answer

1 vote

180k views

Write the rate law for these two elementary reaction equations. (a) 2A(g) + B(g) right arrow c(g) + D(g) rate = k (b) x(R) + y(g) right arrow z(g) rate = k

Jwi asked Dec 23, 2024

by Jwi

8.4k points

1 answer

1 vote

131k views

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