2 years ago

The part of an atom where nearly whole mass is concentrated is called

1 answer:

3 0

Answer:

.....is called nucleus which have a positive charge the positive charge in the nucleus is balanced by the negative electrons making an atom neutral

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When all colors are absorbed, you see: black white green yellow

wolverine [178]

uhmm, white.

Explanation:

you'll basically look like blind ig

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3 years ago

Which of these is a reason why nuclear power is important?

OlgaM077 [116]

Answer:

C Fossil fuels will run out soon

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2 years ago

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What is the enthalpy of combustion when 1 mol C6H6(g) completely reacts with oxygen? 2C6H6(g) 15O2(g) mc001-1. Jpg 12CO2(g) 6H2O

Andrei [34K]

The enthalpy of combustion of 1 mole of benzene is 3169 kJ/mol .

The first step in answering this question is to obtain the balanced thermochemical equation of the reaction. The thermochemical equation shows the amount of heat lost or gained.

The thermochemical equation for the combustion of benzene is;

2 C6H6(l) + 15 O2(g) → 12 CO2(g) + 6 H2O(g) ΔrH° = -3169 kJ/mol

We can see that 1 mole of benzene releases about 3169 kJ/mol of heat.

Learn more: brainly.com/question/13164491

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2 years ago

At a certain temperature the vapor pressure of pure heptane C7H16 is measured to be 454.mmHg. Suppose a solution is prepared by

OlgaM077 [116]

Answer:

Mass of heptane = 102g

Vapor pressure of heptane = 454mmHg

Molar mass of heptane = 100.21

No of mole of heptane = mass/molar mass = 102/100.21

No of mole of heptane = 1.0179

Therefore the partial pressure of heptane = no of mole heptane *Vapor pressure of heptane

Partial pressure of heptane = 1.0179*454mmHg

Partial pressure of heptane = 462.1096 = 462mmHg

the partial pressure of heptane vapor above this solution = 462mmHg

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3 years ago

Can you guys help me with this one part?

Pani-rosa [81]

Answer: Do want the experiment done or help of the experiment

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2 years ago

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