Answer:
The mass of objects remains constant throughout the universe. This is because an object is made of he same amount of matter (atoms), no matter where you take it in the universe. If you take an object from the Earth to the moon, only the weight will change.
Explanation:
1 km is equal to 100,000 cm

and you need to divide it to 1 km so that you can get rid of the km.
Because its only representing the most stable isotope of that element but its considered the atomic mass and not average atomic mass
Answer: Rotation cause by the earths orbit and gravity
Explanation:
Answer : The balanced chemical reaction will be:

Explanation :
Single replacement reaction : A chemical reaction in which the more reactive element replace the less reactive element.
It is represented as,

In this reaction, A is more reactive element and B is less reactive element.
As per question, when gold (IV) iodide react with bromine to give gold (IV) bromide and iodine.
The balanced chemical reaction will be:
