Describe the way the moon moves in space?

1 answer:

4 0

Gravitational Pull, is the answer. just like we orbit the sun, the moon orbits us. we act almost like a magnet, we follow the biggest guy as leader. if the sun dissapeared, we would die, but probably, we would start to revolve around jupiter as it is the biggest

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Which of the following best describes the electron cloud model? A. It shows that electrons usually carry a negative charge. B. I

Bess [88]

Which of the following best describes the electron cloud model?

THE ELECTRON CLOUD MODEL WAS DEVELOPED BY SCHRODINGER. IT STATES THE THE ELECTRONS ARE NOT PARTICLES MOVING AROUND THE NUCLEUS IN FIXED ORBITY BUT THEIR LOCATIONS CAN ONLY BE STATED BY A PROBABILITY DENSITY IN FORM OF CLOUD AROUND THE NUCLEUS.

THEN THE MAIN POINT OF THE CLOUD MODEL IS THAT THE ELECTRONS ARE NOT IN FIXED ORBITS AROUND THE NUCLEUS BUT THEIR LOCATION IS STATED BY A PROBABILITY FUNCTION THAT IS LIKE A CLOUD REGION.

A. It shows that electrons usually carry a negative charge.

FALSE: ELECTRONS ALWAYS CARRY NEGATIVE CHARGE

B. It shows that electrons remain in high-energy subshells.

FALSE: ELECTRONS OCCUPY THE LOWEST-ENERGY SUBSHELLS AVAILABLE UNLESS THEY ARE EXCITED (ABSORB ENERGY)

C. It shows that electrons move quickly in circular orbits.

FALSE: ELECTRONS DO NOT MOVE IN CIRCULAR ORBITS.

D. It shows that the electrons within an atom do not have sharp boundaries.

TRUE. THE IDEA OF A CLOUD IS A DIFFUSSE REGION WHERE IS A 90% OF PROBABILITIES TO FIND THE ELECTRON, AND THEY DO NOT HAVE SHARP BOUNDARIES.

3 0

2 years ago

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The reaction of iron (III) oxide with carbon monoxide produces iron and carbon dioxide.

True [87]

Answer:

21g

Explanation:

no.ofmol fe2o3=39.5/(56×2+16×3)=0.25mol

from equation 1mole fe2o3 react with 3mole co

so,0.25mol fe2o3 react with 0.75mol co

mass of co=0.75×(12+16)=21g